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Cheap flights from Chicago to London Heathrow Airport from £159

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 London Heathrow Airport departing on 14/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago to London

Cheap return flights

These are some of the best return flight deals from Chicago to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Chicago to London.

Cheap last-minute flights

Planning a quick getaway from Chicago to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Chicago to London

Find recent round-trip train or bus tickets from Chicago to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
19:10 - 18:30ORD-LHR
17h 20m2 stops
19:30 - 16:50LHR-ORD
26h 20m1 stop
£467Scandinavian Airlines
Find Deal
Fri, 7 Mar - Sun, 16 Mar
20:25 - 17:30ORD-LHR
15h 05m1 stop
08:15 - 09:18LHR-ORD
31h 03m2 stops
£468TAP AIR PORTUGAL
Find Deal
Sun, 8 Dec - Tue, 10 Dec
18:30 - 19:30ORD-LHR
19h 00m1 stop
12:15 - 17:20LHR-ORD
11h 05m1 stop
£472Icelandair
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Tue, 7 Jan - Wed, 22 Jan
18:30 - 10:50ORD-LHR
10h 20m1 stop
12:15 - 17:20LHR-ORD
11h 05m1 stop
£476Icelandair
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Mon, 2 Dec - Tue, 10 Dec
21:15 - 11:05ORD-LHR
7h 50mdirect
09:30 - 17:25LHR-ORD
13h 55m1 stop
£479Finnair
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Mon, 21 Apr - Tue, 29 Apr
20:30 - 10:20ORD-LHR
7h 50mdirect
07:30 - 17:25LHR-ORD
15h 55m1 stop
£483Finnair
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Mon, 21 Apr - Thu, 1 May
17:00 - 06:50ORD-LHR
7h 50mdirect
11:00 - 13:55LHR-ORD
8h 55mdirect
£492British Airways
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Wed, 8 Jan - Tue, 14 Jan
22:00 - 11:40ORD-LHR
7h 40mdirect
14:10 - 17:00LHR-ORD
8h 50mdirect
£512Iberia
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Mon, 6 Jan - Fri, 24 Jan
22:00 - 11:40ORD-LHR
7h 40mdirect
11:55 - 14:45LHR-ORD
8h 50mdirect
£513British Airways
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Tue, 7 Jan - Thu, 16 Jan
23:05 - 11:40ORD-LHR
7h 35mdirect
08:40 - 17:45LHR-ORD
14h 05m1 stop
£521Iberia
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Wed, 19 Mar - Fri, 28 Mar
18:30 - 19:30ORD-LHR
19h 00m1 stop
£159Icelandair
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Tue, 14 Jan
18:30 - 10:50ORD-LHR
10h 20m1 stop
£163Icelandair
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Mon, 20 Jan
19:15 - 21:40ORD-LHR
20h 25m1 stop
£286Scandinavian Airlines
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Mon, 14 Apr
19:10 - 16:25ORD-LHR
15h 15m2 stops
£287Scandinavian Airlines
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Mon, 6 Jan
17:00 - 06:50ORD-LHR
7h 50mdirect
£308Finnair
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Sun, 19 Jan
21:45 - 11:30ORD-LHR
7h 45mdirect
£308Finnair
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Sun, 8 Dec
21:45 - 11:30ORD-LHR
7h 45mdirect
£312British Airways
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Tue, 7 Jan
14:52 - 09:20ORD-LHR
12h 28m1 stop
£316Iberia
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Wed, 12 Feb
20:30 - 11:15ORD-LHR
32h 45m1 stop
£334British Airways
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Sat, 23 Nov
21:45 - 11:30ORD-LHR
7h 45mdirect
£351Iberia
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Thu, 28 Nov
20:25 - 22:40ORD-LHR
20h 15m1 stop
19:55 - 15:30LHR-ORD
25h 35m1 stop
£413TAP AIR PORTUGAL
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Sun, 17 Nov - Thu, 21 Nov
20:25 - 22:40ORD-LHR
20h 15m1 stop
16:30 - 15:30LHR-ORD
29h 00m1 stop
£414TAP AIR PORTUGAL
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Sun, 17 Nov - Thu, 21 Nov
18:30 - 19:30ORD-LHR
19h 00m1 stop
20:40 - 17:20LHR-ORD
26h 40m1 stop
£461Icelandair
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Mon, 18 Nov - Mon, 25 Nov
22:05 - 11:40ORD-LHR
7h 35mdirect
06:15 - 14:30LHR-ORD
14h 15m1 stop
£488British Airways
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Mon, 18 Nov - Thu, 28 Nov
22:05 - 11:40ORD-LHR
7h 35mdirect
07:00 - 14:30LHR-ORD
13h 30m1 stop
£490British Airways
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Tue, 19 Nov - Tue, 26 Nov
18:30 - 19:30ORD-LHR
19h 00m1 stop
20:40 - 17:20LHR-ORD
26h 40m1 stop
£498Icelandair
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Mon, 18 Nov - Mon, 25 Nov
22:05 - 11:40ORD-LHR
7h 35mdirect
14:10 - 17:00LHR-ORD
8h 50mdirect
£499Iberia
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Tue, 19 Nov - Tue, 26 Nov
22:05 - 11:40ORD-LHR
7h 35mdirect
14:10 - 17:00LHR-ORD
8h 50mdirect
£503Iberia
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Mon, 18 Nov - Tue, 26 Nov
16:35 - 08:35ORD-LHR
10h 00m1 stop
11:55 - 14:45LHR-ORD
8h 50mdirect
£504Finnair
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Wed, 20 Nov - Wed, 4 Dec
16:35 - 10:25ORD-LHR
11h 50m1 stop
11:55 - 14:45LHR-ORD
8h 50mdirect
£506Finnair
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Mon, 18 Nov - Wed, 27 Nov
22:05 - 11:40ORD-LHR
7h 35mdirect
14:10 - 17:00LHR-ORD
8h 50mdirect
£488Iberia
Find Deal
Wed, 4 Dec - Fri, 13 Dec
18:35 - 08:15ORD-LHR
7h 40mdirect
15:45 - 18:45LHR-ORD
9h 00mdirect
£489Iberia
Find Deal
Wed, 22 Jan - Wed, 29 Jan
22:05 - 11:40ORD-LHR
7h 35mdirect
15:45 - 18:45LHR-ORD
9h 00mdirect
£491Iberia
Find Deal
Wed, 4 Dec - Tue, 10 Dec
17:00 - 06:50ORD-LHR
7h 50mdirect
11:00 - 13:55LHR-ORD
8h 55mdirect
£492British Airways
Find Deal
Wed, 8 Jan - Tue, 14 Jan
21:45 - 11:30ORD-LHR
7h 45mdirect
11:00 - 13:55LHR-ORD
8h 55mdirect
£493British Airways
Find Deal
Mon, 13 Jan - Wed, 22 Jan
22:05 - 11:40ORD-LHR
7h 35mdirect
11:55 - 14:45LHR-ORD
8h 50mdirect
£498Finnair
Find Deal
Wed, 4 Dec - Wed, 11 Dec
21:10 - 11:15ORD-LHR
8h 05mdirect
13:35 - 17:00LHR-ORD
9h 25mdirect
£499United Airlines
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Wed, 15 Jan - Tue, 21 Jan
17:50 - 07:55ORD-LHR
8h 05mdirect
10:25 - 13:50LHR-ORD
9h 25mdirect
£501United Airlines
Find Deal
Mon, 2 Dec - Tue, 10 Dec
22:05 - 11:40ORD-LHR
7h 35mdirect
11:55 - 14:45LHR-ORD
8h 50mdirect
£502Finnair
Find Deal
Mon, 2 Dec - Tue, 10 Dec
21:10 - 11:15ORD-LHR
8h 05mdirect
10:25 - 13:50LHR-ORD
9h 25mdirect
£651Lufthansa
Find Deal
Sun, 8 Dec - Fri, 13 Dec

