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Cheap flights from Chicago to the United Kingdom from £139

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 26/1. 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

Enter your travel dates to find the best prices.
Icelandair Logo
18:30 - 09:55
ORD
-
GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20
GLA
-
ORD
10h 45m1 stop
£352Icelandair
Sat, 10 Jan - Mon, 26 Jan
Icelandair Logo
19:30 - 09:55
ORD
-
GLA
9h 25m1 stop
Icelandair Logo
12:35 - 18:20
GLA
-
ORD
10h 45m1 stop
£355Icelandair
Sun, 8 Mar - Thu, 12 Mar
Scandinavian Airlines Logo
19:20 - 12:15
ORD
-
MAN
34h 55m2 stops
Scandinavian Airlines Logo
10:10 - 16:55
MAN
-
ORD
12h 45m1 stop
£400Scandinavian Airlines
Thu, 22 Jan - Thu, 29 Jan
Multiple Airlines Logo
09:46 - 10:00
ORD
-
LGW
18h 14m1 stop
Multiple Airlines Logo
14:00 - 23:12
LGW
-
ORD
15h 12m1 stop
£403Multiple Airlines
Wed, 1 Apr - Thu, 23 Apr
Multiple Airlines Logo
18:30 - 20:05
ORD
-
STN
19h 35m2 stops
Multiple Airlines Logo
08:30 - 17:20
STN
-
ORD
14h 50m2 stops
£405Multiple Airlines
Thu, 22 Jan - Tue, 27 Jan
Scandinavian Airlines Logo
19:20 - 16:25
ORD
-
LHR
15h 05m2 stops
Scandinavian Airlines Logo
15:35 - 16:55
LHR
-
ORD
31h 20m2 stops
£406Scandinavian Airlines
Thu, 22 Jan - Thu, 29 Jan
Virgin Atlantic Logo
16:25 - 08:50
ORD
-
LCY
10h 25m1 stop
Virgin Atlantic Logo
08:40 - 14:20
LCY
-
ORD
11h 40m1 stop
£451Virgin Atlantic
Mon, 2 Feb - Wed, 11 Feb
SWISS Logo
18:50 - 12:55
ORD
-
LCY
12h 05m1 stop
SWISS Logo
09:20 - 16:20
LCY
-
ORD
13h 00m1 stop
£458SWISS
Wed, 28 Jan - Wed, 4 Feb
SWISS Logo
18:50 - 12:55
ORD
-
LCY
12h 05m1 stop
SWISS Logo
09:20 - 16:20
LCY
-
ORD
13h 00m1 stop
£459SWISS
Sun, 11 Jan - Wed, 21 Jan
Virgin Atlantic Logo
10:48 - 06:50
MDW
-
LHR
14h 02m2 stops
Virgin Atlantic Logo
06:30 - 17:29
LHR
-
MDW
16h 59m2 stops
£474Virgin Atlantic
Tue, 20 Jan - Tue, 27 Jan

Scandinavian Airlines flights from Chicago to United Kingdom

Our best Scandinavian Airlines deals on Chicago to United Kingdom flight tickets
Scandinavian Airlines
22 Jan
ORD19:20Chicago O'Hare Intl
34h 55m
2 stops
MAN12:15Manchester
29 Jan
MAN10:10Manchester
12h 45m
1 stop
ORD16:55Chicago O'Hare Intl
£400
Find similar
Scandinavian Airlines
14 Jan
ORD19:20Chicago O'Hare Intl
15h 05m
2 stops
LHR16:25London Heathrow
22 Jan
LHR10:20London Heathrow
12h 25m
1 stop
ORD16:45Chicago O'Hare Intl
£403
Find similar
Scandinavian Airlines
22 Jan
ORD19:20Chicago O'Hare Intl
15h 05m
2 stops
LHR16:25London Heathrow
29 Jan
LHR15:35London Heathrow
31h 20m
2 stops
ORD16:55Chicago O'Hare Intl
£406
Find similar

