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Cheap flights from Chicago to the United Kingdom from £174

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 12/12. 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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Multiple Airlines Logo
18:30 - 20:15ORD-EDI
19h 45m2 stops
Multiple Airlines Logo
22:55 - 17:20EDI-ORD
24h 25m2 stops
£349Multiple Airlines
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Mon, 1 Dec - Fri, 5 Dec
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£354Icelandair
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Sun, 30 Nov - Thu, 4 Dec
Iberia Logo
18:25 - 08:15ORD-LHR
7h 50mdirect
Iberia Logo
10:45 - 14:30LHR-ORD
33h 45m1 stop
£430Iberia
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Tue, 2 Dec - Tue, 9 Dec
Aer Lingus Logo
15:50 - 07:50ORD-GLA
10h 00m1 stop
Aer Lingus Logo
12:00 - 17:55GLA-ORD
11h 55m1 stop
£442Aer Lingus
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Tue, 2 Dec - Tue, 9 Dec
Aer Lingus Logo
15:50 - 08:50ORD-EDI
11h 00m1 stop
Aer Lingus Logo
09:35 - 17:55EDI-ORD
14h 20m1 stop
£442Aer Lingus
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Wed, 26 Nov - Wed, 3 Dec
Iberia Logo
16:45 - 14:05ORD-LCY
15h 20m1 stop
Iberia Logo
19:15 - 15:30LCY-ORD
25h 15m1 stop
£458Iberia
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Wed, 4 Mar - Mon, 9 Mar
British Airways Logo
17:10 - 09:50ORD-GLA
10h 40m1 stop
British Airways Logo
19:10 - 13:50GLA-ORD
24h 40m1 stop
£460British Airways
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Tue, 18 Nov - Tue, 2 Dec
British Airways Logo
21:45 - 14:35ORD-GLA
10h 50m1 stop
British Airways Logo
17:45 - 13:50GLA-ORD
26h 05m1 stop
£461British Airways
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Tue, 18 Nov - Tue, 2 Dec
Lufthansa Logo
22:35 - 17:40ORD-LCY
13h 05m1 stop
Lufthansa Logo
09:50 - 20:05LCY-ORD
16h 15m1 stop
£485Lufthansa
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Mon, 3 Nov - Wed, 12 Nov
Lufthansa Logo
22:35 - 16:40ORD-LCY
12h 05m1 stop
Lufthansa Logo
09:40 - 20:05LCY-ORD
16h 25m1 stop
£496Lufthansa
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Wed, 19 Nov - Thu, 27 Nov

Scandinavian Airlines flights from Chicago to United Kingdom

Our best Scandinavian Airlines deals on Chicago to United Kingdom flight tickets
Scandinavian Airlines
17 Nov
ORD07:10Chicago O'Hare Intl
26h 50m
2 stops
LHR16:00London Heathrow
24 Nov
LHR07:05London Heathrow
15h 40m
2 stops
ORD16:45Chicago O'Hare Intl
£396
Find similar
Scandinavian Airlines
23 Feb
ORD07:30Chicago O'Hare Intl
19h 50m
2 stops
LHR09:20London Heathrow
27 Feb
LHR10:20London Heathrow
12h 25m
1 stop
ORD16:45Chicago O'Hare Intl
£396
Find similar
Scandinavian Airlines
13 Nov
ORD19:20Chicago O'Hare Intl
32h 00m
1 stop
LHR09:20London Heathrow
16 Nov
LHR06:40London Heathrow
16h 05m
2 stops
ORD16:45Chicago O'Hare Intl
£397
Find similar

Virgin Atlantic flights from Chicago to United Kingdom

Our best Virgin Atlantic deals on Chicago to United Kingdom flight tickets
Virgin Atlantic
26 Oct
ORD16:05Chicago O'Hare Intl
11h 55m
1 stop
LHR09:00London Heathrow
4 Nov
LHR09:00London Heathrow
12h 10m
1 stop
ORD15:10Chicago O'Hare Intl
£399
Find similar
Virgin Atlantic
26 Oct
ORD17:51Chicago O'Hare Intl
12h 49m
1 stop
LHR11:40London Heathrow
4 Nov
LHR09:00London Heathrow
12h 10m
1 stop
ORD15:10Chicago O'Hare Intl
£405
Find similar
Virgin Atlantic
17 Nov
MDW13:47Chicago Midway
11h 18m
1 stop
LHR07:05London Heathrow
26 Nov
LHR11:05London Heathrow
13h 13m
1 stop
MDW18:18Chicago Midway
£408
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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 20 October 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 1/12

18:30-20:15

2 stops19h 45m

Edinburgh Turnhouse

Fri 5/12

22:55-17:20

2 stops24h 25m

£349

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Sun 30/11

18:30-09:55

1 stop9h 25m

Glasgow Intl

Thu 4/12

12:35-17:20

1 stop10h 45m

£354

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 2/12

18:25-08:15

Nonstop7h 50m

London Heathrow

Tue 9/12

10:45-14:30

1 stop33h 45m

£430

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 2/12

15:50-07:50

1 stop10h 00m

Glasgow Intl

Tue 9/12

12:00-17:55

1 stop11h 55m

£442

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Wed 26/11

15:50-08:50

1 stop11h 00m

Edinburgh Turnhouse

Wed 3/12

09:35-17:55

1 stop14h 20m

£442

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 4/3

16:45-14:05

1 stop15h 20m

London City

Mon 9/3

19:15-15:30

1 stop25h 15m

£458

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 18/11

17:10-09:50

1 stop10h 40m

Glasgow Intl

Tue 2/12

19:10-13:50

1 stop24h 40m

£460

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 18/11

21:45-14:35

1 stop10h 50m

Glasgow Intl

Tue 2/12

17:45-13:50

1 stop26h 05m

£461

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Mon 3/11

22:35-17:40

1 stop13h 05m

London City

Wed 12/11

09:50-20:05

1 stop16h 15m

£485

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 19/11

22:35-16:40

1 stop12h 05m

London City

Thu 27/11

09:40-20:05

1 stop16h 25m

£496

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 £485, 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 £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 Thursday. Travellers who choose to depart for United Kingdom on a Thursday will often find tickets for as low as £515. 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 £675.

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 evening when flights can be purchased for as low as £567. 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 £592 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 £517 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

£297

Fastest flight time

7h 40m

Direct flights

Every day

Airports in United Kingdom

1 airport
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 £488.
The fastest flight from Chicago to United Kingdom takes 7h 40m
Direct flights go from Chicago to United Kingdom every day.
There is 1 airport near United Kingdom: London Heathrow (LHR)
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 £353Free CancellationRating
7.0
561 reviews
Search Icelandair flights
LufthansaPriceFrom £358Free CancellationRating
6.8
7,507 reviews
Search Lufthansa flights
British AirwaysPriceFrom £385Free CancellationRating
6.7
7,461 reviews
Search British Airways flights
American AirlinesPriceFrom £386Free CancellationRating
7.2
11,023 reviews
Search American Airlines flights
FinnairPriceFrom £414Free CancellationRating
7.6
1,333 reviews
Search Finnair flights
Aer LingusPriceFrom £428Free CancellationRating
7.2
1,348 reviews
Search Aer Lingus flights
IberiaPriceFrom £446Free CancellationRating
7.0
2,996 reviews
Search Iberia flights
United AirlinesPriceFrom £462Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom £487Free CancellationRating
7.5
670 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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Wed 19/11
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Find better results for your trip to the United Kingdom

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Popular flights according to clicks in the last 7 days on momondo
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