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

As of November 2025, 271 flights take off from London and land in Chicago each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.

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

38 flights are operational daily from London to Chicago as of November 2025. The most popular departure time for this route is 12:00, with 67% of flights per day taking off in the afternoon.

What is the cheapest airline that flies from London to Chicago?

British Airways, United Airlines, and Delta are the most popular carriers operating from London to Chicago

When did momondo last update prices for flights from London to Chicago?

Prices for flights from London to Chicago were last updated today.

How old do you have to be to fly from London to Chicago?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Chicago.

What documentation or ID do you need to fly to Chicago?

The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

€386 Cheap Flights from London to Chicago in 2025/26

Q: What is the typical price of a round-trip flight between London and Chicago?

Prices are currently typical for flights on this route. Typical prices usually range from €460 to €729. The lowest price recently found on this route was €471.

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Find the cheapest flights from London to Chicago

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10:20 - 16:55LHR-ORD

12h 35m1 stop

19:20 - 16:25ORD-LHR

15h 05m2 stops

€471Scandinavian Airlines

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Sun, 25 Jan - Wed, 4 Feb

19:50 - 16:45LHR-ORD

50h 55m2 stops

19:20 - 18:50ORD-LHR

41h 30m2 stops

€474Scandinavian Airlines

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Mon, 16 Feb - Sat, 21 Feb

12:15 - 17:20LHR-ORD

11h 05m1 stop

18:30 - 10:50ORD-LHR

10h 20m1 stop

€481Icelandair

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Thu, 8 Jan - Sat, 24 Jan

20:35 - 17:20LHR-ORD

26h 45m1 stop

18:30 - 19:30ORD-LHR

19h 00m1 stop

€483Icelandair

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Wed, 7 Jan - Sat, 24 Jan

10:20 - 16:45LHR-ORD

12h 25m1 stop

19:20 - 18:30ORD-LHR

17h 10m1 stop

€486Scandinavian Airlines

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Sat, 6 Dec - Sun, 7 Dec

19:50 - 16:45LHR-ORD

26h 55m2 stops

19:20 - 09:20ORD-LHR

32h 00m1 stop

€488Scandinavian Airlines

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Wed, 24 Dec - Thu, 5 Feb

18:40 - 16:45LHR-ORD

28h 05m1 stop

19:15 - 09:35ORD-LHR

32h 20m2 stops

€489Scandinavian Airlines

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Wed, 10 Dec - Tue, 8 Sep

17:30 - 16:45LHR-ORD

29h 15m2 stops

19:20 - 16:25ORD-LHR

15h 05m2 stops

€491Scandinavian Airlines

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Wed, 24 Dec - Thu, 5 Feb

15:35 - 16:45LHR-ORD

31h 10m2 stops

19:15 - 09:35ORD-LHR

32h 20m2 stops

€492Scandinavian Airlines

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Sat, 6 Dec - Fri, 11 Sep

18:00 - 09:13LHR-ORD

21h 13m1 stop

15:45 - 05:55ORD-LHR

8h 10mdirect

€501United Airlines

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Sat, 6 Dec - Sun, 7 Dec

United Airlines flights from London to Chicago

Our best United Airlines deals on London to Chicago flight tickets

United Airlines

21 Nov

LHR12:05London Heathrow

34h 15m

1 stop

ORD16:20Chicago O'Hare Intl

22 Nov

ORD18:28Chicago O'Hare Intl

32h 02m

1 stop

LHR08:30London Heathrow

€481

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United Airlines

22 Nov

LHR13:00London Heathrow

24h 55m

1 stop

ORD07:55Chicago O'Hare Intl

23 Nov

ORD15:45Chicago O'Hare Intl

8h 10m

LHR05:55London Heathrow

€492

Find similar

United Airlines

6 Dec

LHR18:00London Heathrow

21h 13m

1 stop

ORD09:13Chicago O'Hare Intl

7 Dec

ORD15:45Chicago O'Hare Intl

8h 10m

LHR05:55London Heathrow

€501

Find similar

Scandinavian Airlines flights from London to Chicago

Our best Scandinavian Airlines deals on London to Chicago flight tickets

Scandinavian Airlines

25 Jan

LHR10:20London Heathrow

12h 35m

1 stop

ORD16:55Chicago O'Hare Intl

4 Feb

ORD19:20Chicago O'Hare Intl

15h 05m

2 stops

LHR16:25London Heathrow

€471

Find similar

Scandinavian Airlines

16 Feb

LHR19:50London Heathrow

50h 55m

2 stops

ORD16:45Chicago O'Hare Intl

21 Feb

ORD19:20Chicago O'Hare Intl

41h 30m

2 stops

LHR18:50London Heathrow

€474

Find similar

Scandinavian Airlines

6 Dec

LHR10:20London Heathrow

12h 25m

1 stop

ORD16:45Chicago O'Hare Intl

7 Dec

ORD19:20Chicago O'Hare Intl

17h 10m

1 stop

LHR18:30London Heathrow

€486

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 25/1

10:20-16:55

1 stop12h 35m

Chicago O'Hare Intl

Wed 4/2

19:20-16:25

2 stops15h 05m

€471

