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Cheap flights from Chicago to the United Kingdom from £119

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 25/4. 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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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
19:30 - 09:55
ORD
-
GLA
9h 25m1 stop
Icelandair Logo
12:35 - 18:20
GLA
-
ORD
10h 45m1 stop
£352Icelandair
Wed, 11 Mar - Wed, 18 Mar
Icelandair Logo
18:30 - 09:55
ORD
-
GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20
GLA
-
ORD
10h 45m1 stop
£359Icelandair
Wed, 4 Feb - Wed, 11 Feb
Icelandair Logo
18:30 - 09:55
ORD
-
GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20
GLA
-
ORD
10h 45m1 stop
£364Icelandair
Tue, 3 Feb - Sat, 7 Feb
Multiple Airlines Logo
18:30 - 17:15
ORD
-
EDI
16h 45m2 stops
Multiple Airlines Logo
22:30 - 17:20
EDI
-
ORD
24h 50m2 stops
£366Multiple Airlines
Wed, 4 Feb - Mon, 9 Feb
Multiple Airlines Logo
18:30 - 22:30
ORD
-
EDI
22h 00m2 stops
Multiple Airlines Logo
07:55 - 17:20
EDI
-
ORD
15h 25m2 stops
£370Multiple Airlines
Thu, 22 Jan - Mon, 26 Jan
Scandinavian Airlines Logo
20:20 - 18:35
ORD
-
MAN
17h 15m1 stop
Scandinavian Airlines Logo
10:10 - 17:45
MAN
-
ORD
12h 35m1 stop
£393Scandinavian Airlines
Sun, 8 Mar - Thu, 12 Mar
Scandinavian Airlines Logo
20:20 - 20:05
ORD
-
MAN
18h 45m2 stops
Scandinavian Airlines Logo
12:55 - 17:55
MAN
-
ORD
34h 00m2 stops
£393Scandinavian Airlines
Sun, 8 Mar - Thu, 12 Mar
TAP AIR PORTUGAL Logo
18:00 - 14:00
ORD
-
LGW
14h 00m1 stop
TAP AIR PORTUGAL Logo
21:15 - 16:00
LGW
-
ORD
24h 45m2 stops
£394TAP AIR PORTUGAL
Wed, 8 Apr - Tue, 14 Apr
British Airways Logo
11:38 - 14:05
ORD
-
LCY
20h 27m2 stops
British Airways Logo
07:50 - 16:14
LCY
-
ORD
13h 24m1 stop
£449British Airways
Wed, 4 Mar - Wed, 11 Mar
British Airways Logo
19:20 - 14:35
ORD
-
LCY
14h 15m1 stop
British Airways Logo
09:10 - 15:55
LCY
-
ORD
35h 45m1 stop
£463British Airways
Sun, 8 Mar - Mon, 16 Mar

KLM flights from Chicago to United Kingdom

Our best KLM deals on Chicago to United Kingdom flight tickets
KLM
18 Jan
MDW17:59Chicago Midway
11h 41m
1 stop
LHR11:40London Heathrow
27 Jan
LHR08:55London Heathrow
14h 34m
1 stop
MDW17:29Chicago Midway
£444
Find similar
KLM
13 Jan
MDW17:31Chicago Midway
12h 09m
1 stop
LHR11:40London Heathrow
30 Jan
LHR11:05London Heathrow
13h 31m
1 stop
MDW18:36Chicago Midway
£450
Find similar
KLM
14 Jan
ORD16:25Chicago O'Hare Intl
9h 45m
1 stop
LCY08:10London City
21 Jan
LCY09:20London City
11h 00m
1 stop
ORD14:20Chicago O'Hare Intl
£478
Find similar

United Airlines flights from Chicago to United Kingdom

Our best United Airlines deals on Chicago to United Kingdom flight tickets
United Airlines
18 Jan
ORD13:00Chicago O'Hare Intl
11h 20m
1 stop
LHR06:20London Heathrow
27 Jan
LHR10:25London Heathrow
9h 20m
ORD13:45Chicago O'Hare Intl
£438
Find similar
United Airlines
18 Jan
ORD12:00Chicago O'Hare Intl
12h 20m
1 stop
LHR06:20London Heathrow
27 Jan
LHR13:25London Heathrow
12h 45m
1 stop
ORD20:10Chicago O'Hare Intl
£441
Find similar