Icelandair flights from Chicago to United Kingdom

Our best Icelandair deals on Chicago to United Kingdom flight tickets
Icelandair
10 Jan
ORD18:30Chicago O'Hare Intl
9h 25m
1 stop
GLA09:55Glasgow Intl
26 Jan
GLA12:35Glasgow Intl
10h 45m
1 stop
ORD17:20Chicago O'Hare Intl
£352
Find similar
Icelandair
8 Mar
ORD19:30Chicago O'Hare Intl
9h 25m
1 stop
GLA09:55Glasgow Intl
12 Mar
GLA12:35Glasgow Intl
10h 45m
1 stop
ORD18:20Chicago O'Hare Intl
£355
Find similar
Icelandair
3 Feb
ORD18:30Chicago O'Hare Intl
9h 25m
1 stop
GLA09:55Glasgow Intl
7 Feb
GLA12:35Glasgow Intl
10h 45m
1 stop
ORD17:20Chicago O'Hare Intl
£363
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 25 December 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

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sat 10/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Mon 26/1

12:35-17:20

1 stop10h 45m

£352

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sun 8/3

19:30-09:55

1 stop9h 25m

Glasgow Intl

Thu 12/3

12:35-18:20

1 stop10h 45m

£355

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Thu 22/1

19:20-12:15

2 stops34h 55m

Manchester

Thu 29/1

10:10-16:55

1 stop12h 45m

£400

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 1/4

09:46-10:00

1 stop18h 14m

London Gatwick

Thu 23/4

14:00-23:12

1 stop15h 12m

£403

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Thu 22/1

18:30-20:05

2 stops19h 35m

London Stansted

Tue 27/1

08:30-17:20

2 stops14h 50m

£405

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 22/1

19:20-16:25

2 stops15h 05m

London Heathrow

Thu 29/1

15:35-16:55

2 stops31h 20m

£406

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Mon 2/2

16:25-08:50

1 stop10h 25m

London City

Wed 11/2

08:40-14:20

1 stop11h 40m

£451

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 28/1

18:50-12:55

1 stop12h 05m

London City

Wed 4/2

09:20-16:20

1 stop13h 00m

£458

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Sun 11/1

18:50-12:55

1 stop12h 05m

London City

Wed 21/1

09:20-16:20

1 stop13h 00m

£459

ChicagoLondon

MDW - LHR

MDWLHR

Chicago Midway

Tue 20/1

10:48-06:50

2 stops14h 02m

London Heathrow

Tue 27/1

06:30-17:29

2 stops16h 59m

£474

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 £484, 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 £489.

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 £502. 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 £680.

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 afternoon when flights can be purchased for as low as £557. Try not to purchase tickets at midday because they tend to be around £691. 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 £588 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 £520 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 48% 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

£295

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 £295. The best return flight deal from Chicago to United Kingdom found on momondo in the last 72 hours is £613.
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
7.0
592 reviews
Search Icelandair flights
Aer LingusPriceFrom £339Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights
LufthansaPriceFrom £356Free CancellationRating
6.8
7,655 reviews
Search Lufthansa flights
British AirwaysPriceFrom £382Free CancellationRating
6.7
7,617 reviews
Search British Airways flights
American AirlinesPriceFrom £383Free CancellationRating
7.2
11,060 reviews
Search American Airlines flights
FinnairPriceFrom £411Free CancellationRating
7.6
1,339 reviews
Search Finnair flights
IberiaPriceFrom £443Free CancellationRating
7.0
3,058 reviews
Search Iberia flights
United AirlinesPriceFrom £459Free CancellationRating
7.4
9,115 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 £28
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Flights to Birminghamfrom £30
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Flights to Belfastfrom £30
Flights to Glasgowfrom £29
Flights to Bristolfrom £29
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Flights to Aberdeenfrom £42
Flights to Liverpoolfrom £30
Flights to Leedsfrom £53
Flights to Invernessfrom £39