Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Chicago to London from £144

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
CHI — LON
21 May — 28 May1
1 adult
Tue 21/5
Tue 28/5

The best prices from Chicago to London are usually found in February or January, booked 10 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap flight deals from Chicago to London

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 May 2024.

Popular in

June

Cheapest in

February

Average price

£622

Round-trip from

£68
High demand for flights, 37% potential price rise
Search Deals
Best time to find cheap flights, 19% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Chicago (CHI) to London (LON)
Search Deals

What is the cheapest day to fly round-trip from Chicago to London?

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 21% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Chicago to London?

To save on the cost of your flight from Chicago to London, book at least 11 days before your planned departure. Booking around this time can save you about 3% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £510 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £525.

What is the cheapest month to fly from Chicago to London?

Our data shows that February tends to be the cheapest month to fly to London from Chicago. Users have commonly found prices around £610 for the month, but tickets can be as low as £343. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Chicago to London (CHI - LON)?

Unlike at midday, when flights are generally more expensive, you can save up to 18% on flights from Chicago to London by exploring options for tickets in the evening.

Cheap Finnair flights from Chicago to London

Explore cheap flight options specifically provided by Finnair for the route between Chicago and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.
Take a peek at the cheapest Finnair flights we've detected travelling from Chicago to London. Make sure to double check the flight details before booking.
Tue 21/508:20ORD - LHR
Nonstop7h 50mFinnair
Tue 28/512:15LHR - ORD
Nonstop8h 40mFinnair
Deal found 15/5£359
Mon 7/1021:15ORD - LHR
Nonstop7h 50mFinnair
Tue 15/1010:30LHR - ORD
1 stop14h 36mFinnair
Deal found 15/5£403
Tue 12/1109:00ORD - LHR
Nonstop7h 40mFinnair
Fri 22/1115:45LHR - ORD
Nonstop9h 00mFinnair
Deal found 15/5£470
Wed 5/608:10ORD - LHR
Nonstop8h 00mFinnair
Wed 19/608:10LHR - ORD
Nonstop8h 35mFinnair
Deal found 15/5£517
Fri 24/508:20ORD - LHR
Nonstop7h 50mFinnair
Tue 28/512:15LHR - ORD
Nonstop8h 40mFinnair
Deal found 15/5£552
Tue 21/508:20ORD - LHR
Nonstop7h 50mFinnair
Sun 30/610:05LHR - ORD
Nonstop8h 40mFinnair
Deal found 16/5£553
Tue 21/508:20ORD - LHR
Nonstop7h 50mFinnair
Mon 27/512:15LHR - ORD
Nonstop8h 40mFinnair
Deal found 15/5£556
Tue 21/523:00ORD - LHR
Nonstop7h 45mFinnair
Mon 3/608:10LHR - ORD
Nonstop8h 35mFinnair
Deal found 16/5£557
Fri 24/508:20ORD - LHR
Nonstop7h 50mFinnair
Thu 30/510:05LHR - ORD
1 stop15h 16mFinnair
Deal found 15/5£561

  • If you’re travelling from Chicago to London, one of the more common airlines travelling that route is Finnair. Flights from Finnair travelling this route typically cost £971.34 RT. This price is typically 37% more expensive than other airlines that offer Chicago to London flights. When booking this route, the cheapest RT price found was £801. Chicago O'Hare Intl Airport is the most common Chicago airport to take off from when flying to London. London Heathrow Airport is the most popular arrival airport in London. When flying from Chicago to London, Finnair flights are 7% more popular than any other airline flying that same route.

Cheap Scandinavian Airlines flights from Chicago to London

Explore cheap flight options specifically provided by Scandinavian Airlines for the route between Chicago and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.
Browse through some of the cheapest Scandinavian Airlines flights travelling from Chicago to London. Make sure to examine the flight information before completing your reservation.
Fri 8/1120:10ORD - LHR
2 stops31h 25mScandinavian Airlines
Mon 11/1106:40LHR - ORD
1 stop17h 25mScandinavian Airlines
Deal found 16/5£410
Wed 23/1019:45ORD - LHR
1 stop17h 45mScandinavian Airlines
Thu 31/1007:05LHR - ORD
2 stops17h 00mScandinavian Airlines
Deal found 16/5£418
Wed 23/1019:45ORD - LHR
2 stops16h 45mScandinavian Airlines
Thu 31/1007:05LHR - ORD
2 stops17h 00mScandinavian Airlines
Deal found 15/5£430

  • One of the most popular airlines travelling from Chicago to London is Scandinavian Airlines. Chicago to London flights are typically 63% more expensive than other airlines travelling the same route. Flights from Scandinavian Airlines typically cost £652.41 RT. The cheapest Scandinavian Airlines flight found for this route was £510. Chicago O'Hare Intl Airport is the most common Chicago airport to take off from when flying to London. London Heathrow Airport is the most popular arrival airport in London. When flying from Chicago to London, Scandinavian Airlines flights are 3% more popular than any other airline flying that same route.

