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Cheap flights from Chicago to the United Kingdom from £167

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to the United Kingdom departing on 9/10. 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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0 bags

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Cheap return flights

TAP AIR PORTUGAL Logo
20:25 - 16:15ORD-MAN
13h 50m1 stop
TAP AIR PORTUGAL Logo
17:10 - 14:45MAN-ORD
27h 35m1 stop
£301TAP AIR PORTUGAL
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Sun, 9 Nov - Sat, 15 Nov
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£343Icelandair
Find Deal
Thu, 15 Jan - Sun, 18 Jan
Icelandair Logo
18:30 - 10:45ORD-MAN
10h 15m1 stop
Icelandair Logo
11:55 - 18:20MAN-ORD
11h 25m1 stop
£348Icelandair
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Fri, 27 Feb - Sun, 15 Mar
United Airlines Logo
10:40 - 06:30ORD-LHR
13h 50m1 stop
United Airlines Logo
06:50 - 12:05LHR-ORD
11h 15m1 stop
£372United Airlines
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Tue, 30 Sep - Tue, 7 Oct
United Airlines Logo
16:00 - 06:20ORD-LHR
8h 20mdirect
United Airlines Logo
06:50 - 12:05LHR-ORD
11h 15m1 stop
£373United Airlines
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Tue, 30 Sep - Tue, 7 Oct
British Airways Logo
18:10 - 06:55ORD-LHR
7h 45mdirect
British Airways Logo
15:45 - 18:45LHR-ORD
9h 00mdirect
£381British Airways
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Aer Lingus Logo
15:45 - 08:00ORD-LHR
10h 15m1 stop
Aer Lingus Logo
13:25 - 19:00LHR-ORD
11h 35m1 stop
£391Aer Lingus
Find Deal
Fri, 10 Oct - Tue, 14 Oct
British Airways Logo
17:36 - 06:35ORD-LGW
30h 59m1 stop
British Airways Logo
14:30 - 13:23LGW-ORD
28h 53m1 stop
£411British Airways
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Thu, 25 Sep - Wed, 1 Oct
Aer Lingus Logo
21:15 - 13:50ORD-MAN
10h 35m1 stop
Aer Lingus Logo
14:20 - 19:00MAN-ORD
10h 40m1 stop
£417Aer Lingus
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Wed, 1 Oct - Tue, 14 Oct
Iberia Logo
16:45 - 14:05ORD-LCY
15h 20m1 stop
Iberia Logo
19:15 - 17:00LCY-ORD
26h 45m1 stop
£425Iberia
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Tue, 3 Mar - Mon, 9 Mar

Air Canada flights from Chicago to United Kingdom

Our best Air Canada deals on Chicago to United Kingdom flight tickets
Air Canada
22 Sept
ORD21:50Chicago O'Hare Intl
7h 55m
LHR11:45London Heathrow
30 Sept
LHR09:30London Heathrow
11h 25m
1 stop
ORD14:55Chicago O'Hare Intl
£372
Find similar
Air Canada
18 Feb
ORD12:50Chicago O'Hare Intl
12h 20m
1 stop
LHR07:10London Heathrow
23 Feb
LHR19:25London Heathrow
28h 23m
2 stops
ORD17:48Chicago O'Hare Intl
£375
Find similar
Air Canada
29 Sept
ORD15:50Chicago O'Hare Intl
14h 00m
1 stop
LHR11:50London Heathrow
8 Oct
LHR06:50London Heathrow
13h 58m
2 stops
ORD14:48Chicago O'Hare Intl
£377
Find similar

Virgin Atlantic flights from Chicago to United Kingdom

Our best Virgin Atlantic deals on Chicago to United Kingdom flight tickets
Virgin Atlantic
29 Oct
MDW13:08Chicago Midway
13h 42m
2 stops
LHR07:50London Heathrow
5 Nov
LHR06:30London Heathrow
15h 45m
2 stops
MDW16:15Chicago Midway
£390
Find similar
Virgin Atlantic
22 Sept
MDW19:15Chicago Midway
11h 55m
1 stop
LHR13:10London Heathrow
30 Sept
LHR11:45London Heathrow
12h 50m
1 stop
MDW18:35Chicago Midway
£391
Find similar
Virgin Atlantic
8 Oct
MDW09:35Chicago Midway
15h 10m
2 stops
LHR06:45London Heathrow
15 Oct
LHR09:40London Heathrow
18h 34m
2 stops
MDW22:14Chicago Midway
£394
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momondo Fare Finder

