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Cheap flights from Chicago to London Heathrow Airport from $201

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 1/13. 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 round-trip flights

These are some of the best round-trip 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 layovers.

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.
8:25 pm - 9:35 pmORD-LHR
19h 10m1 stop
6:30 pm - 3:30 pmLHR-ORD
27h 00m1 stop
$470TAP AIR PORTUGAL
Find Deal
Sun, Jan 19 - Tue, Jan 21
8:25 pm - 9:35 pmORD-LHR
19h 10m1 stop
6:30 pm - 3:30 pmLHR-ORD
27h 00m1 stop
$476TAP AIR PORTUGAL
Find Deal
Sun, Jan 19 - Tue, Jan 21
7:30 pm - 10:50 amORD-LHR
10h 20m1 stop
9:25 pm - 6:20 pmLHR-ORD
26h 55m1 stop
$562Icelandair
Find Deal
Tue, Mar 18 - Mon, Mar 31
6:30 pm - 10:50 amORD-LHR
10h 20m1 stop
8:40 pm - 5:20 pmLHR-ORD
26h 40m1 stop
$572Icelandair
Find Deal
Tue, Feb 18 - Tue, Feb 25
6:35 pm - 8:15 amORD-LHR
7h 40mnonstop
7:00 am - 2:30 pmLHR-ORD
13h 30m1 stop
$622Iberia
Find Deal
Wed, Feb 12 - Tue, Feb 18
5:55 pm - 7:50 amORD-LHR
7h 55mnonstop
9:30 am - 5:25 pmLHR-ORD
13h 55m1 stop
$631Finnair
Find Deal
Tue, Apr 22 - Tue, Apr 29
7:40 pm - 8:15 amORD-LHR
7h 35mnonstop
9:30 am - 5:25 pmLHR-ORD
13h 55m1 stop
$632Finnair
Find Deal
Sun, Mar 16 - Fri, Apr 4
6:26 pm - 8:15 amORD-LHR
7h 49mnonstop
10:15 am - 2:05 pmLHR-ORD
8h 50mnonstop
$641British Airways
Find Deal
Sun, Mar 2 - Wed, Mar 12
9:56 pm - 11:40 amORD-LHR
7h 44mnonstop
6:15 am - 2:30 pmLHR-ORD
14h 15m1 stop
$642Iberia
Find Deal
Mon, Feb 17 - Wed, Mar 5
7:10 pm - 9:05 amORD-LHR
7h 55mnonstop
1:10 pm - 3:55 pmLHR-ORD
8h 45mnonstop
$644British Airways
Find Deal
Tue, Apr 22 - Wed, May 7
6:30 pm - 10:50 amORD-LHR
10h 20m1 stop
$201Icelandair
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Mon, Jan 13
6:30 pm - 7:30 pmORD-LHR
19h 00m1 stop
$202Icelandair
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Wed, Jan 15
6:30 pm - 10:50 amORD-LHR
10h 20m1 stop
$204Icelandair
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Tue, Jan 14
9:15 pm - 10:55 amORD-LHR
7h 40mnonstop
$384British Airways
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Wed, Apr 30
9:56 pm - 11:40 amORD-LHR
7h 44mnonstop
$388British Airways
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Mon, Mar 3
8:40 pm - 11:25 amORD-LHR
9h 45m1 stop
$395Aer Lingus
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Tue, Mar 18
5:00 pm - 6:50 amORD-LHR
7h 50mnonstop
$397Iberia
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Mon, Feb 17
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
$399Iberia
Find Deal
Wed, Feb 12
9:29 pm - 7:30 amORD-LHR
28h 01m1 stop
$425United Airlines
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Sat, Dec 28
5:50 pm - 7:55 amORD-LHR