Cheap Chicago to London flights in May & June 2024

Find cheap flight options from Chicago to London specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 844,321 searches. Prices were last updated on 16 May 2024.
These are some of the most attractive deals on flights from Chicago to London in 2024. Check back regularly for other flight deals.
Tue 18/617:18ORD - LGW
2 stops34h 42mMultiple Airlines
Mon 24/620:40LGW - ORD
1 stop19h 34mMultiple Airlines
Deal found 16/5£458
Tue 18/617:34ORD - LGW
1 stop34h 26mMultiple Airlines
Mon 24/620:40LGW - ORD
1 stop19h 34mMultiple Airlines
Deal found 16/5£470
Sun 19/514:20ORD - LHR
1 stop11h 35mSWISS
Mon 10/618:40LHR - ORD
1 stop23h 30mSWISS
Deal found 16/5£490
Sat 15/615:56ORD - LGW
1 stop33h 04mMultiple Airlines
Mon 17/610:00LGW - ORD
1 stop28h 21mMultiple Airlines
Deal found 16/5£491
Wed 19/605:39ORD - LGW
1 stop22h 21mMultiple Airlines
Sun 23/620:40LGW - ORD
1 stop31h 12mMultiple Airlines
Deal found 16/5£492
Wed 12/614:45ORD - LHR
1 stop11h 00mIberia
Sun 30/608:10LHR - ORD
Nonstop8h 35mIberia
Deal found 16/5£495
Mon 17/608:27MDW - LGW
1 stop16h 33mMultiple Airlines
Fri 21/610:00LGW - MDW
1 stop28h 34mMultiple Airlines
Deal found 16/5£495
Tue 18/617:18ORD - LGW
2 stops34h 42mMultiple Airlines
Wed 26/613:05LGW - ORD
1 stop14h 47mMultiple Airlines
Deal found 16/5£496
Wed 12/614:45ORD - LHR
1 stop11h 00mIberia
Sun 30/612:30LHR - ORD
1 stop12h 50mIberia
Deal found 16/5£499

Chicago to London 2024 flight deals

Discover exclusive flight deals for travel between Chicago and London in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.
These are some of the most attractive deals on flights from Chicago to London in 2024. Check back regularly for other flight deals.
Mon 9/918:00ORD - LHR
1 stop17h 45mTAP AIR PORTUGAL
Mon 23/906:00LHR - ORD
1 stop16h 15mTAP AIR PORTUGAL
Deal found 16/5£381
Wed 6/1119:15ORD - LGW
1 stop13h 50mTAP AIR PORTUGAL
Tue 12/1116:35LGW - ORD
1 stop28h 55mTAP AIR PORTUGAL
Deal found 16/5£384
Wed 2/1018:00ORD - LHR
1 stop15h 35mTAP AIR PORTUGAL
Tue 22/1019:50LHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Deal found 15/5£386
Mon 30/918:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Tue 15/1019:50LHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Deal found 16/5£390
Wed 30/1020:15ORD - LGW
1 stop13h 50mTAP AIR PORTUGAL
Thu 7/1115:55LGW - ORD
1 stop29h 35mTAP AIR PORTUGAL
Deal found 16/5£391
Fri 18/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sat 26/1018:45LHR - ORD
1 stop27h 45mTAP AIR PORTUGAL
Deal found 16/5£397
Mon 21/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Tue 29/1018:30LHR - ORD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 16/5£398
Fri 18/1018:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sat 26/1018:45LHR - ORD
1 stop27h 45mTAP AIR PORTUGAL
Deal found 16/5£398
Sun 29/918:00ORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Sun 6/1019:50LHR - ORD
1 stop26h 25mTAP AIR PORTUGAL
Deal found 16/5£399

Direct flights to London from Chicago

Discover direct flight options from Chicago to London. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.
To help reduce your travel time, choose from one of these non-stop flights from Chicago to London. Select from other flights from Chicago to London by using the search form above.
Wed 2/1021:25ORD - LHR
Nonstop7h 50mBritish Airways
Thu 17/1008:10LHR - ORD
Nonstop8h 35mBritish Airways
Deal found 15/5£469
Wed 2/1021:25ORD - LHR
Nonstop7h 50mBritish Airways
Tue 8/1013:10LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 16/5£469
Wed 16/1021:25ORD - LHR
Nonstop7h 50mBritish Airways
Wed 23/1008:10LHR - ORD
Nonstop8h 35mBritish Airways
Deal found 16/5£477
Tue 8/1019:15ORD - LHR
Nonstop7h 50mBritish Airways
Tue 15/1013:10LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 16/5£489
Wed 9/1021:25ORD - LHR
Nonstop7h 50mBritish Airways
Tue 15/1011:05LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 16/5£491
Sun 18/818:45ORD - LHR
Nonstop8h 15mUnited Airlines
Wed 28/813:05LHR - ORD
Nonstop8h 55mUnited Airlines
Deal found 15/5£493
Tue 3/908:35ORD - LHR
Nonstop7h 35mIberia
Tue 17/908:10LHR - ORD
Nonstop8h 35mIberia
Deal found 16/5£494
Wed 12/618:00ORD - LHR
Nonstop7h 50mIberia
Sun 30/608:10LHR - ORD
Nonstop8h 35mIberia
Deal found 16/5£495
Tue 1/1016:45ORD - LHR
Nonstop7h 50mBritish Airways
Wed 9/1015:35LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 16/5£498

Chicago to London flights leaving soon

Find last-minute flight options from Chicago to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.
Consider one of these great deals we found on last-minute flights from Chicago to London. Users should examine the flight details to ensure there are no surprises.
Tue 21/508:20ORD - LHR
Nonstop7h 50mFinnair
Tue 28/512:15LHR - ORD
Nonstop8h 40mFinnair
Deal found 15/5£359
Fri 24/508:20ORD - LHR
Nonstop7h 50mBritish Airways
Tue 28/510:05LHR - ORD
Nonstop8h 40mBritish Airways
Deal found 15/5£488
Thu 23/508:20ORD - LHR
Nonstop7h 50mIberia
Tue 28/512:15LHR - ORD
Nonstop8h 40mIberia
Deal found 15/5£493
Thu 23/508:20ORD - LHR
Nonstop7h 50mIberia
Tue 28/513:00LHR - ORD
1 stop12h 54mIberia
Deal found 15/5£497
Tue 21/511:05ORD - LGW
1 stop16h 55mDelta
Tue 28/512:00LGW - ORD
1 stop14h 11mDelta
Deal found 16/5£500
Tue 21/523:00ORD - LHR
Nonstop7h 45mIberia
Tue 28/520:10LHR - ORD
1 stop24h 10mIberia
Deal found 14/5£503
Tue 21/515:45ORD - LHR
Nonstop8h 10mUnited Airlines
Fri 7/608:40LHR - ORD
1 stop13h 15mUnited Airlines
Deal found 15/5£504
Tue 21/509:32ORD - LGW
2 stops18h 28mAir France
Tue 28/512:00LGW - ORD
2 stops14h 55mAir France
Deal found 16/5£504
Tue 21/515:45ORD - LHR
Nonstop8h 10mUnited Airlines
Fri 31/508:40LHR - ORD
1 stop13h 15mUnited Airlines
Deal found 16/5£505

One-way flights to London from Chicago

Search for one-way flight options from Chicago to London. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.
Users travelling one-way from Chicago to London can select one of these great deals. Those seeking round-trip flights from Chicago to London should utilise the search form at the top of the page.
Sat 21/916:45ORD - LGW
1 stop14h 45mMultiple Airlines
Deal found 15/5£144
Wed 18/920:13MDW - LGW
1 stop28h 47mMultiple Airlines
Deal found 16/5£147
Tue 10/907:27ORD - LGW
1 stop17h 33mMultiple Airlines
Deal found 15/5£147
Wed 18/921:15ORD - LGW
1 stop27h 45mMultiple Airlines
Deal found 15/5£148
Tue 10/907:27ORD - LGW
1 stop17h 33mMultiple Airlines
Deal found 16/5£148
Sat 28/911:14ORD - LGW
1 stop20h 16mMultiple Airlines
Deal found 15/5£151
Tue 16/721:15ORD - LGW
1 stop27h 45mMultiple Airlines
Deal found 15/5£159
Wed 17/709:31MDW - LGW
1 stop15h 29mMultiple Airlines
Deal found 16/5£161
Wed 17/721:15ORD - LGW
1 stop27h 45mMultiple Airlines
Deal found 16/5£162

