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Cheap flights from Chicago to London from £159

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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LON
26 Nov — 3 Dec1
1 adult

The best prices from Chicago to London are usually found in February or January, booked 84 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 21 November 2024.

Round-trip from

£473

One-way from

£159

Popular in

June

Cheapest in

February
4/12-10/12
  • 4/12-10/12
  • 4 total stops
  • 37h 36m total
  • Chicago to London
Search Deals
Icelandair
  • Icelandair
  • 19/1
  • 1 total stop
  • 19h 00m total
  • Chicago to London
Search Deals
High demand for flights, 28% potential price rise
Search Deals
Best time to find cheap flights, 16% potential price drop
Search Deals

Find flight deals from Chicago to London

Cheapest flights from Chicago to London
Explore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Wed 4/1210:43ORD - LHR
2 stops19h 07mMultiple Airlines
Tue 10/1212:05LHR - ORD
2 stops18h 29mMultiple Airlines
Deal found 19/11£473
Mon 25/1118:30ORD - LGW
1 stop10h 25mIcelandair
Thu 5/1211:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 20/11£475
Sun 8/1220:25ORD - LHR
1 stop15h 05mTAP AIR PORTUGAL
Tue 10/1208:15LHR - ORD
2 stops31h 03mTAP AIR PORTUGAL
Deal found 19/11£478
Sun 8/1220:25ORD - LGW
2 stops17h 55mMultiple Airlines
Thu 12/1221:00LGW - ORD
2 stops24h 30mMultiple Airlines
Deal found 20/11£478
Tue 31/1218:30ORD - LHR
1 stop10h 20mIcelandair
Wed 15/112:15LHR - ORD
1 stop11h 05mIcelandair
Deal found 19/11£481
Mon 25/1111:35ORD - LHR
1 stop13h 35mAir Canada
Wed 4/1215:00LHR - ORD
1 stop25h 54mAir Canada
Deal found 19/11£482
Wed 4/1211:35ORD - LHR
1 stop13h 35mUnited Airlines
Wed 11/1208:55LHR - ORD
1 stop13h 20mUnited Airlines
Deal found 20/11£488
Fri 6/1220:20ORD - LGW
1 stop13h 25mTAP AIR PORTUGAL
Fri 13/1221:30LGW - ORD
2 stops48h 00mTAP AIR PORTUGAL
Deal found 20/11£488
Mon 25/1119:05ORD - LGW
1 stop16h 45mSWISS
Wed 4/1218:45LGW - ORD
1 stop27h 30mSWISS
Deal found 20/11£491
Wed 20/1118:35ORD - LHR
Nonstop7h 40mIberia
Wed 27/1110:05LHR - ORD
1 stop34h 25mIberia
Deal found 19/11£496
Fri 6/1219:10ORD - LHR
2 stops37h 25mScandinavian Airlines
Mon 9/1206:40LHR - ORD
2 stops15h 10mScandinavian Airlines
Deal found 20/11£497
Wed 4/1212:00ORD - LHR
1 stop12h 20mDelta
Tue 10/1209:00LHR - ORD
1 stop12h 05mDelta
Deal found 20/11£498

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 939,815 searches. Data last updated 21 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 4/12

10:43-11:50

2 stops19h 07m

London Heathrow

Tue 10/12

12:05-00:34

2 stops18h 29m

£473

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 7/3

19:10-16:25

2 stops15h 15m

London Heathrow

Sun 16/3

10:35-16:50

2 stops35h 15m

£474

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 11/5

22:15-14:40

1 stop10h 25m

London Gatwick

Sun 25/5

15:40-21:15

1 stop11h 35m

£474

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 8/1

18:30-10:55

1 stop10h 25m

London Gatwick

Thu 16/1

14:00-09:52

1 stop25h 52m

£474

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 6/3

19:10-18:05

1 stop16h 55m

London Stansted

Mon 10/3

07:40-16:50

1 stop14h 10m

£474

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 8/12

20:25-17:30

1 stop15h 05m

London Heathrow

Tue 10/12

08:15-09:18

2 stops31h 03m

£476

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 8/1

19:15-15:05

1 stop13h 50m

London Gatwick

Thu 16/1

15:55-15:30

1 stop29h 35m

£476

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 31/12

18:30-10:50

1 stop10h 20m

London Heathrow

Tue 14/1

12:15-17:20

1 stop11h 05m

£481

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 17/2

21:55-19:05

1 stop15h 10m

London Luton

Tue 25/2

08:25-20:00

1 stop17h 35m

£481

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 16/4

17:55-07:50

Nonstop7h 55m

London Heathrow

Fri 2/5

07:30-17:25

1 stop15h 55m

£482

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to London

Have a flexible travel schedule? Discover the best time to fly to London from Chicago with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Chicago to London

Get recent, data-driven insights about flights from Chicago to London including ideal travel times, pricing trends, and more.

How far ahead should I 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 15 November 2024.

The best time to book flights from Chicago to London is 84 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.

What is the cheapest month to book a flight from Chicago to London?

Currently, January is the cheapest month in which you can book a flight from Chicago to London (average of £112). Flying from Chicago to London in July is currently the most expensive (average of £160). 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.

What is the cheapest time of day to fly from CHI to LON?

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 21 November 2024.

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.

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 21 November 2024.

The most flights from CHI to LON are scheduled on a Monday (38 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 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 21 November 2024.
Read reviews from past customers who have flown Scandinavian Airlines, British Airways and Finnair 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
8,756 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very Good
8,756 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.8
Good
288 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
389 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very Good
8,756 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    Our cheapest airline available from Chicago to London is Scandinavian Airlines. Our recent data shows that you can find tickets from as low as £474 on this airline. Additional options worth looking into are Icelandair and British Airways, starting at £474 and £476 round-trip. These flights start at 20% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Chicago to London one-way?

    £159 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on WestJet and TAP AIR PORTUGAL, with prices starting from £215 and £236, respectively.

  • 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 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: Brussels Airlines (75%), Air Canada (74%), Austrian Airlines (74%).

  • What are the cheapest flights from Chicago to London?

    On average you can expect to pay £3,223 for a flight from Chicago to London. The cheapest flight overall is £294 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at £375.

  • 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.

  • What is the cheapest month to book a flight from Chicago to London?

    Currently, January is the cheapest month in which you can book a flight from Chicago to London (average of £112). Flying from Chicago to London in July is currently the most expensive (average of £160). 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.

See more FAQs

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Alternative routes for Chicago to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Chicago to London

Discover the top 8 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 939,815 searches. Data last updated 21 November 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£321Average£785FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£343Average£404FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
FinnairCheapest£377Average£743FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£405Average£748FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£469Average£679FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£492Average£688FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£495Average£675FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£534Average£744FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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.

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