8h 05mnonstop
$471United Airlines
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Wed, Jan 1
9:05 pm - 6:40 amORD-LHR
27h 35m1 stop
8:30 am - 11:05 amLHR-ORD
32h 35m1 stop
$934United Airlines
Find Deal
Mon, Dec 23 - Mon, Jan 13
9:02 pm - 12:00 pmORD-LHR
32h 58m1 stop
10:05 am - 7:26 pmLHR-ORD
15h 21m1 stop
$940British Airways
Find Deal
Mon, Dec 23 - Wed, Jan 29
3:55 pm - 4:50 pmORD-LHR
18h 55m1 stop
12:10 pm - 7:15 pmLHR-ORD
13h 05m1 stop
$1,051Aer Lingus
Find Deal
Thu, Dec 19 - Wed, Jan 22
3:55 pm - 4:50 pmORD-LHR
18h 55m1 stop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$1,103Aer Lingus
Find Deal
Thu, Dec 19 - Wed, Jan 22
10:00 pm - 11:40 amORD-LHR
7h 40mnonstop
6:15 am - 2:30 pmLHR-ORD
14h 15m1 stop
$1,197Iberia
Find Deal
Mon, Dec 23 - Wed, Jan 29
10:00 pm - 11:40 amORD-LHR
7h 40mnonstop
3:45 pm - 6:45 pmLHR-ORD
9h 00mnonstop
$1,217Finnair
Find Deal
Mon, Dec 23 - Tue, Jan 28
4:00 pm - 10:00 amORD-LHR
12h 00m1 stop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$1,222American Airlines
Find Deal
Sun, Dec 22 - Wed, Jan 29
10:00 pm - 11:40 amORD-LHR
7h 40mnonstop
8:20 am - 7:20 pmLHR-ORD
17h 00m1 stop
$1,228Finnair
Find Deal
Mon, Dec 23 - Thu, Jan 30
6:25 pm - 8:15 amORD-LHR
7h 50mnonstop
3:45 pm - 6:45 pmLHR-ORD
9h 00mnonstop
$1,237Iberia
Find Deal
Thu, Dec 19 - Wed, Jan 22
4:01 pm - 10:00 amORD-LHR
11h 59m1 stop
10:15 am - 5:28 pmLHR-ORD
13h 13m1 stop
$1,306American Airlines
Find Deal
Thu, Dec 19 - Sat, Jan 11
10:45 pm - 11:30 amORD-LHR
7h 45mnonstop
3:45 pm - 7:45 pmLHR-ORD
9h 00mnonstop
$629British Airways
Find Deal
Wed, Mar 12 - Tue, Mar 18
5:00 pm - 6:50 amORD-LHR
7h 50mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$632British Airways
Find Deal
Sun, Jan 12 - Tue, Jan 21
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$633British Airways
Find Deal
Tue, Feb 11 - Tue, Feb 18
8:30 pm - 10:20 amORD-LHR
7h 50mnonstop
2:25 pm - 5:00 pmLHR-ORD
8h 35mnonstop
$643Iberia
Find Deal
Tue, Apr 1 - Wed, Apr 30
5:00 pm - 6:50 amORD-LHR
7h 50mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$650Finnair
Find Deal
Sun, Jan 12 - Tue, Jan 21
5:00 pm - 6:50 amORD-LHR
7h 50mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$651Finnair
Find Deal
Sun, Jan 12 - Tue, Jan 21
10:00 pm - 11:40 amORD-LHR
7h 40mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$656Iberia
Find Deal
Wed, Jan 15 - Wed, Jan 22
5:50 pm - 7:55 amORD-LHR
8h 05mnonstop
1:35 pm - 5:00 pmLHR-ORD
9h 25mnonstop
$667United Airlines
Find Deal
Wed, Jan 8 - Tue, Feb 4
5:50 pm - 7:55 amORD-LHR
8h 05mnonstop
10:25 am - 1:50 pmLHR-ORD
9h 25mnonstop
$668United Airlines
Find Deal
Sun, Jan 12 - Tue, Jan 21
10:55 pm - 12:45 pmORD-LHR
7h 50mnonstop
1:10 pm - 3:55 pmLHR-ORD
8h 45mnonstop
$800American Airlines
Find Deal
Wed, May 14 - Sat, May 31

