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Cheap flights from Chicago to the United Kingdom from £140

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 18/11. 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

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Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£357Icelandair
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Wed, 14 Jan - Wed, 21 Jan
Multiple Airlines Logo
18:30 - 19:50ORD-EDI
19h 20m2 stops
Multiple Airlines Logo
08:40 - 17:20EDI-ORD
14h 40m2 stops
£363Multiple Airlines
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Tue, 6 Jan - Tue, 13 Jan
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£369Icelandair
Find Deal
Sun, 11 Jan - Sat, 17 Jan
Multiple Airlines Logo
18:30 - 20:15ORD-EDI
19h 45m2 stops
Multiple Airlines Logo
06:45 - 17:20EDI-ORD
16h 35m2 stops
£369Multiple Airlines
Find Deal
Mon, 8 Dec - Fri, 12 Dec
TAP AIR PORTUGAL Logo
19:10 - 16:15ORD-MAN
15h 05m1 stop
TAP AIR PORTUGAL Logo
17:10 - 14:45MAN-ORD
27h 35m1 stop
£379TAP AIR PORTUGAL
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Wed, 3 Dec - Sat, 13 Dec
TAP AIR PORTUGAL Logo
20:15 - 10:35ORD-MAN
32h 20m1 stop
TAP AIR PORTUGAL Logo
17:10 - 14:45MAN-ORD
27h 35m1 stop
£385TAP AIR PORTUGAL
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Fri, 28 Nov - Sat, 13 Dec
Scandinavian Airlines Logo
10:24 - 09:30ORD-MAN
17h 06m2 stops
Scandinavian Airlines Logo
20:55 - 16:45MAN-ORD
25h 50m2 stops
£395Scandinavian Airlines
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Sun, 11 Jan - Fri, 16 Jan
Scandinavian Airlines Logo
07:05 - 18:35ORD-MAN
29h 30m2 stops
Scandinavian Airlines Logo
10:10 - 16:45MAN-ORD
12h 35m1 stop
£399Scandinavian Airlines
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Sat, 7 Feb - Thu, 19 Feb
Aer Lingus Logo
15:50 - 07:50ORD-EDI
10h 00m1 stop
Aer Lingus Logo
12:00 - 17:55EDI-ORD
11h 55m1 stop
£432Aer Lingus
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Sun, 30 Nov - Thu, 4 Dec
Iberia Logo
17:40 - 14:05ORD-LCY
14h 25m1 stop
Iberia Logo
07:50 - 14:55LCY-ORD
13h 05m1 stop
£456Iberia
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Tue, 2 Dec - Wed, 10 Dec

British Airways flights from Chicago to United Kingdom

Our best British Airways deals on Chicago to United Kingdom flight tickets
British Airways
16 Nov
ORD17:10Chicago O'Hare Intl
7h 45m
LHR06:55London Heathrow
25 Nov
LHR11:00London Heathrow
8h 50m
ORD13:50Chicago O'Hare Intl
£432
Find similar
British Airways
1 Dec
ORD20:40Chicago O'Hare Intl
7h 45m
LHR10:25London Heathrow
9 Dec
LHR15:45London Heathrow
9h 00m
ORD18:45Chicago O'Hare Intl
£438
Find similar
British Airways
3 Mar
ORD17:10Chicago O'Hare Intl
7h 45m
LHR06:55London Heathrow
10 Mar
LHR12:35London Heathrow
8h 50m
ORD16:25Chicago O'Hare Intl
£444
Find similar

Delta flights from Chicago to United Kingdom

Our best Delta deals on Chicago to United Kingdom flight tickets
Delta
25 Nov
ORD18:15Chicago O'Hare Intl
11h 25m
1 stop
LHR11:40London Heathrow
3 Dec
LHR08:55London Heathrow
12h 15m
1 stop
ORD15:10Chicago O'Hare Intl
£437
Find similar
Delta
16 Nov
ORD13:29Chicago O'Hare Intl
10h 56m
1 stop
LHR06:25London Heathrow
25 Nov
LHR06:20London Heathrow
14h 50m
1 stop
ORD15:10Chicago O'Hare Intl
£438
Find similar
Delta
16 Nov
ORD13:29Chicago O'Hare Intl
13h 31m
1 stop
LHR09:00London Heathrow
25 Nov
LHR08:55London Heathrow
12h 15m
1 stop
ORD15:10Chicago 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 14 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

Wed 14/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Wed 21/1

12:35-17:20

1 stop10h 45m

£357

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Tue 6/1

18:30-19:50

2 stops19h 20m

Edinburgh Turnhouse

Tue 13/1

08:40-17:20

2 stops14h 40m

£363

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

£369

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Mon 8/12

18:30-20:15

2 stops19h 45m

Edinburgh Turnhouse

Fri 12/12

06:45-17:20

2 stops16h 35m

£369

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Wed 3/12

19:10-16:15

1 stop15h 05m

Manchester

Sat 13/12

17:10-14:45

1 stop27h 35m

£379

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Fri 28/11

20:15-10:35

1 stop32h 20m

Manchester

Sat 13/12

17:10-14:45

1 stop27h 35m

£385

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Sun 11/1

10:24-09:30

2 stops17h 06m

Manchester

Fri 16/1

20:55-16:45

2 stops25h 50m

£395

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Sat 7/2

07:05-18:35

2 stops29h 30m

Manchester

Thu 19/2

10:10-16:45

1 stop12h 35m

£399

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Sun 30/11

15:50-07:50

1 stop10h 00m

Edinburgh Turnhouse

Thu 4/12

12:00-17:55

1 stop11h 55m

£432

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Tue 2/12

17:40-14:05

1 stop14h 25m

London City

Wed 10/12

07:50-14:55

1 stop13h 05m

£456

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 £495, 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 £498.

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 £519. 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 £711.

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 £572. Try not to purchase tickets at midday because they tend to be around £709. 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 £604 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 £533 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

£303

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 £303. The best return flight deal from Chicago to United Kingdom found on momondo in the last 72 hours is £497.
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 £346Free CancellationRating
7.1
578 reviews
Search Icelandair flights
LufthansaPriceFrom £366Free CancellationRating
6.8
7,572 reviews
Search Lufthansa flights
British AirwaysPriceFrom £392Free CancellationRating
6.7
7,521 reviews
Search British Airways flights
American AirlinesPriceFrom £393Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
FinnairPriceFrom £422Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
Aer LingusPriceFrom £430Free CancellationRating
7.2
1,370 reviews
Search Aer Lingus flights
IberiaPriceFrom £455Free CancellationRating
7.0
3,012 reviews
Search Iberia flights
United AirlinesPriceFrom £472Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £496Free CancellationRating
7.5
673 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 £32
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Flights to Birminghamfrom £30
Flights to Edinburghfrom £30
Flights to Belfastfrom £30
Flights to Glasgowfrom £30
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Flights to Newcastle upon Tynefrom £30
Flights to Aberdeenfrom £41
Flights to Liverpoolfrom £40
Flights to Leedsfrom £50
Flights to Invernessfrom £33