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 16/2

19:50-16:45

2 stops50h 55m

Chicago O'Hare Intl

Sat 21/2

19:20-18:50

2 stops41h 30m

€474

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 8/1

12:15-17:20

1 stop11h 05m

Chicago O'Hare Intl

Sat 24/1

18:30-10:50

1 stop10h 20m

€481

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 7/1

20:35-17:20

1 stop26h 45m

Chicago O'Hare Intl

Sat 24/1

18:30-19:30

1 stop19h 00m

€483

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 6/12

10:20-16:45

1 stop12h 25m

Chicago O'Hare Intl

Sun 7/12

19:20-18:30

1 stop17h 10m

€486

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 24/12

19:50-16:45

2 stops26h 55m

Chicago O'Hare Intl

Thu 5/2

19:20-09:20

1 stop32h 00m

€488

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 10/12

18:40-16:45

1 stop28h 05m

Chicago O'Hare Intl

Tue 8/9

19:15-09:35

2 stops32h 20m

€489

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 24/12

17:30-16:45

2 stops29h 15m

Chicago O'Hare Intl

Thu 5/2

19:20-16:25

2 stops15h 05m

€491

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 6/12

15:35-16:45

2 stops31h 10m

Chicago O'Hare Intl

Fri 11/9

19:15-09:35

2 stops32h 20m

€492

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 6/12

18:00-09:13

1 stop21h 13m

Chicago O'Hare Intl

Sun 7/12

15:45-05:55

Nonstop8h 10m

€501

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between London and Chicago?

What is the cheapest month to fly to Chicago?

The cheapest month to fly to Chicago from London is in February. Flight prices, which tend to average around €497, are often lower during this time because this is during the off-season. If you don’t want to visit Chicago in February, then you should wait until September to fly from London, when ticket prices are also cheap, with an average price of €501.

What is the cheapest day to depart on your flight to Chicago?

On average, the least expensive day to fly to Chicago from London is on a Thursday. momondo users have found tickets for Thursday departures for as low as €668. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Chicago on Tuesday is €3,220.

What is the cheapest London to Chicago flight route?

Fly from London Heathrow to Chicago O'Hare Intl for the best London - Chicago flight prices

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

You are more likely to see cheaper flights to Chicago from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around €629 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from London for as low as €595 on momondo.

What cabin class options are available on London to Chicago flights?

There are 2 cabin classes available to choose from on London to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London to Chicago flight prices changed over time?

As of November 2025, prices for London to Chicago flights are approximately 58% more expensive when compared to flights at the same time last year.

When to book flights from London to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from London to Chicago according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London to Chicago (LON to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Chicago

Fastest flight time	8h 25m
Direct flights	Every day
Airports in Chicago	1 airport

The fastest flight from London to Chicago takes 8h 25m

Direct flights go from London to Chicago every day.

There is 1 airport near Chicago: Chicago O'Hare Intl (ORD)

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How far is London to Chicago by plane?
A flight from London to Chicago will travel around 6349.2 km. By plane, this route typically takes 11h 05m.
When did momondo last update prices for flights from London to Chicago?
Prices for flights from London to Chicago were last updated today.
How old do you have to be to fly from London to Chicago?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Chicago.
What documentation or ID do you need to fly to Chicago?
The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London to Chicago?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to Chicago is Boeing 767-300 (43.38% of total bookings). The next most popular plane models are Boeing 787-10 Dreamliner (14.40%), Boeing 777 (13.79%), and Boeing 787-9 Dreamliner (5.20%).

Why use momondo?

Why should I use momondo to find a flight deal from London to Chicago?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Chicago for you.

Can I find flights from London to Chicago with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Chicago flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Chicago?

momondo provides multiple filters to help you find the best flight to Chicago from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Chicago right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.