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Cheap flights from Chicago to the United Kingdom from £141

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 25/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap return flights

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Multiple Airlines Logo
18:30 - 23:10ORD-GLA
22h 40m2 stops
Multiple Airlines Logo
22:30 - 17:20GLA-ORD
24h 50m2 stops
£343Multiple Airlines
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Sun, 11 Jan - Sat, 17 Jan
Multiple Airlines Logo
18:30 - 22:30ORD-EDI
22h 00m2 stops
Multiple Airlines Logo
08:40 - 17:20EDI-ORD
14h 40m2 stops
£344Multiple Airlines
Find Deal
Thu, 8 Jan - Tue, 13 Jan
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£359Icelandair
Find Deal
Sun, 11 Jan - Sat, 17 Jan
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£371Icelandair
Find Deal
Tue, 3 Feb - Sat, 7 Feb
Scandinavian Airlines Logo
20:20 - 20:05ORD-MAN
18h 45m2 stops
Scandinavian Airlines Logo
10:10 - 17:45MAN-ORD
12h 35m1 stop
£422Scandinavian Airlines
Find Deal
Sun, 8 Mar - Thu, 12 Mar
Scandinavian Airlines Logo
19:20 - 21:40ORD-LHR
20h 20m1 stop
Scandinavian Airlines Logo
15:35 - 16:45LHR-ORD
31h 10m2 stops
£427Scandinavian Airlines
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Thu, 22 Jan - Tue, 10 Feb
SWISS Logo
16:10 - 08:40ORD-LCY
34h 30m1 stop
SWISS Logo
09:15 - 16:20LCY-ORD
13h 05m1 stop
£475SWISS
Find Deal
Sun, 7 Dec - Tue, 16 Dec
Delta Logo
12:50 - 06:25MDW-LHR
11h 35m1 stop
Delta Logo
06:30 - 16:34LHR-MDW
16h 04m2 stops
£478Delta
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Wed, 3 Dec - Wed, 10 Dec
Delta Logo
12:50 - 07:50MDW-LHR
13h 00m1 stop
Delta Logo
08:40 - 18:18LHR-MDW
15h 38m2 stops
£480Delta
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Tue, 2 Dec - Tue, 9 Dec
SWISS Logo
18:50 - 12:55ORD-LCY
12h 05m1 stop
SWISS Logo
17:50 - 16:20LCY-ORD
28h 30m1 stop
£481SWISS
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Wed, 14 Jan - Mon, 19 Jan

Delta flights from Chicago to United Kingdom

Our best Delta deals on Chicago to United Kingdom flight tickets
Delta
3 Dec
MDW12:50Chicago Midway
11h 35m
1 stop
LHR06:25London Heathrow
10 Dec
LHR06:30London Heathrow
16h 04m
2 stops
MDW16:34Chicago Midway
£478
Find similar
Delta
24 Nov
MDW10:47Chicago Midway
13h 38m
1 stop
LHR06:25London Heathrow
5 Dec
LHR08:40London Heathrow
15h 38m
2 stops
MDW18:18Chicago Midway
£479
Find similar
Delta
2 Dec
MDW12:50Chicago Midway
13h 00m
1 stop
LHR07:50London Heathrow
9 Dec
LHR08:40London Heathrow
15h 38m
2 stops
MDW18:18Chicago Midway
£480
Find similar

Virgin Atlantic flights from Chicago to United Kingdom

Our best Virgin Atlantic deals on Chicago to United Kingdom flight tickets
Virgin Atlantic
24 Nov
MDW10:47Chicago Midway
14h 03m
2 stops
LHR06:50London Heathrow
5 Dec
LHR10:00London Heathrow
19h 47m
2 stops
MDW23:47Chicago Midway
£483
Find similar
Virgin Atlantic
26 Nov
MDW09:34Chicago Midway
15h 16m
2 stops
LHR06:50London Heathrow
3 Dec
LHR11:45London Heathrow
18h 02m
2 stops
MDW23:47Chicago Midway
£484
Find similar
Virgin Atlantic
14 Jan
MDW11:21Chicago Midway
18h 19m
1 stop
LHR11:40London Heathrow
21 Jan
LHR06:30London Heathrow
16h 59m
2 stops
MDW17:29Chicago Midway
£484
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 22 November 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

Sun 11/1

18:30-23:10

2 stops22h 40m

Glasgow Intl

Sat 17/1

22:30-17:20

2 stops24h 50m

£343

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Thu 8/1

18:30-22:30

2 stops22h 00m

Edinburgh Turnhouse

Tue 13/1

08:40-17:20

2 stops14h 40m

£344

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sun 11/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Sat 17/1

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

£371

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Sun 8/3

20:20-20:05

2 stops18h 45m

Manchester

Thu 12/3

10:10-17:45

1 stop12h 35m

£422

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 22/1

19:20-21:40

1 stop20h 20m

London Heathrow

Tue 10/2

15:35-16:45

2 stops31h 10m

£427

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Sun 7/12

16:10-08:40

1 stop34h 30m

London City

Tue 16/12

09:15-16:20

1 stop13h 05m

£475

ChicagoLondon

MDW - LHR

MDWLHR

Chicago Midway

Wed 3/12

12:50-06:25

1 stop11h 35m

London Heathrow

Wed 10/12

06:30-16:34

2 stops16h 04m

£478

ChicagoLondon

MDW - LHR

MDWLHR

Chicago Midway

Tue 2/12

12:50-07:50

1 stop13h 00m

London Heathrow

Tue 9/12

08:40-18:18

2 stops15h 38m

£480

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 14/1

18:50-12:55

1 stop12h 05m

London City

Mon 19/1

17:50-16:20

1 stop28h 30m

£481

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 £497, 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 £501.

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 £522. 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 £715.

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 £575. Try not to purchase tickets at midday because they tend to be around £713. 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 £607 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 £536 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 37% 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

£304

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 £304. The best return flight deal from Chicago to United Kingdom found on momondo in the last 72 hours is £500.
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 £348Free CancellationRating
7.0
581 reviews
Search Icelandair flights
LufthansaPriceFrom £368Free CancellationRating
6.8
7,581 reviews
Search Lufthansa flights
British AirwaysPriceFrom £394Free CancellationRating
6.7
7,535 reviews
Search British Airways flights
American AirlinesPriceFrom £396Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
FinnairPriceFrom £425Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
Aer LingusPriceFrom £432Free CancellationRating
7.2
1,378 reviews
Search Aer Lingus flights
IberiaPriceFrom £458Free CancellationRating
7.0
3,032 reviews
Search Iberia flights
United AirlinesPriceFrom £474Free CancellationRating
7.4
9,036 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £499Free CancellationRating
7.5
674 reviews
Search Virgin Atlantic 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 £34
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Flights to Birminghamfrom £31
Flights to Edinburghfrom £33
Flights to Belfastfrom £30
Flights to Glasgowfrom £30
Flights to Bristolfrom £31
Flights to Newcastle upon Tynefrom £31
Flights to Aberdeenfrom £44
Flights to Liverpoolfrom £31
Flights to Leedsfrom £40
Flights to Invernessfrom £37