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Cheap flights from the United Kingdom to Chicago from £282

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Chicago departing on 31/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United Kingdom to Chicago

Recent return flight deals from the United Kingdom to Chicago

American Airlines Logo
11:20 - 20:50LGW-ORD
15h 30m1 stop
American Airlines Logo
05:00 - 09:00ORD-LGW
22h 00m2 stops
£390American Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
Air Canada Logo
06:50 - 18:41LHR-ORD
17h 51m2 stops
Air Canada Logo
14:08 - 06:30ORD-LHR
10h 22m1 stop
£390Air Canada
Find Deal
Thu, 9 Oct - Sun, 12 Oct
Lufthansa Logo
14:10 - 17:20LHR-ORD
9h 10mdirect
Lufthansa Logo
16:00 - 06:20ORD-LHR
8h 20mdirect
£393Lufthansa
Find Deal
Tue, 7 Oct - Sun, 12 Oct
Icelandair Logo
11:55 - 18:20LGW-ORD
11h 25m1 stop
Icelandair Logo
18:30 - 10:55ORD-LGW
10h 25m1 stop
£397Icelandair
Find Deal
Thu, 30 Oct - Sun, 2 Nov
British Airways Logo
12:35 - 16:15LHR-ORD
8h 40mdirect
British Airways Logo
18:30 - 08:15ORD-LHR
7h 45mdirect
£399British Airways
Find Deal
Sat, 1 Nov - Fri, 7 Nov
British Airways Logo
14:10 - 17:00LHR-ORD
8h 50mdirect
British Airways Logo
17:10 - 06:55ORD-LHR
7h 45mdirect
£400British Airways
Find Deal
Thu, 6 Nov - Tue, 11 Nov
Icelandair Logo
11:55 - 17:20LGW-ORD
11h 25m1 stop
Icelandair Logo
18:30 - 10:55ORD-LGW
10h 25m1 stop
£402Icelandair
Find Deal
Mon, 12 Jan - Mon, 26 Jan
Lufthansa Logo
10:25 - 14:45LHR-ORD
9h 20mdirect
Lufthansa Logo
15:45 - 05:55ORD-LHR
8h 10mdirect
£407Lufthansa
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Aer Lingus Logo
11:55 - 19:00EDI-ORD
13h 05m1 stop
Aer Lingus Logo
15:45 - 08:40ORD-EDI
10h 55m1 stop
£501Aer Lingus
Find Deal
Wed, 15 Oct - Tue, 21 Oct
Aer Lingus Logo
08:10 - 19:00MAN-ORD
16h 50m1 stop
Aer Lingus Logo
21:15 - 16:50ORD-MAN
13h 35m1 stop
£501Aer Lingus
Find Deal
Wed, 15 Oct - Wed, 22 Oct

Icelandair flights from United Kingdom to Chicago

Our best Icelandair deals on United Kingdom to Chicago flight tickets
Icelandair
30 Oct
LGW11:55London Gatwick
11h 25m
1 stop
ORD18:20Chicago O'Hare Intl
2 Nov
ORD18:30Chicago O'Hare Intl
10h 25m
1 stop
LGW10:55London Gatwick
£397
Find similar
Icelandair
12 Jan
LGW11:55London Gatwick
11h 25m
1 stop
ORD17:20Chicago O'Hare Intl
26 Jan
ORD18:30Chicago O'Hare Intl
10h 25m
1 stop
LGW10:55London Gatwick
£402
Find similar
Icelandair
4 Mar
LGW11:55London Gatwick
11h 25m
1 stop
ORD17:20Chicago O'Hare Intl
10 Mar
ORD19:30Chicago O'Hare Intl
10h 25m
1 stop
LGW10:55London Gatwick
£404
Find similar

Finnair flights from United Kingdom to Chicago

Our best Finnair deals on United Kingdom to Chicago flight tickets
Finnair
29 Sept
LHR09:45London Heathrow
17h 35m
2 stops
ORD21:20Chicago O'Hare Intl
5 Oct
ORD18:35Chicago O'Hare Intl
11h 55m
1 stop
LHR12:30London Heathrow
£404
Find similar
Finnair
9 Oct
LHR15:00London Heathrow
14h 53m
1 stop
ORD23:53Chicago O'Hare Intl
12 Oct
ORD13:20Chicago O'Hare Intl
12h 30m
1 stop
LHR07:50London Heathrow
£406
Find similar
Finnair
9 Oct
LHR09:15London Heathrow
14h 21m
1 stop
ORD17:36Chicago O'Hare Intl
12 Oct
ORD20:40Chicago O'Hare Intl
7h 50m
LHR10:30London Heathrow
£413
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to Chicago 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, momondo users made 279,928 searches. Data last updated 18 September 2025.
Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sat 6/12