Scandinavian Airlines flights from Chicago to London Heathrow Airport

Our best Scandinavian Airlines deals on Chicago to London Heathrow Airport flight tickets
Scandinavian Airlines
7 Mar
ORD19:10Chicago O'Hare Intl
17h 20m
2 stops
LHR18:30London Heathrow
16 Mar
LHR19:30London Heathrow
26h 20m
1 stop
ORD16:50Chicago O'Hare Intl
Scandinavian Airlines
9 Jan
ORD19:10Chicago O'Hare Intl
17h 40m
2 stops
LHR18:50London Heathrow
12 Jan
LHR10:35London Heathrow
35h 15m
2 stops
ORD15:50Chicago O'Hare Intl
Scandinavian Airlines
6 Mar
ORD19:10Chicago O'Hare Intl
17h 40m
2 stops
LHR18:50London Heathrow
9 Mar
LHR19:30London Heathrow
26h 20m
1 stop
ORD16:50Chicago O'Hare Intl

TAP AIR PORTUGAL flights from Chicago to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on Chicago to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
8 Dec
ORD20:25Chicago O'Hare Intl
15h 05m
1 stop
LHR17:30London Heathrow
10 Dec
LHR08:15London Heathrow
31h 03m
2 stops
ORD09:18Chicago O'Hare Intl
TAP AIR PORTUGAL
8 Dec
ORD20:25Chicago O'Hare Intl
20h 15m
1 stop
LHR22:40London Heathrow
10 Dec
LHR08:15London Heathrow
31h 03m
2 stops
ORD09:18Chicago O'Hare Intl
TAP AIR PORTUGAL
8 Dec
ORD20:25Chicago O'Hare Intl
15h 05m
1 stop
LHR17:30London Heathrow
10 Dec
LHR08:15London Heathrow
31h 03m
2 stops
ORD09:18Chicago O'Hare Intl

How to get the cheapest flight ticket from Chicago to London Heathrow Airport

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 typical price of a round-trip flight between Chicago and London Heathrow Airport?

