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Cheap flights from Chicago O'Hare Intl Airport to the United Kingdom from £167

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 O'Hare Intl Airport to the United Kingdom departing on 9/10. 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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Find the cheapest flights from Chicago O'Hare Intl Airport to the United Kingdom

Cheap return flights

TAP AIR PORTUGAL Logo
20:25 - 16:15ORD-MAN
13h 50m1 stop
TAP AIR PORTUGAL Logo
17:10 - 14:45MAN-ORD
27h 35m1 stop
£301TAP AIR PORTUGAL
Find Deal
Sun, 9 Nov - Sat, 15 Nov
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£343Icelandair
Find Deal
Thu, 15 Jan - Sun, 18 Jan
Icelandair Logo
18:30 - 10:45ORD-MAN
10h 15m1 stop
Icelandair Logo
11:55 - 18:20MAN-ORD
11h 25m1 stop
£348Icelandair
Find Deal
Fri, 27 Feb - Sun, 15 Mar
United Airlines Logo
16:00 - 06:20ORD-LHR
8h 20mdirect
United Airlines Logo
06:50 - 12:05LHR-ORD
11h 15m1 stop
£373United Airlines
Find Deal
Tue, 30 Sep - Tue, 21 Oct
United Airlines Logo
20:18 - 09:40ORD-LHR
32h 22m1 stop
United Airlines Logo
13:25 - 08:00LHR-ORD
24h 35m1 stop
£375United Airlines
Find Deal
Sat, 1 Nov - Wed, 26 Nov
British Airways Logo
22:45 - 11:35ORD-LHR
7h 50mdirect
British Airways Logo
11:00 - 13:50LHR-ORD
8h 50mdirect
£377British Airways
Find Deal
Mon, 27 Oct - Wed, 12 Nov
Aer Lingus Logo
15:45 - 08:00ORD-LHR
10h 15m1 stop
Aer Lingus Logo
08:50 - 14:00LHR-ORD
11h 10m1 stop
£391Aer Lingus
Find Deal
Fri, 10 Oct - Tue, 14 Oct
British Airways Logo
17:36 - 06:35ORD-LGW
30h 59m1 stop
British Airways Logo
14:30 - 13:23LGW-ORD
28h 53m1 stop
£411British Airways
Find Deal
Thu, 25 Sep - Wed, 1 Oct
Aer Lingus Logo
21:15 - 13:50ORD-MAN
10h 35m1 stop
Aer Lingus Logo
14:20 - 19:00MAN-ORD
10h 40m1 stop
£417Aer Lingus
Find Deal
Wed, 1 Oct - Tue, 14 Oct
Iberia Logo
16:45 - 14:05ORD-LCY
15h 20m1 stop
Iberia Logo
19:15 - 17:00LCY-ORD
26h 45m1 stop
£425Iberia
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Tue, 3 Mar - Mon, 9 Mar

United Airlines flights from Chicago O'Hare Intl Airport to United Kingdom

Our best United Airlines deals on Chicago O'Hare Intl Airport to United Kingdom flight tickets
United Airlines
30 Sept
ORD16:00Chicago O'Hare Intl
8h 20m
LHR06:20London Heathrow
21 Oct
LHR06:50London Heathrow
11h 15m
1 stop
ORD12:05Chicago O'Hare Intl
£373
Find similar
United Airlines
1 Nov
ORD20:18Chicago O'Hare Intl
32h 22m
1 stop
LHR09:40London Heathrow
26 Nov
LHR13:25London Heathrow
24h 35m
1 stop
ORD08:00Chicago O'Hare Intl
£375
Find similar
United Airlines
27 Sept
ORD20:25Chicago O'Hare Intl
28h 10m
1 stop
LHR06:35London Heathrow
7 Oct
LHR06:50London Heathrow
11h 15m
1 stop
ORD12:05Chicago O'Hare Intl
£377
Find similar

SWISS flights from Chicago O'Hare Intl Airport to United Kingdom

Our best SWISS deals on Chicago O'Hare Intl Airport to United Kingdom flight tickets
SWISS
14 Oct
ORD19:05Chicago O'Hare Intl
16h 45m
1 stop
LGW17:50London Gatwick
21 Oct
LGW18:35London Gatwick
27h 20m
1 stop
ORD15:55Chicago O'Hare Intl
£377
Find similar
SWISS
29 Oct
ORD19:50Chicago O'Hare Intl
17h 00m
1 stop
LGW17:50London Gatwick
3 Nov
LGW18:40London Gatwick
27h 40m
1 stop
ORD16:20Chicago O'Hare Intl
£378
Find similar
SWISS
26 Nov
ORD18:50Chicago O'Hare Intl
17h 00m
1 stop
LGW17:50London Gatwick
3 Dec
LGW18:40London Gatwick
27h 40m
1 stop
ORD16:20Chicago O'Hare Intl
£379
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport 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 16 September 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Sun 9/11

20:25-16:15

1 stop13h 50m

Manchester

Sat 15/11

17:10-14:45

1 stop27h 35m

£301

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Thu 15/1

18:30-09:55

1 stop9h 25m

Glasgow Intl

Sun 18/1

12:35-17:20

1 stop10h 45m

£343

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Fri 27/2

18:30-10:45

1 stop10h 15m

Manchester

Sun 15/3

11:55-18:20

1 stop11h 25m

£348

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 30/9

16:00-06:20

Nonstop8h 20m

London Heathrow

Tue 21/10

06:50-12:05

1 stop11h 15m

£373

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sat 1/11

20:18-09:40

1 stop32h 22m

London Heathrow

Wed 26/11

13:25-08:00

1 stop24h 35m

£375

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 27/10

22:45-11:35

Nonstop7h 50m

London Heathrow

Wed 12/11

11:00-13:50

Nonstop8h 50m

£377

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 10/10

15:45-08:00

1 stop10h 15m

London Heathrow

Tue 14/10

08:50-14:00

1 stop11h 10m

£391

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 25/9

17:36-06:35

1 stop30h 59m

London Gatwick

Wed 1/10

14:30-13:23

1 stop28h 53m

£411

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Wed 1/10

21:15-13:50

1 stop10h 35m

Manchester

Tue 14/10

14:20-19:00

1 stop10h 40m

£417

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Tue 3/3

16:45-14:05

1 stop15h 20m

London City

Mon 9/3

19:15-17:00

1 stop26h 45m

£425

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 O'Hare Intl Airport 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 O'Hare Intl Airport is in April. Flight prices, which tend to average around £476, 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 April, then departing from Chicago O'Hare Intl Airport during the month February is also very affordable. Most momondo users find prices during this month for around £480.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Chicago O'Hare Intl Airport 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 £510. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to United Kingdom for around £649.

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 morning when flights can be purchased for as low as £464. Try not to purchase tickets at midday because they tend to be around £687. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Chicago O'Hare Intl to United Kingdom flight route?

Fly from Chicago O'Hare Intl to London Heathrow for the best Chicago O'Hare Intl - 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 O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £584 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 O'Hare Intl Airport for as low as £511 on momondo.

What cabin class options are available on Chicago O'Hare Intl to United Kingdom flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl 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 O'Hare Intl Airport to United Kingdom flights?

You could potentially save up to 36% on your flight if you consider stops on a Chicago O'Hare Intl Airport to United Kingdom flight.

Cheap Chicago O'Hare Intl Airport to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to United Kingdom

Best price found

£275

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 O'Hare Intl Airport in the past 72 hours is £275. The best return flight deal from Chicago O'Hare Intl Airport to United Kingdom found on momondo in the last 72 hours is £440.
The fastest flight from Chicago O'Hare Intl Airport to United Kingdom takes 7h 40m
Direct flights go from Chicago O'Hare Intl Airport to United Kingdom every day.
There are 2 airports near United Kingdom: London Heathrow (LHR), Edinburgh Turnhouse (EDI)
Search flight deals

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to United Kingdom?

    Prices for flights from Chicago O'Hare Intl Airport to United Kingdom are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to United Kingdom?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to United Kingdom?

Best airlines flying from Chicago O'Hare Intl Airport to United Kingdom

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £349Free CancellationRating
7.0
544 reviews
Search Icelandair flights
LufthansaPriceFrom £354Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
British AirwaysPriceFrom £380Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
American AirlinesPriceFrom £381Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
FinnairPriceFrom £409Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
Aer LingusPriceFrom £422Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights
Virgin AtlanticPriceFrom £426Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
IberiaPriceFrom £441Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
United AirlinesPriceFrom £457Free CancellationRating
7.4
8,929 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. All flights to United Kingdom from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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 can track prices for Chicago to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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