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

51 flights are operational daily from London to Chicago as of July 2025. The most popular departure time for this route is 14:00, with 54% of flights per day taking off in the afternoon.

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

Icelandair, TAP AIR PORTUGAL, and WestJet are the most popular carriers operating from London to Chicago

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

As of July 2025, 362 flights take off from London and land in Chicago each week. The most common flight departure day for this route is Sat, with 15% of weekly flights taking off on this day.

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.

€384 Cheap Flights from London to Chicago in 2025

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

Prices are currently low for flights on this route. Typical prices usually range from €655 to €895. The lowest price recently found on this route was €437.

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Find the cheapest flights from London to Chicago

Round-trip

One-way

Last minute

Direct

Cheap return flights

08:30 - 11:25LHR-ORD

8h 55mdirect

18:05 - 08:20ORD-LHR

8h 15mdirect

€437Brussels Airlines

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Tue, 12 Aug - Tue, 19 Aug

21:25 - 18:15LHR-ORD

26h 50m1 stop

22:15 - 20:20ORD-LHR

16h 05m1 stop

€458Icelandair

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Tue, 26 Aug - Tue, 2 Sep

06:40 - 16:45LHR-ORD

16h 05m1 stop

19:20 - 18:50ORD-LHR

17h 30m2 stops

€460Scandinavian Airlines

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Wed, 19 Nov - Mon, 24 Nov

06:40 - 16:45LHR-ORD

16h 05m1 stop

19:20 - 18:50ORD-LHR

17h 30m2 stops

€461Scandinavian Airlines

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Sat, 8 Nov - Sat, 15 Nov

06:00 - 16:30LHR-ORD

16h 30m1 stop

18:15 - 22:00ORD-LHR

21h 45m1 stop

€463TAP AIR PORTUGAL

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Sat, 6 Sep - Sat, 13 Sep

08:15 - 20:49LHR-ORD

18h 34m1 stop

09:42 - 06:30ORD-LHR

14h 48m1 stop

€464JetBlue

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Fri, 5 Sep - Wed, 17 Sep

13:45 - 10:55LHR-ORD

27h 10m1 stop

18:00 - 17:45ORD-LHR

17h 45m1 stop

€465TAP AIR PORTUGAL

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Wed, 17 Sep - Sun, 21 Sep

08:55 - 17:15LHR-ORD

13h 20m1 stop

21:20 - 11:20ORD-LHR

33h 00m1 stop

€470United Airlines

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Sat, 1 Nov - Sat, 1 Nov

08:25 - 16:41LHR-ORD

14h 16m1 stop

09:42 - 06:30ORD-LHR

14h 48m1 stop

€474JetBlue

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Sun, 31 Aug - Tue, 7 Oct

08:55 - 16:15LHR-ORD

13h 20m1 stop

17:50 - 07:55ORD-LHR

8h 05mdirect

€483United Airlines

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Thu, 6 Nov - Wed, 12 Nov

Icelandair flights from London to Chicago

Our best Icelandair deals on London to Chicago flight tickets

Icelandair

26 Aug

LHR21:25London Heathrow

26h 50m

1 stop

ORD18:15Chicago O'Hare Intl

2 Sept

ORD22:15Chicago O'Hare Intl

16h 05m

1 stop

LHR20:20London Heathrow

€458

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Icelandair

27 Aug

LHR13:05London Heathrow

11h 10m

1 stop

ORD18:15Chicago O'Hare Intl

3 Sept

ORD19:25Chicago O'Hare Intl

10h 30m

1 stop

LHR11:55London Heathrow

€477

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Icelandair

4 Sept

LHR13:05London Heathrow

14h 10m

1 stop

ORD21:15Chicago O'Hare Intl

6 Oct

ORD19:25Chicago O'Hare Intl

10h 30m

1 stop

LHR11:55London Heathrow

€479

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Scandinavian Airlines flights from London to Chicago

Our best Scandinavian Airlines deals on London to Chicago flight tickets

Scandinavian Airlines

19 Nov

LHR06:40London Heathrow

16h 05m

1 stop

ORD16:45Chicago O'Hare Intl

24 Nov

ORD19:20Chicago O'Hare Intl

17h 30m

2 stops

LHR18:50London Heathrow

€460

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Scandinavian Airlines

8 Nov

LHR06:40London Heathrow

16h 05m

1 stop

ORD16:45Chicago O'Hare Intl

15 Nov

ORD19:20Chicago O'Hare Intl

17h 30m

2 stops

LHR18:50London Heathrow

€461

Find similar

Scandinavian Airlines

6 Nov

LHR07:05London Heathrow

15h 40m

2 stops

ORD16:45Chicago O'Hare Intl

9 Nov

ORD19:20Chicago O'Hare Intl

15h 05m

2 stops

LHR16:25London Heathrow

€464

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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 €496, 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 March to fly from London, when ticket prices are also cheap, with an average price of €522.

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 €572. 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 €3,201.

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 €631 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 €596 on momondo.

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

There are 1 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 July 2025, prices for London to Chicago flights are approximately 5% 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

Best price found	€471
Fastest flight time	8h 35m
Direct flights	Every day
Airports in Chicago	1 airport

The best one-way flight to Chicago from London in the past 72 hours is €471. The best return flight deal from London to Chicago found on momondo in the last 72 hours is €437.

The fastest flight from London to Chicago takes 8h 35m

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 8h 55m.
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 (44.21% of total bookings). The next most popular plane models are Boeing 787-10 Dreamliner (18.33%), Boeing 777 (15.26%), and Boeing 777-300ER (6.05%).

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.