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 7 January 2026.
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

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 11/3

19:30-09:55

1 stop9h 25m

Glasgow Intl

Wed 18/3

12:35-18:20

1 stop10h 45m

£352

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 4/2

18:30-09:55

1 stop9h 25m

Glasgow Intl

Wed 11/2

12:35-17:20

1 stop10h 45m

£359

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 3/2

18:30-09:55

1 stop9h 25m

Glasgow Intl

Sat 7/2

12:35-17:20

1 stop10h 45m

£364

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Wed 4/2

18:30-17:15

2 stops16h 45m

Edinburgh Turnhouse

Mon 9/2

22:30-17:20

2 stops24h 50m

£366

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Thu 22/1

18:30-22:30

2 stops22h 00m

Edinburgh Turnhouse

Mon 26/1

07:55-17:20

2 stops15h 25m

£370

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Sun 8/3

20:20-18:35

1 stop17h 15m

Manchester

Thu 12/3

10:10-17:45

1 stop12h 35m

£393

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Sun 8/3

20:20-20:05

2 stops18h 45m

Manchester

Thu 12/3

12:55-17:55

2 stops34h 00m

£393

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 8/4

18:00-14:00

1 stop14h 00m

London Gatwick

Tue 14/4

21:15-16:00

2 stops24h 45m

£394

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 4/3

11:38-14:05

2 stops20h 27m

London City

Wed 11/3

07:50-16:14

1 stop13h 24m

£449

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Sun 8/3

19:20-14:35

1 stop14h 15m

London City

Mon 16/3

09:10-15:55

1 stop35h 45m

£463

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 September. Flight prices, which tend to average around £477, 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 September, then departing from Chicago during the month October is also very affordable. Most momondo users find prices during this month for around £484.

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 Sunday. Travellers who choose to depart for United Kingdom on a Sunday will often find tickets for as low as £501. 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 £677.

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 evening when flights can be purchased for as low as £559. Try not to purchase tickets in the afternoon because they tend to be around £574. 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 £579 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 £509 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 32% 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

£294

Fastest flight time

7h 40m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from Chicago in the past 72 hours is £294. The best return flight deal from Chicago to United Kingdom found on momondo in the last 72 hours is £550.
The fastest flight from Chicago to United Kingdom takes 7h 40m
Direct flights go from Chicago to United Kingdom every day.
There are 1,286 airports in United Kingdom. From Chicago there are direct flights to London Heathrow (LHR), Edinburgh Turnhouse (EDI).
Search flight deals

  • 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 £337Free CancellationRating
7.1
593 reviews
Search Icelandair flights
Aer LingusPriceFrom £339Free CancellationRating
7.2
1,425 reviews
Search Aer Lingus flights
LufthansaPriceFrom £356Free CancellationRating
6.8
7,691 reviews
Search Lufthansa flights
British AirwaysPriceFrom £382Free CancellationRating
6.7
7,655 reviews
Search British Airways flights
American AirlinesPriceFrom £383Free CancellationRating
7.2
11,090 reviews
Search American Airlines flights
FinnairPriceFrom £411Free CancellationRating
7.6
1,345 reviews
Search Finnair flights
IberiaPriceFrom £443Free CancellationRating
7.0
3,074 reviews
Search Iberia flights
United AirlinesPriceFrom £459Free CancellationRating
7.4
9,138 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.
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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 £27
Flights to Manchesterfrom £33
Flights to Edinburghfrom £29
Flights to Birminghamfrom £33
Flights to Belfastfrom £28
Flights to Glasgowfrom £30
Flights to Bristolfrom £30
Flights to Newcastle upon Tynefrom £30
Flights to Liverpoolfrom £30
Flights to Aberdeenfrom £41
Flights to Leedsfrom £58
Flights to Invernessfrom £33