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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 22/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:30 - 20:15ORD-EDI
19h 45m2 stops
Multiple Airlines Logo
22:55 - 17:20EDI-ORD
24h 25m2 stops
£334Multiple Airlines
Find Deal
Mon, 12 Jan - Fri, 16 Jan
Multiple Airlines Logo
18:30 - 20:15ORD-EDI
19h 45m2 stops
Multiple Airlines Logo
08:40 - 17:20EDI-ORD
14h 40m2 stops
£337Multiple Airlines
Find Deal
Mon, 12 Jan - Tue, 20 Jan
Multiple Airlines Logo
18:30 - 21:00ORD-GLA
20h 30m2 stops
Multiple Airlines Logo
07:45 - 17:20GLA-ORD
15h 35m2 stops
£339Multiple Airlines
Find Deal
Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
18:30 - 17:15ORD-EDI
16h 45m2 stops
Multiple Airlines Logo
07:25 - 17:20EDI-ORD
15h 55m2 stops
£339Multiple Airlines
Find Deal
Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
18:30 - 18:25ORD-EDI
17h 55m2 stops
Multiple Airlines Logo
08:40 - 17:20EDI-ORD
14h 40m2 stops
£340Multiple Airlines
Find Deal
Tue, 13 Jan - Tue, 20 Jan
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£356Icelandair
Find Deal
Sat, 24 Jan - Sat, 31 Jan
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£358Icelandair
Find Deal
Wed, 28 Jan - Fri, 6 Feb
British Airways Logo
16:14 - 13:55ORD-MAN
15h 41m2 stops
British Airways Logo
17:25 - 18:45MAN-ORD
31h 20m1 stop
£425British Airways
Find Deal
Wed, 14 Jan - Wed, 21 Jan
Finnair Logo
17:40 - 07:20ORD-LHR
7h 40mdirect
Finnair Logo
07:30 - 17:50LHR-ORD
16h 20m1 stop
£427Finnair
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Wed, 22 Apr - Wed, 20 May
American Airlines Logo
08:14 - 09:00ORD-LGW
18h 46m1 stop
American Airlines Logo
12:30 - 00:30LGW-ORD
18h 00m2 stops
£430American Airlines
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Wed, 14 Jan - Wed, 21 Jan

TAP AIR PORTUGAL flights from Chicago to United Kingdom

Our best TAP AIR PORTUGAL deals on Chicago to United Kingdom flight tickets
TAP AIR PORTUGAL
9 May
ORD18:15Chicago O'Hare Intl
12h 30m
1 stop
LHR12:45London Heathrow
17 May
LHR06:00London Heathrow
16h 00m
1 stop
ORD16:00Chicago O'Hare Intl
£426
Find similar
TAP AIR PORTUGAL
4 Mar
ORD19:10Chicago O'Hare Intl
13h 55m
1 stop
LGW15:05London Gatwick
14 Mar
LGW10:10London Gatwick
34h 35m
2 stops
ORD15:45Chicago O'Hare Intl
£427
Find similar
TAP AIR PORTUGAL
7 Dec
ORD20:25Chicago O'Hare Intl
13h 20m
1 stop
LGW15:45London Gatwick
16 Dec
LGW21:20London Gatwick
23h 40m
2 stops
ORD15:00Chicago O'Hare Intl
£441
Find similar

Finnair flights from Chicago to United Kingdom

Our best Finnair deals on Chicago to United Kingdom flight tickets
Finnair
22 Apr
ORD17:40Chicago O'Hare Intl
7h 40m
LHR07:20London Heathrow
20 May
LHR07:30London Heathrow
16h 20m
1 stop
ORD17:50Chicago O'Hare Intl
£427
Find similar
Finnair
29 Apr
ORD17:40Chicago O'Hare Intl
7h 40m
LHR07:20London Heathrow
7 May
LHR10:20London Heathrow
13h 30m
1 stop
ORD17:50Chicago O'Hare Intl
£430
Find similar
Finnair
11 Jan
ORD18:25Chicago O'Hare Intl
7h 50m
LHR08:15London Heathrow
21 Jan
LHR14:10London Heathrow
8h 50m
ORD17:00Chicago O'Hare Intl
£436
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 2 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

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Mon 12/1

18:30-20:15

2 stops19h 45m

Edinburgh Turnhouse

Fri 16/1

22:55-17:20

2 stops24h 25m

£334

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Mon 12/1

18:30-20:15

2 stops19h 45m

Edinburgh Turnhouse

Tue 20/1

08:40-17:20

2 stops14h 40m

£337

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 14/1

18:30-21:00

2 stops20h 30m

Glasgow Intl

Wed 21/1

07:45-17:20

2 stops15h 35m

£339

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Wed 14/1

18:30-17:15

2 stops16h 45m

Edinburgh Turnhouse

Wed 21/1

07:25-17:20

2 stops15h 55m

£339

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Tue 13/1

18:30-18:25

2 stops17h 55m

Edinburgh Turnhouse

Tue 20/1

08:40-17:20

2 stops14h 40m

£340

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sat 24/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Sat 31/1

12:35-17:20

1 stop10h 45m

£356

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 28/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Fri 6/2

12:35-17:20

1 stop10h 45m

£358

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Wed 14/1

16:14-13:55

2 stops15h 41m

Manchester

Wed 21/1

17:25-18:45

1 stop31h 20m

£425

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 22/4

17:40-07:20

Nonstop7h 40m

London Heathrow

Wed 20/5

07:30-17:50

1 stop16h 20m

£427

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 14/1

08:14-09:00

1 stop18h 46m

London Gatwick

Wed 21/1

12:30-00:30

2 stops18h 00m

£430

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 £492, 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 £496.

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 £517. 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 £689.

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 £706. 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 £601 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 £534 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

£363

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 £363. The best return flight deal from Chicago to United Kingdom found on momondo in the last 72 hours is £571.
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 £344Free CancellationRating
7.0
584 reviews
Search Icelandair flights
LufthansaPriceFrom £364Free CancellationRating
6.8
7,602 reviews
Search Lufthansa flights
British AirwaysPriceFrom £390Free CancellationRating
6.7
7,549 reviews
Search British Airways flights
American AirlinesPriceFrom £391Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
FinnairPriceFrom £420Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
Aer LingusPriceFrom £428Free CancellationRating
7.2
1,384 reviews
Search Aer Lingus flights
IberiaPriceFrom £453Free CancellationRating
7.0
3,038 reviews
Search Iberia flights
United AirlinesPriceFrom £469Free CancellationRating
7.4
9,062 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £494Free CancellationRating
7.5
675 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
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