11:20-20:50

1 stop15h 30m

Chicago O'Hare Intl

Mon 8/12

05:00-09:00

2 stops22h 00m

£390

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 9/10

06:50-18:41

2 stops17h 51m

Chicago O'Hare Intl

Sun 12/10

14:08-06:30

1 stop10h 22m

£390

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 7/10

14:10-17:20

Nonstop9h 10m

Chicago O'Hare Intl

Sun 12/10

16:00-06:20

Nonstop8h 20m

£393

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 30/10

11:55-18:20

1 stop11h 25m

Chicago O'Hare Intl

Sun 2/11

18:30-10:55

1 stop10h 25m

£397

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 1/11

12:35-16:15

Nonstop8h 40m

Chicago O'Hare Intl

Fri 7/11

18:30-08:15

Nonstop7h 45m

£399

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 6/11

14:10-17:00

Nonstop8h 50m

Chicago O'Hare Intl

Tue 11/11

17:10-06:55

Nonstop7h 45m

£400

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 12/1

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Mon 26/1

18:30-10:55

1 stop10h 25m

£402

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 28/10

10:25-14:45

Nonstop9h 20m

Chicago O'Hare Intl

Tue 4/11

15:45-05:55

Nonstop8h 10m

£407

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Wed 15/10

11:55-19:00

1 stop13h 05m

Chicago O'Hare Intl

Tue 21/10

15:45-08:40

1 stop10h 55m

£501

ManchesterChicago

MAN - ORD

MANORD

Manchester

Wed 15/10

08:10-19:00

1 stop16h 50m

Chicago O'Hare Intl

Wed 22/10

21:15-16:50

1 stop13h 35m

£501

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from United Kingdom 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

What is the cheapest month to fly to Chicago?

The cheapest month to fly to Chicago from United Kingdom is in February. Flight prices, which tend to average around £424, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Chicago from United Kingdom during September instead. Flights to Chicago in September, while not as cheap as those in February, still average around £434.

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

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as £596. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Chicago is Saturday, with ticket prices averaging around £653.

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

Flying to Chicago from United Kingdom in the evening is the least expensive time of day to depart. momondo users have found prices as low as £492 when looking at flights departing in the evening. Flights in the afternoon are often more expensive, with an average ticket price of £653.

What is the cheapest United Kingdom to Chicago flight route?

Fly from London Heathrow to Chicago O'Hare Intl for the best United Kingdom - 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 United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around £530 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 United Kingdom for as low as £508 on momondo.

What cabin class options are available on United Kingdom to Chicago flights?

There are 4 cabin classes available to choose from on United Kingdom to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United Kingdom to Chicago flights?

You could potentially save up to 7% on your flight if you consider stops on a United Kingdom to Chicago flight.

Cheap United Kingdom to Chicago flight deals and tips

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

Best price found

£489

Fastest flight time

8h 25m

Direct flights

Every day

Airports in Chicago

1 airport
The best one-way flight to Chicago from United Kingdom in the past 72 hours is £489. The best return flight deal from United Kingdom to Chicago found on momondo in the last 72 hours is £492.
The fastest flight from United Kingdom to Chicago takes 8h 25m
Direct flights go from United Kingdom to Chicago every day.
There is 1 airport near Chicago: Chicago O'Hare Intl (ORD)
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to Chicago?

    Prices for flights from United Kingdom to Chicago are updated daily.

  • How many operators does momondo search for flights from United Kingdom to Chicago?

  • How old do you have to be to fly from United Kingdom to Chicago?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Chicago.

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

    The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United Kingdom to Chicago?

Best airlines flying from United Kingdom to Chicago

Compare and see reviews for airlines that fly from United Kingdom to Chicago with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £307Free CancellationRating
7.0
545 reviews
Search Icelandair flights
Aer LingusPriceFrom £322Free CancellationRating
7.2
1,277 reviews
Search Aer Lingus flights
Air FrancePriceFrom £332Free CancellationRating
7.4
1,468 reviews
Search Air France flights
Scandinavian AirlinesPriceFrom £349Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
Virgin AtlanticPriceFrom £356Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
TAP AIR PORTUGALPriceFrom £362Free CancellationRating
7.1
1,977 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom £372Free CancellationRating
6.7
7,367 reviews
Search British Airways flights
Brussels AirlinesPriceFrom £388Free CancellationRating
7.2
359 reviews
Search Brussels Airlines flights
LufthansaPriceFrom £390Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
Austrian AirlinesPriceFrom £395Free CancellationRating
7.6
850 reviews
Search Austrian Airlines flights

Why use momondo?

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

It is quick and easy to find United Kingdom to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

momondo does allow users to show only those flights to Chicago from United Kingdom which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from United Kingdom to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from United Kingdom.

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

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from United Kingdom and alert you when they change.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport