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Cheap flights from the United Kingdom to Chicago from £236

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

Icelandair Logo
15:40 - 18:15LGW-ORD
32h 35m1 stop
Icelandair Logo
19:25 - 14:35ORD-LGW
13h 10m1 stop
£420Icelandair
Find Deal
ma., 13 okt. - ma., 20 okt.
Logo
08:45 - 23:15LCY-ORD
20h 30m2 stops
Logo
17:55 - 17:15ORD-LCY
17h 20m2 stops
£420
Find Deal
to., 25 sep. - lø., 4 okt.
Austrian Airlines Logo
19:30 - 13:20LHR-ORD
23h 50m1 stop
Austrian Airlines Logo
12:50 - 06:55ORD-LHR
12h 05m1 stop
£420Austrian Airlines
Find Deal
ma., 8 sep. - on., 24 sep.
British Airways Logo
09:15 - 11:50LHR-ORD
8h 35mdirect
British Airways Logo
17:40 - 07:20ORD-LHR
7h 40mdirect
£426British Airways
Find Deal
sø., 14 sep. - ma., 6 okt.
British Airways Logo
09:15 - 11:50LHR-ORD
8h 35mdirect
British Airways Logo
21:15 - 11:05ORD-LHR
7h 50mdirect
£431British Airways
Find Deal
ma., 8 sep. - ti., 30 sep.
Finnair Logo
17:00 - 06:51LHR-ORD
19h 51m2 stops
Finnair Logo
06:05 - 06:20ORD-LHR
18h 15m2 stops
£434Finnair
Find Deal
to., 25 sep. - ma., 29 sep.
Lufthansa Logo
14:10 - 16:45LHR-ORD
8h 35mdirect
Lufthansa Logo
21:50 - 11:45ORD-LHR
7h 55mdirect
£437Lufthansa
Find Deal
to., 11 sep. - sø., 14 sep.
Lufthansa Logo
08:45 - 14:55LCY-ORD
12h 10m1 stop
Lufthansa Logo
22:30 - 18:35ORD-LCY
14h 05m1 stop
£472Lufthansa
Find Deal
to., 11 sep. - to., 25 sep.
Finnair Logo
14:00 - 12:41MAN-ORD
28h 41m2 stops
Finnair Logo
22:35 - 17:45ORD-MAN
13h 10m1 stop
£496Finnair
Find Deal
on., 1 okt. - ma., 6 okt.
Aer Lingus Logo
11:55 - 19:00EDI-ORD
13h 05m1 stop
Aer Lingus Logo
15:45 - 12:50ORD-EDI
15h 05m1 stop
£511Aer Lingus
Find Deal
ma., 13 okt. - ma., 20 okt.

Austrian Airlines flights from United Kingdom to Chicago

Our best Austrian Airlines deals on United Kingdom to Chicago flight tickets
Austrian Airlines
8 Sept
LHR19:30London Heathrow
23h 50m
1 stop
ORD13:20Chicago O'Hare Intl
24 Sept
ORD12:50Chicago O'Hare Intl
12h 05m
1 stop
LHR06:55London Heathrow
£420
Find similar
Austrian Airlines
5 Sept
LHR06:00London Heathrow
13h 20m
1 stop
ORD13:20Chicago O'Hare Intl
6 Oct
ORD18:00Chicago O'Hare Intl
8h 20m
LHR08:20London Heathrow
£426
Find similar
Austrian Airlines
3 Sept
LHR08:30London Heathrow
9h 00m
ORD11:30Chicago O'Hare Intl
11 Sept
ORD21:50Chicago O'Hare Intl
7h 55m
LHR11:45London Heathrow
£438
Find similar

Lufthansa flights from United Kingdom to Chicago

Our best Lufthansa deals on United Kingdom to Chicago flight tickets
Lufthansa
11 Sept
LHR14:10London Heathrow
8h 35m
ORD16:45Chicago O'Hare Intl
14 Sept
ORD21:50Chicago O'Hare Intl
7h 55m
LHR11:45London Heathrow
£437
Find similar
Lufthansa
3 Sept
LHR08:30London Heathrow
9h 00m
ORD11:30Chicago O'Hare Intl
4 Oct
ORD15:05Chicago O'Hare Intl
11h 35m
1 stop
LHR08:40London Heathrow
£450
Find similar
Lufthansa
2 Sept
LCY08:45London City
12h 10m
1 stop
ORD14:55Chicago O'Hare Intl
13 Nov
ORD16:20Chicago O'Hare Intl
11h 00m
1 stop
LCY09:20London City
£468
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 29 august 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

ma. 13/10

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

ma. 20/10

19:25-14:35

1 stop13h 10m

£420

LondonChicago

LCY - ORD

LCYORD

London City

to. 25/9

08:45-23:15

2 stops20h 30m

Chicago O'Hare Intl

lø. 4/10

17:55-17:15

2 stops17h 20m

£420

LondonChicago

LHR - ORD

LHRORD

London Heathrow

ma. 8/9

19:30-13:20

1 stop23h 50m

Chicago O'Hare Intl

on. 24/9

12:50-06:55

1 stop12h 05m

£420

LondonChicago

LHR - ORD

LHRORD

London Heathrow

sø. 14/9

09:15-11:50

Nonstop8h 35m

Chicago O'Hare Intl

ma. 6/10

17:40-07:20

Nonstop7h 40m

£426

LondonChicago

LHR - ORD

LHRORD

London Heathrow

ma. 8/9

09:15-11:50

Nonstop8h 35m

Chicago O'Hare Intl

ti. 30/9

21:15-11:05

Nonstop7h 50m

£431

LondonChicago

LHR - ORD

LHRORD

London Heathrow

to. 25/9

17:00-06:51

2 stops19h 51m

Chicago O'Hare Intl

ma. 29/9

06:05-06:20

2 stops18h 15m

£434

LondonChicago

LHR - ORD

LHRORD

London Heathrow

to. 11/9

14:10-16:45

Nonstop8h 35m

Chicago O'Hare Intl

sø. 14/9

21:50-11:45

Nonstop7h 55m

£437

LondonChicago

LCY - ORD

LCYORD

London City

to. 11/9

08:45-14:55

1 stop12h 10m

Chicago O'Hare Intl

to. 25/9

22:30-18:35

1 stop14h 05m

£472

ManchesterChicago

MAN - ORD

MANORD

Manchester

on. 1/10

14:00-12:41

2 stops28h 41m

Chicago O'Hare Intl

ma. 6/10

22:35-17:45

1 stop13h 10m

£496

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

ma. 13/10

11:55-19:00

1 stop13h 05m

Chicago O'Hare Intl

ma. 20/10

15:45-12:50

1 stop15h 05m

£511

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 £429, 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 March instead. Flights to Chicago in March, while not as cheap as those in February, still average around £448.

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 £598. 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 Sunday, with ticket prices averaging around £657.

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 £497 when looking at flights departing in the evening. Flights in the afternoon are often more expensive, with an average ticket price of £663.

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 £541 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 £517 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?

No. A direct flight is the cheapest option for a flight between United Kingdom to Chicago.

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

£553

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 £553. The best return flight deal from United Kingdom to Chicago found on momondo in the last 72 hours is £495.
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 £310Free CancellationRating
7.0
537 reviews
Search Icelandair flights
Aer LingusPriceFrom £325Free CancellationRating
7.2
1,240 reviews
Search Aer Lingus flights
Air FrancePriceFrom £335Free CancellationRating
7.4
1,472 reviews
Search Air France flights
Scandinavian AirlinesPriceFrom £352Free CancellationRating
7.4
1,481 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom £366Free CancellationRating
7.1
1,966 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom £376Free CancellationRating
6.7
7,316 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £379Free CancellationRating
7.4
661 reviews
Search Virgin Atlantic flights
Brussels AirlinesPriceFrom £392Free CancellationRating
7.2
355 reviews
Search Brussels Airlines flights
LufthansaPriceFrom £395Free CancellationRating
6.8
7,371 reviews
Search Lufthansa flights
Austrian AirlinesPriceFrom £401Free CancellationRating
7.6
836 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