Find flights from Chicago to London within your budget

Customise your flight search to find flights from Chicago to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£364 - £452

Route

Depart

Return

Price

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 3/11

2 stops18h 25m

London Gatwick

Tue 5/11

1 stop28h 55m

£364

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 7/10

Nonstop7h 50m

London Heathrow

Tue 15/10

1 stop14h 36m

£403

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 1/10

1 stop14h 11m

London Gatwick

Tue 8/10

1 stop15h 57m

£405

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 8/11

2 stops31h 25m

London Heathrow

Mon 11/11

1 stop17h 25m

£410

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 3/9

1 stop18h 55m

London Heathrow

Tue 17/9

1 stop11h 10m

£429

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 11/8

1 stop14h 05m

London Gatwick

Mon 26/8

1 stop31h 00m

£443

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 1/10

1 stop11h 45m

London Heathrow

Thu 31/10

1 stop13h 20m

£447

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 5/11

1 stop10h 10m

London Heathrow

Tue 12/11

1 stop13h 10m

£451

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 9/10

1 stop14h 00m

London Gatwick

Wed 16/10

1 stop15h 00m

£452

Flights are sorted by cheapest first

Deals found on 15/5

When is the best time to book a flight from Chicago to London?

Use this chart to determine the optimal time to book a return flight from Chicago to London. Price data was last updated on 10 May 2024.
The best time to book flights from Chicago to London is 10 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Chicago to London?

Use this chart to determine the cheapest time to fly return from Chicago to London. Price data was last updated on 12 May 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their Chicago to London flight should consider departing on Sunday evenings when fares are most often at their lowest. Wednesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to London by month

Plan your trip from Chicago to London by taking into account the cheapest months to travel. The average price of a one-way flight from Chicago to London is currently £152 while a return flight costs £423. Price data was last updated on 12 May 2024.

Currently, January is the cheapest month in which you can book a flight from Chicago to London (average of £110). Flying from Chicago to London in July is currently the most expensive (average of £165). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

£87

February

£98

March

£94

April

£103

May

£108

June

£129

July

£130

August

£114

September

£109

October

£125

November

£91

December

£95

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

LON

Temperature

4 - 17 °C

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 16 May 2024.
Read reviews from past customers who have flown Finnair, Scandinavian Airlines and SWISS from Chicago to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,673 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very Good
10,673 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,568 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
1,994 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Finnair
7.8
Good
1,376 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.7
Good
735 reviews
Delta
8.0
Very Good
10,673 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Chicago to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Chicago to London for under £400 on Cheapflights?

    Yes, there are multiple flights from Chicago to London for under £400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £364, but on average you can expect to pay £387.

  • Are there nonstop flights from Chicago to London for under £500 on Cheapflights?

    Cheapflights has at least 20 direct flights from Chicago to London under £500. A good price for a nonstop flight from Chicago to London is less than £502.

  • Are there last-minute flights available from Chicago to London for under £400?

    There are currently 20+ open flights from Chicago to London within the next 7 days for less than £400.

  • What days are direct flights available from Chicago to London?

    Direct flights are available for this route on the following days: Sunday, Monday, Friday, Saturday.

  • How many flights depart from Chicago to London on average per day?

    Travellers can expect 6 flights from Chicago to London on average per day.
    Evening (6pm - Midnight) - 100% of flight departures

  • How long is the flight from Chicago to London?

    TAP AIR PORTUGAL, Finnair, and Scandinavian Airlines can get you from Chicago to London in just under 7h 50m. Your travel time can differ by up to 23h 35m. There are 3964 mi between Chicago and London. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago to London round-trip?

    Our cheapest airline available from Chicago to London is TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £364 on this airline. Additional options worth looking into are Finnair and Scandinavian Airlines, starting at £403 and £410 round-trip. These flights start at 40% lower than the current average price 3 months from now.

  • What are the most popular routes from Chicago to London?

    The most popular route from Chicago to London is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City.

  • What are the most popular airlines that fly from Chicago to London?

    Consider American Airlines, Finnair or British Airways when booking your flight. These represent the most popular airlines when flying from Chicago to London.

  • What are the most reliable airlines from Chicago to London?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to London on time: EL AL (92%), Air Canada (78%), Austrian Airlines (78%).

  • What are the cheapest flights from Chicago to London?

    On average you can expect to pay £1,353 for a flight from Chicago to London. The cheapest flight overall is £355 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at £359.

  • What does ORD to LHR mean?

    ORD stands for Chicago O'Hare Intl Airport, while LHR stands for London Heathrow Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Chicago to London that include extra baggage allowance?