British Airways flights from Chicago to London Heathrow Airport

Our best British Airways deals on Chicago to London Heathrow Airport flight tickets
British Airways
Mar 2
ORD6:26 pmChicago O'Hare Intl
7h 49m
LHR8:15 amLondon Heathrow
Mar 12
LHR10:15 amLondon Heathrow
8h 50m
ORD2:05 pmChicago O'Hare Intl
British Airways
Apr 22
ORD7:10 pmChicago O'Hare Intl
7h 55m
LHR9:05 amLondon Heathrow
May 7
LHR1:10 pmLondon Heathrow
8h 45m
ORD3:55 pmChicago O'Hare Intl
British Airways
Dec 28
ORD8:55 pmChicago O'Hare Intl
28h 00m
1 stop
LHR6:55 amLondon Heathrow
Jan 10
LHR6:00 pmLondon Heathrow
22h 47m
1 stop
ORD10:47 amChicago O'Hare Intl

KLM flights from Chicago to London Heathrow Airport

Our best KLM deals on Chicago to London Heathrow Airport flight tickets
KLM
Jan 12
MDW2:08 pmChicago Midway
10h 42m
1 stop
LHR6:50 amLondon Heathrow
Jan 21
LHR12:20 pmLondon Heathrow
11h 54m
1 stop
MDW6:14 pmChicago Midway
KLM
Mar 2
MDW2:08 pmChicago Midway
10h 42m
1 stop
LHR6:50 amLondon Heathrow
Mar 25
LHR9:10 amLondon Heathrow
14h 01m
1 stop
MDW6:11 pmChicago Midway
KLM
Jan 21
MDW2:08 pmChicago Midway
10h 42m
1 stop
LHR6:50 amLondon Heathrow
Feb 12
LHR12:20 pmLondon Heathrow
11h 51m
1 stop
MDW6:11 pmChicago Midway

See travel insights to London from

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 to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Chicago, with most prices found around $657. If you’re not able to fly to London Heathrow Airport in February, then September is your next best option. Flight prices from Chicago to London Heathrow Airport during September average around $679.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $751. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $849.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Chicago to London Heathrow Airport in the morning for as low as $776. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $822.

What is the cheapest Chicago to London Heathrow flight route?

Fly from Chicago O'Hare Intl to London Heathrow for the best Chicago - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

We recommend purchasing flights from Chicago to London Heathrow Airport 8 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to London Heathrow Airport for $801. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $669.

What cabin class options are available on Chicago to London Heathrow flights?

There are 4 cabin classes available to choose from on Chicago to London Heathrow 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 London Heathrow Airport flights?

You could potentially save up to 47% 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 December 2024, prices for Chicago to London Heathrow Airport flights are approximately 46% 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 round-trip 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

$201

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 $201. The best round-trip flight deal from Chicago to London Heathrow Airport found on momondo in the last 72 hours is $470.
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?

    There are 3933.5 mi between Chicago and London Heathrow. A reasonable flight in good conditions will take 7h 35m.

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

    Prices for flights from Chicago to London Heathrow Airport refresh daily.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 you'll need for your trip to London Heathrow Airport 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 London Heathrow Airport. 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 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
Scandinavian AirlinesPriceFrom $381Free CancellationRating
7.3
1,309 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $451Free CancellationRating
8.0
8,604 reviews
Search Delta flights
IcelandairPriceFrom $471Free CancellationRating
7.1
510 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $506Free CancellationRating
7.1
1,877 reviews
Search TAP AIR PORTUGAL flights
JetBluePriceFrom $516Free CancellationRating
7.4
3,279 reviews
Search JetBlue flights
Air CanadaPriceFrom $554Free CancellationRating
7.0
8,382 reviews
Search Air Canada flights
FinnairPriceFrom $567Free CancellationRating
7.7
1,285 reviews
Search Finnair flights
Virgin AtlanticPriceFrom $570Free CancellationRating
7.5
668 reviews
Search Virgin Atlantic flights
SWISSPriceFrom $581Free CancellationRating
7.6
1,606 reviews
Search SWISS flights
IberiaPriceFrom $584Free CancellationRating
7.0
2,656 reviews
Search Iberia flights
  • Alaska Airlines Flights From Chicago to London Heathrow Airport

    Alaska Airlines operates around 24 flights from Chicago to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been $1,026, but momondo users have found Alaska Airlines deals from Chicago to London Heathrow Airport from as low as $809 round-trip. Alaska Airlines has been scored 8.0/10 in 9,554 reviews.

  • Finnair Flights From Chicago to London Heathrow Airport

    Finnair (7.7/10 from 1,285 reviews) operates around 24 flights from Chicago to London Heathrow Airport in any given week. The average Finnair airfare for this route is around $790, with deals from around $567 rare but found on momondo. Referenced prices are for round-trip Chicago to London Heathrow Airport flight searches in the last 72 hours.


Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Chicago.

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?

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 London.

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

If you are not ready to book a flight from Chicago to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.


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