What is the cheapest month to fly from Chicago to London Heathrow Airport?

February. The cheapest time of year to fly to London Heathrow Airport from Chicago is February. The most expensive is June.

What is the cheapest day to depart Chicago for London Heathrow Airport?

Monday. The cheapest day of the week is usually Monday. The most expensive is usually Sunday.

When is the cheapest time to fly from Chicago to London Heathrow Airport?

In the morning. Chicago to London Heathrow Airport flights are approximately 26% more expensive at midday than in the morning

What is the cheapest airline that flies to London Heathrow Airport from Chicago?

Scandinavian Airlines. Scandinavian Airlines, Iberia, and Aer Lingus are the most popular carriers operating from Chicago to London Heathrow Airport

How far in advance should you book Chicago to London Heathrow Airport flights?

24 days before. The cheapest time to buy a flight from Chicago to London Heathrow Airport is approximately 24 days to departure

How many flights depart from Chicago to London Heathrow Airport on average per day?

As of November 2024, there are 37 flights per week flying from Chicago to London Heathrow Airport. The most common time of day flights depart is 21:00, with 75% of flights taking off in the evening.

How many flights depart from Chicago to London Heathrow Airport on average per week?

The number of flights available between Chicago and London Heathrow Airport is 261 per week as of November 2024. The most frequent departure day is Monday, with 15% of weekly flights leaving on this day.

Can stopping save me money on Chicago to London Heathrow Airport flights?

You could potentially save up to 48% on your flight if you consider stops on a Chicago to London Heathrow Airport flight.

How have Chicago to London Heathrow Airport flight prices changed over time?

As of November 2024, prices for Chicago to London Heathrow Airport flights are approximately 26% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago to London Heathrow Airport (CHI to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to London Heathrow Airport

Best price found

£159

Fastest flight time

7h 35m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Chicago in the past 72 hours is £159. The best return flight deal from Chicago to London Heathrow Airport found on momondo in the last 72 hours is £467.
The fastest flight from Chicago to London Heathrow Airport takes 7h 35m
Direct flights go from Chicago to London Heathrow Airport every day.

  • How far is Chicago to London Heathrow by plane?

    A flight from Chicago to London Heathrow will travel around 3933.5 mi. 7h 35m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Chicago to London Heathrow Airport?

    Prices for flights from Chicago to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from Chicago to London Heathrow Airport?

  • How old do you have to be to fly from Chicago to London Heathrow Airport?

    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 London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Chicago to London Heathrow Airport?

  • What is the most popular airline from Chicago to London Heathrow Airport?


Best airlines flying from Chicago to London Heathrow Airport

Compare and see reviews for airlines that fly from Chicago to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom £321Free CancellationRating
6.8
7,165 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom £343Free CancellationRating
7.3
1,303 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom £377Free CancellationRating
7.7
1,304 reviews
Search Finnair flights
American AirlinesPriceFrom £405Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Aer LingusPriceFrom £469Free CancellationRating
7.1
1,085 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £492Free CancellationRating
6.6
6,836 reviews
Search British Airways flights
IberiaPriceFrom £495Free CancellationRating
7.0
2,664 reviews
Search Iberia flights
United AirlinesPriceFrom £533Free CancellationRating
7.4
9,193 reviews
Search United Airlines flights
  • Finnair Flights From Chicago to London Heathrow Airport

    Finnair is one of the most popular airlines flying from Chicago to London Heathrow Airport, operating 27 flights/week on average for this route. A good Finnair flight deal for Chicago to London Heathrow Airport starts from £478 round-trip, up to an average price of £942. Our users have rated Finnair at 7.7/10.

  • United Airlines Flights From Chicago to London Heathrow Airport

    The best United Airlines deal for Chicago to London Heathrow Airport flight tickets found on momondo in the last 72 hours was £676, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at £942 round-trip. United Airlines operates 14 flights out of Chicago into London Heathrow Airport in an average week, so prices vary by time and availability. 9,193 United Airlines reviews by users on momondo have scored the airline at 7.4/10.


Why use momondo?

Why should I use momondo to find a flight deal from Chicago to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to London. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to London with flexible booking policies on momondo?

Flights from Chicago to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to London?

Once all potential Chicago to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to London 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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