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Cheap flights from Chicago to the United Kingdom from £138

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 10/3. 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

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Icelandair Logo
18:30 - 09:55
ORD
-
GLA
9h 25m1 stop
Icelandair Logo
11:15 - 17:20
GLA
-
ORD
12h 05m1 stop
£354Icelandair
Sat, 10 Jan - Thu, 5 Feb
Icelandair Logo
19:30 - 09:55
ORD
-
GLA
9h 25m1 stop
Icelandair Logo
14:20 - 18:15
GLA
-
ORD
9h 55m1 stop
£354Icelandair
Tue, 24 Mar - Tue, 31 Mar
Multiple Airlines Logo
18:30 - 20:30
ORD
-
EDI
20h 00m2 stops
Multiple Airlines Logo
08:40 - 17:20
EDI
-
ORD
14h 40m2 stops
£361Multiple Airlines
Wed, 18 Feb - Tue, 24 Feb
Multiple Airlines Logo
18:30 - 16:00
ORD
-
GLA
15h 30m2 stops
Multiple Airlines Logo
07:15 - 17:20
GLA
-
ORD
16h 05m2 stops
£372Multiple Airlines
Thu, 22 Jan - Thu, 29 Jan
Scandinavian Airlines Logo
20:20 - 16:00
ORD
-
LHR
14h 40m1 stop
Scandinavian Airlines Logo
06:40 - 17:45
LHR
-
ORD
16h 05m1 stop
£407Scandinavian Airlines
Sun, 15 Mar - Wed, 18 Mar
Scandinavian Airlines Logo
19:20 - 08:35
ORD
-
MAN
31h 15m2 stops
Scandinavian Airlines Logo
10:10 - 16:45
MAN
-
ORD
12h 35m1 stop
£407Scandinavian Airlines
Wed, 14 Jan - Wed, 21 Jan
TAP AIR PORTUGAL Logo
20:15 - 15:45
ORD
-
LGW
13h 30m1 stop
TAP AIR PORTUGAL Logo
16:35 - 14:45
LGW
-
ORD
28h 10m1 stop
£411TAP AIR PORTUGAL
Fri, 30 Jan - Sat, 7 Feb
TAP AIR PORTUGAL Logo
20:15 - 22:40
ORD
-
LHR
20h 25m1 stop
TAP AIR PORTUGAL Logo
18:30 - 15:25
LHR
-
ORD
26h 55m1 stop
£413TAP AIR PORTUGAL
Fri, 16 Jan - Thu, 29 Jan
SWISS Logo
18:50 - 12:55
ORD
-
LCY
12h 05m1 stop
SWISS Logo
09:20 - 16:20
LCY
-
ORD
13h 00m1 stop
£462SWISS
Sun, 11 Jan - Wed, 21 Jan
SWISS Logo
18:50 - 12:55
ORD
-
LCY
12h 05m1 stop
SWISS Logo
09:15 - 16:20
LCY
-
ORD
13h 05m1 stop
£463SWISS
Wed, 14 Jan - Tue, 20 Jan

Scandinavian Airlines flights from Chicago to United Kingdom

Our best Scandinavian Airlines deals on Chicago to United Kingdom flight tickets
Scandinavian Airlines
15 Mar
ORD20:20Chicago O'Hare Intl
14h 40m
1 stop
LHR16:00London Heathrow
18 Mar
LHR06:40London Heathrow
16h 05m
1 stop
ORD17:45Chicago O'Hare Intl
£407
Find similar
Scandinavian Airlines
2 Mar
ORD19:20Chicago O'Hare Intl
20h 20m
1 stop
LHR21:40London Heathrow
5 Mar
LHR06:40London Heathrow
16h 05m
1 stop
ORD16:45Chicago O'Hare Intl
£407
Find similar
Scandinavian Airlines
30 Jan
ORD19:10Chicago O'Hare Intl
17h 20m
2 stops
LHR18:30London Heathrow
4 Feb
LHR07:05London Heathrow
15h 40m
2 stops
ORD16:45Chicago O'Hare Intl
£408
Find similar

Delta flights from Chicago to United Kingdom

Our best Delta deals on Chicago to United Kingdom flight tickets
Delta
8 Feb
MDW11:45Chicago Midway
13h 20m
1 stop
LHR07:05London Heathrow
5 Mar
LHR08:40London Heathrow
14h 57m
2 stops
MDW17:37Chicago Midway
£474
Find similar
Delta
12 Jan
ORD07:10Chicago O'Hare Intl
20h 45m
2 stops
GLA09:55Glasgow Intl
6 Feb
GLA06:05Glasgow Intl
14h 15m
1 stop
ORD14:20Chicago O'Hare Intl
£480
Find similar
Delta
11 Mar
ORD17:25Chicago O'Hare Intl
9h 45m
1 stop
LCY08:10London City
20 Mar
LCY09:20London City
11h 00m
1 stop
ORD15:20Chicago O'Hare Intl
£490
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 17 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

Thu 5/2

11:15-17:20

1 stop12h 05m

£354

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 24/3

19:30-09:55

1 stop9h 25m

Glasgow Intl

Tue 31/3

14:20-18:15

1 stop9h 55m

£354

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Wed 18/2

18:30-20:30

2 stops20h 00m

Edinburgh Turnhouse

Tue 24/2

08:40-17:20

2 stops14h 40m

£361

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Thu 22/1

18:30-16:00

2 stops15h 30m

Glasgow Intl

Thu 29/1

07:15-17:20

2 stops16h 05m

£372

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 15/3

20:20-16:00

1 stop14h 40m

London Heathrow

Wed 18/3

06:40-17:45

1 stop16h 05m

£407

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Wed 14/1

19:20-08:35

2 stops31h 15m

Manchester

Wed 21/1

10:10-16:45

1 stop12h 35m

£407

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 30/1

20:15-15:45

1 stop13h 30m

London Gatwick

Sat 7/2

16:35-14:45

1 stop28h 10m

£411

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 16/1

20:15-22:40

1 stop20h 25m

London Heathrow

Thu 29/1

18:30-15:25

1 stop26h 55m

£413

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

£462

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 14/1

18:50-12:55

1 stop12h 05m

London City

Tue 20/1

09:15-16:20

1 stop13h 05m

£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 £487, 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 £491.

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 £507. 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 £683.

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 £555. Try not to purchase tickets at midday because they tend to be around £696. 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 £594 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 £524 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 53% 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

£297

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 £297. The best return flight deal from Chicago to United Kingdom found on momondo in the last 72 hours is £564.
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 £340Free CancellationRating
7.0
591 reviews
Search Icelandair flights
Aer LingusPriceFrom £342Free CancellationRating
7.2
1,395 reviews
Search Aer Lingus flights
LufthansaPriceFrom £359Free CancellationRating
6.8
7,634 reviews
Search Lufthansa flights
British AirwaysPriceFrom £385Free CancellationRating
6.7
7,583 reviews
Search British Airways flights
American AirlinesPriceFrom £386Free CancellationRating
7.2
11,053 reviews
Search American Airlines flights
FinnairPriceFrom £415Free CancellationRating
7.6
1,338 reviews
Search Finnair flights
IberiaPriceFrom £447Free CancellationRating
7.0
3,051 reviews
Search Iberia flights
United AirlinesPriceFrom £463Free CancellationRating
7.4
9,092 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
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