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Cheap flights from Chicago to London from £142

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — LON
4 Nov — 11 Nov1
1 adult

The best prices from Chicago to London are usually found in February or January, booked 68 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 30 October 2024.

Round-trip from

£296

One-way from

£142

Popular in

June

Cheapest in

February
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 8/12-10/12
  • 3 total stops
  • 47h 10m total
  • Chicago to London
Search Deals
Icelandair
  • Icelandair
  • 8/1
  • 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 30 October 2024.

Mon 30/1219:10ORD - LHR
1 stop16h 30mScandinavian Airlines
Sun 19/117:00LHR - ORD
1 stop28h 50mScandinavian Airlines
Deal found 30/10£447
Fri 6/1220:20ORD - LGW
1 stop13h 25mTAP AIR PORTUGAL
Fri 13/1221:30LGW - ORD
2 stops48h 00mTAP AIR PORTUGAL
Deal found 29/10£447
Tue 12/1118:30ORD - LHR
1 stop19h 00mIcelandair
Sun 24/1120:40LHR - ORD
1 stop26h 40mIcelandair
Deal found 29/10£448
Sun 1/1218:30ORD - LGW
1 stop10h 25mIcelandair
Mon 9/1211:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 29/10£448
Sun 17/1120:25ORD - LGW
3 stops30h 05mMultiple Airlines
Tue 26/1110:00LGW - ORD
2 stops35h 30mMultiple Airlines
Deal found 29/10£449
Sun 8/1208:51ORD - LHR
2 stops30h 44mTAP AIR PORTUGAL
Tue 10/1218:30LHR - ORD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 30/10£454
Wed 4/1216:19ORD - LCY
3 stops34h 26mMultiple Airlines
Wed 11/1209:25LCY - ORD
3 stops30h 52mMultiple Airlines
Deal found 29/10£457
Sun 8/1218:30ORD - LTN
2 stops16h 30mMultiple Airlines
Tue 10/1207:00LTN - ORD
3 stops39h 06mMultiple Airlines
Deal found 29/10£460
Wed 4/1222:05ORD - LHR
Nonstop7h 35mIberia
Wed 11/1206:15LHR - ORD
1 stop14h 15mIberia
Deal found 29/10£464
Mon 11/1122:32MDW - LGW
1 stop30h 03mMultiple Airlines
Sun 17/1107:00LGW - MDW
2 stops40h 56mMultiple Airlines
Deal found 29/10£465
Mon 4/1113:55ORD - LHR
1 stop10h 55mVirgin Atlantic
Mon 11/1106:30LHR - ORD
1 stop14h 00mVirgin Atlantic
Deal found 28/10£467
Fri 8/1121:10ORD - LHR
Nonstop8h 05mMultiple Airlines
Sun 10/1108:55LHR - ORD
1 stop13h 20mMultiple Airlines
Deal found 28/10£468

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 1,015,184 searches. Data last updated 30 October 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£296 - £491

Route

Depart

Return

Price

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 8/12

2 stops18h 15m

London Gatwick

Tue 10/12

1 stop28h 55m

£296

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 17/11

1 stop14h 50m

London Heathrow

Thu 21/11

1 stop15h 10m

£316

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 30/1

1 stop10h 25m

London Gatwick

Sat 8/2

1 stop11h 25m

£365

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 22/1

1 stop14h 45m

London Heathrow

Sat 1/2

1 stop15h 28m

£374

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 14/11

2 stops32h 49m

London Heathrow

Sun 17/11

3 stops21h 16m

£395

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 8/12

1 stop13h 35m

London Heathrow

Tue 10/12

1 stop32h 01m

£406

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 4/12

1 stop10h 52m

London Heathrow

Tue 10/12

Nonstop8h 50m

£438

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 18/11

Nonstop7h 45m

London Heathrow

Wed 2/4

1 stop13h 55m

£468

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 8/11

Nonstop8h 05m

London Heathrow

Sun 10/11

1 stop13h 20m

£478

Chicago MidwayLondon Heathrow

MDW - LHR

MDWLHR

Chicago Midway

Wed 4/12

1 stop11h 37m

London Heathrow

Tue 10/12

1 stop13h 36m

£480

Chicago O'Hare IntlLondon City

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 22/1

2 stops18h 00m

London City

Mon 27/1

2 stops34h 18m

£485

Chicago O'Hare IntlLondon Gatwick

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 13/11

1 stop16h 45m

London Gatwick

Wed 20/11

1 stop27h 30m

£491

Flights are sorted by cheapest first

Deals found on 28/10

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 25 October 2024.

The best time to book flights from Chicago to London is 68 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.

Find deals

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 £159). 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 30 October 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.

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 30 October 2024.
Read reviews from past customers who have flown Scandinavian Airlines, JetBlue 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
8,845 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Delta
8.0
Very Good
8,845 reviews
Delta
8.0
Very Good
8,845 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

KLM
7.8
Good
1,352 reviews
Delta
8.0
Very Good
8,845 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Finnair
7.7
Good
1,318 reviews
Delta
8.0
Very Good
8,845 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Austrian Airlines
7.7
Good
833 reviews
Delta
8.0
Very Good
8,845 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

SWISS
7.6
Good
1,641 reviews
Delta
8.0
Very Good
8,845 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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 TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £296 on this airline. Additional options worth looking into are Scandinavian Airlines and Icelandair, starting at £316 and £365 round-trip. These flights start at 48% lower than the current average price 3 months from now.

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

    £142 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on SWISS and TAP AIR PORTUGAL, with prices starting from £223 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 (76%), Air Canada (76%), Austrian Airlines (76%).

  • What are the cheapest flights from Chicago to London?

    On average you can expect to pay £3,137 for a flight from Chicago to London. The cheapest flight overall is £286 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at £360.

  • 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 £159). 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 7 airlines flying from Chicago to London

Discover the top 7 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 1,015,184 searches. Data last updated 30 October 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£313Average£624FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£335Average£394FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
American AirlinesCheapest£395Average£730FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£443Average£725FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Aer LingusCheapest£458Average£662FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£480Average£676FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£483Average£633FlexibilityNo cancel feeOn-time77%
Search Iberia flights

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.

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