 
Customise your flight search to find flights from Chicago to United Kingdom 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 16 September 2025.
Use the filters below to find and compare flights from Chicago to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Sun 9/11

20:25-16:15

1 stop13h 50m

Manchester

Sat 15/11

17:10-14:45

1 stop27h 35m

£301

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Thu 15/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Sun 18/1

12:35-17:20

1 stop10h 45m

£343

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Fri 27/2

18:30-10:45

1 stop10h 15m

Manchester

Sun 15/3

11:55-18:20

1 stop11h 25m

£348

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 30/9

10:40-06:30

1 stop13h 50m

London Heathrow

Tue 7/10

06:50-12:05

1 stop11h 15m

£372

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 30/9

16:00-06:20

Nonstop8h 20m

London Heathrow

Tue 7/10

06:50-12:05

1 stop11h 15m

£373

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 28/10

18:10-06:55

Nonstop7h 45m

London Heathrow

Tue 4/11

15:45-18:45

Nonstop9h 00m

£381

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 10/10

15:45-08:00

1 stop10h 15m

London Heathrow

Tue 14/10

13:25-19:00

1 stop11h 35m

£391

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 25/9

17:36-06:35

1 stop30h 59m

London Gatwick

Wed 1/10

14:30-13:23

1 stop28h 53m

£411

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Wed 1/10

21:15-13:50

1 stop10h 35m

Manchester

Tue 14/10

14:20-19:00

1 stop10h 40m

£417

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Tue 3/3

16:45-14:05

1 stop15h 20m

London City

Mon 9/3

19:15-17:00

1 stop26h 45m

£425

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 the United Kingdom from

How to get the cheapest flight ticket from Chicago to United Kingdom

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 United Kingdom?

The cheapest month to fly to United Kingdom from Chicago is in February. Flight prices, which tend to average around £478, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from Chicago during the month September is also very affordable. Most momondo users find prices during this month for around £485.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Chicago to United Kingdom is on a Thursday. Travellers who choose to depart for United Kingdom on a Thursday will often find tickets for as low as £510. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to United Kingdom for around £649.

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

The cheapest time of day to fly to United Kingdom is in the morning when flights can be purchased for as low as £464. Try not to purchase tickets at midday because they tend to be around £687. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Chicago to United Kingdom flight route?

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

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £584 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Chicago for as low as £511 on momondo.

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

There are 4 cabin classes available to choose from on Chicago to United Kingdom 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 Chicago to United Kingdom flights?

You could potentially save up to 36% on your flight if you consider stops on a Chicago to United Kingdom flight.

Cheap Chicago to United Kingdom flight deals and tips

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

Best price found

£275

Fastest flight time

7h 40m

Direct flights

Every day

Airports in United Kingdom

2 airports
The best one-way flight to United Kingdom from Chicago in the past 72 hours is £275. The best return flight deal from Chicago to United Kingdom found on momondo in the last 72 hours is £440.
The fastest flight from Chicago to United Kingdom takes 7h 40m
Direct flights go from Chicago to United Kingdom every day.
There are 2 airports near United Kingdom: London Heathrow (LHR), Edinburgh Turnhouse (EDI)
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  • When did momondo last update prices for flights from Chicago to United Kingdom?

    Prices for flights from Chicago to United Kingdom were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The necessary travel and health documents for your United Kingdom 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 license 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 Chicago to United Kingdom?

Best airlines flying from Chicago to United Kingdom

Compare and see reviews for airlines that fly from Chicago to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £349Free CancellationRating
7.0
544 reviews
Search Icelandair flights
LufthansaPriceFrom £354Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
British AirwaysPriceFrom £380Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
American AirlinesPriceFrom £381Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
FinnairPriceFrom £409Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
Aer LingusPriceFrom £422Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights
Virgin AtlanticPriceFrom £426Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
IberiaPriceFrom £441Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
United AirlinesPriceFrom £457Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to United Kingdom . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to United Kingdom from Chicago with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to United Kingdom.

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

Yes momondo offers price alerts on flights to United Kingdom from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your United Kingdom trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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Find better results for your trip to the United Kingdom

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £30
Flights to Manchesterfrom £30
Flights to Birminghamfrom £35
Flights to Edinburghfrom £28
Flights to Belfastfrom £29
Flights to Glasgowfrom £38
Flights to Bristolfrom £32
Flights to Newcastle upon Tynefrom £30
Flights to Aberdeenfrom £46
Flights to Liverpoolfrom £30
Flights to Leedsfrom £38
Flights to Invernessfrom £33