    The amount of baggage you can bring on your Chicago to London flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Chicago to London with specific airlines?

    Yes, Cheapflights allows you to browse and filter Chicago to London flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Chicago to London that include hotel bookings?

    Yes. In addition to deals on Chicago to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chicago to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to London.

  • Can I find deals for business class flights from Chicago to London?

    Yes. Cheapflights offers flight deals from Chicago to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Chicago to London that allow pets onboard?

    Many airlines flying from Chicago to London offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Chicago to London?

    Yes, you can often find last-minute deals on Chicago to London flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Chicago to London flight deals updated?

    The Chicago to London flight deals you see on this page were last updated on 16/5.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to London
See prices for flight routes from nearby airports that may be better suited for you.

O'Hare Intl to Heathrow flights
O'Hare Intl to Gatwick flights
O'Hare Intl to London City flights
Midway to Heathrow flights
O'Hare Intl to Edinburgh flights
St. Louis to Heathrow flights
St. Louis to Gatwick flights
O'Hare Intl to Manchester flights
O'Hare Intl to Luton flights
O'Hare Intl to Stansted flights
Midway to Manchester flights
St. Louis to Edinburgh flights
O'Hare Intl to Liverpool flights
O'Hare Intl to Birmingham flights
St. Louis to Manchester flights
O'Hare Intl to Leeds flights
St. Louis to Stansted flights
Midway to Birmingham flights
O'Hare Intl to Newcastle upon Tyne flights
O'Hare Intl to Bristol flights
Peoria to Heathrow flights
St. Louis to Leeds flights
Evansville to Heathrow flights
St. Louis to Birmingham flights
Bloomington to Gatwick flights
Midway to Leeds flights
Moline to Gatwick flights
O'Hare Intl to Doncaster flights
Evansville to Manchester flights

Top 10 airlines flying from Chicago to London

Discover the top 10 airlines that operate flights from Chicago to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 844,321 searches. Data last updated 16 May 2024.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£347Average£403FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£387Average£626FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£403Average£515FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£406Average£425FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£469Average£681FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£484Average£586FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£495Average£675FlexibilityNo cancel feeOn-time77%
Search Iberia flights
TAP AIR PORTUGALCheapest£530Average£696FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
American AirlinesCheapest£578Average£770FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£632Average£766FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Manchester to Miami flights
London to Reykjavik flights
London to Germany flights
Belfast Intl Airport to Krakow flights
England to Bruges flights
Bristol to Lisbon flights
London to Bengaluru flights
London Stansted Airport to Manchester flights
Manchester to Pisa flights
Manchester to Antalya flights
Manchester to Lahore flights
Chicago to Liverpool flights

Search flights from Chicago to London by cabin class

Find flights from Chicago to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

Hourly flight availability from Chicago to London

Find hourly flight availability from Chicago to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 May 2024.
1%of flight departuresEarly morningMidnight to 6 am
10%of flight departuresMorning6 am to noon
49%of flight departuresAfternoonNoon to 6 pm
40%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Weekly flight availability from Chicago to London

Explore weekly flight availability from Chicago to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 May 2024.
Monday37daily flights
Tuesday35daily flights
Wednesday35daily flights
Thursday35daily flights
Friday35daily flights
Saturday25daily flights
Sunday25daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to La Paz El Alto Intl
Flights to Lhasa
Flights to Abbotsford
Flights to Parikia Paros
Flights to Cagayan de Oro Laguindingan
Flights to Comiso
Flights to Monterey Regional
Flights to Antakya Hatay
Flights to Samarkand
Flights to Houmt Souk Melita
Flights to Yanbian Yanji Chaoyangchuan
Flights to Daraga Bicol Intl
Flights to Port Vila Bauerfield
Flights to Edremit/Korfez
Flights to Guilin
Flights to Erie
Flights to Mont Lubin Rodrigues Is
Flights to Şırnak Sirnak Serafettin Elci
Flights to Elazig
Flights to Reggio Calabria Tito Menniti
Flights to Malatya Erhac
Flights to Leh
Flights to Tulum Intl
Flights to Praya Lombok Intl

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chicago to London?

Cheapflights makes it easy to find Chicago to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Chicago to London?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Chicago.

Can Cheapflights find flights from Chicago to London with no change fees?

Yes! Cheapflights helps users easily find flights from Chicago to London with no change fees.

Can Cheapflights notify me if prices for flights from Chicago to London become cheaper?

Yes! Start tracking prices for Chicago to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines