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Cheap flights from Chicago to London from $166

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 departing on 2/4. 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.
7:10 pm - 6:30 pmORD-LHR
17h 20m2 stops
5:00 pm - 3:50 pmLHR-ORD
28h 50m1 stop
$370Scandinavian Airlines
Find Deal
Fri, Dec 13 - Sun, Dec 15
8:25 pm - 8:40 pmORD-LGW
18h 15m2 stops
4:35 pm - 3:30 pmLGW-ORD
28h 55m1 stop
$386TAP AIR PORTUGAL
Find Deal
Sun, Nov 17 - Tue, Nov 19
7:10 pm - 2:35 pmORD-LHR
37h 25m2 stops
6:40 am - 4:50 pmLHR-ORD
15h 10m1 stop
$389Scandinavian Airlines
Find Deal
Fri, Mar 7 - Mon, Mar 10
1:54 pm - 7:00 amORD-LHR
11h 06m1 stop
6:10 am - 2:30 pmLHR-ORD
14h 20m1 stop
$471British Airways
Find Deal
Sun, Nov 17 - Tue, Nov 19
6:30 pm - 10:50 amORD-LHR
10h 20m1 stop
12:15 pm - 5:20 pmLHR-ORD
11h 05m1 stop
$487Icelandair
Find Deal
Tue, Nov 19 - Tue, Nov 26
8:33 pm - 7:50 amORD-LHR
29h 17m1 stop
6:15 am - 2:30 pmLHR-ORD
14h 15m1 stop
$492British Airways
Find Deal
Sun, Jan 12 - Wed, Jan 15
6:30 pm - 10:55 amORD-LGW
10h 25m1 stop
11:55 am - 5:20 pmLGW-ORD
11h 25m1 stop
$493Icelandair
Find Deal
Mon, Nov 18 - Wed, Dec 4
10:05 pm - 11:40 amORD-LHR
7h 35mnonstop
7:00 am - 2:30 pmLHR-ORD
13h 30m1 stop
$536Iberia
Find Deal
Tue, Nov 19 - Tue, Nov 26
6:35 pm - 8:15 amORD-LHR
7h 40mnonstop
6:15 am - 2:30 pmLHR-ORD
14h 15m1 stop
$583Iberia
Find Deal
Tue, Dec 3 - Wed, Dec 11
11:41 am - 8:05 amORD-LGW
14h 24m1 stop
12:30 pm - 12:16 amLGW-ORD
17h 46m2 stops
$680American Airlines
Find Deal
Wed, Nov 6 - Sun, Nov 10
11:14 am - 6:00 amORD-LGW
12h 46m1 stop
Tue, Feb 4
10:59 am - 10:00 amORD-LGW
17h 01m1 stop
Mon, Jan 20
6:30 pm - 10:50 amORD-LHR
10h 20m1 stop
$195Icelandair
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Mon, Dec 9
6:30 pm - 10:55 amORD-LGW
10h 25m1 stop
$195Icelandair
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Mon, Dec 9
6:30 pm - 10:55 amORD-LGW
10h 25m1 stop
$202Icelandair
Find Deal
Tue, Nov 12
6:30 pm - 8:15 amORD-LHR
7h 45mnonstop
$377Iberia
Find Deal
Sun, Jan 19
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
$386British Airways
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Mon, Dec 9
9:55 pm - 11:40 amORD-LHR
7h 45mnonstop
$387American Airlines
Find Deal
Mon, Nov 4
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
$390British Airways
Find Deal
Sun, Nov 17
5:45 pm - 10:15 amORD-LGW
11h 30m1 stop
$400Iberia
Find Deal
Tue, Oct 29
6:00 pm - 10:55 pmORD-LHR
22h 55m1 stop
6:30 pm - 4:30 pmLHR-ORD
27h 00m1 stop
$530TAP AIR PORTUGAL
Find Deal
Wed, Oct 23 - Tue, Mar 25
6:00 pm - 2:00 pmORD-LGW
14h 00m1 stop
10:40 am - 4:30 pmLGW-ORD
34h 50m1 stop
$557TAP AIR PORTUGAL
Find Deal
Wed, Oct 23 - Tue, Mar 25
8:35 am - 10:10 pmORD-LHR
7h 35mnonstop
3:45 pm - 7:45 pmLHR-ORD
9h 00mnonstop
$616Iberia
Find Deal
Wed, Oct 23 - Tue, Mar 25
10:30 pm - 12:15 pmORD-LHR
7h 45mnonstop
2:10 pm - 5:52 pmLHR-ORD
8h 42mnonstop
$620Iberia
Find Deal
Wed, Oct 23 - Wed, Oct 30
4:35 pm - 10:55 amORD-LGW
12h 20m1 stop
7:35 pm - 2:30 pmLGW-ORD
24h 55m1 stop
$627British Airways
Find Deal
Wed, Oct 23 - Mon, Nov 4
4:35 pm - 10:55 amORD-LGW
12h 20m1 stop
7:35 pm - 3:30 pmLGW-ORD
24h 55m1 stop
$722British Airways
Find Deal
Wed, Oct 23 - Mon, Oct 28
7:30 pm - 11:45 amORD-LGW
10h 15m1 stop
11:55 am - 5:20 pmLGW-ORD
11h 25m1 stop
$739Icelandair
Find Deal
Thu, Oct 24 - Wed, Nov 6
7:30 pm - 11:45 amORD-LGW
10h 15m1 stop
11:55 am - 5:20 pmLGW-ORD
11h 25m1 stop
$854Icelandair
Find Deal
Thu, Oct 24 - Fri, Nov 8
4:45 pm - 10:50 pmORD-LCY
24h 05m1 stop
6:50 am - 3:00 pmLCY-ORD
13h 10m1 stop
$1,461Aer Lingus
Find Deal
Sat, Oct 26 - Wed, Oct 30
4:45 pm - 3:55 pmORD-LCY
17h 10m1 stop
9:10 am - 5:55 pmLCY-ORD
14h 45m1 stop
$5,277Aer Lingus
Find Deal
Sat, Oct 26 - Wed, Nov 6
10:05 pm - 11:40 amORD-LHR
7h 35mnonstop
2:10 pm - 5:00 pmLHR-ORD
8h 50mnonstop
$553Iberia
Find Deal
Tue, Nov 19 - Tue, Nov 26
10:00 pm - 11:40 amORD-LHR
7h 40mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$594Iberia
Find Deal
Sun, Dec 29 - Fri, Jan 10
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
3:45 pm - 6:45 pmLHR-ORD
9h 00mnonstop
$600British Airways
Find Deal
Tue, Dec 3 - Wed, Dec 11
6:00 pm - 6:50 amORD-LHR
7h 50mnonstop
3:35 pm - 6:15 pmLHR-ORD
8h 40mnonstop
$606British Airways
Find Deal
Sun, Mar 23 - Tue, Apr 1
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$611Finnair
Find Deal
Sun, Nov 10 - Tue, Nov 19
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$615Finnair
Find Deal
Sun, Nov 10 - Tue, Nov 19
9:10 pm - 11:15 amORD-LHR
8h 05mnonstop
1:35 pm - 5:00 pmLHR-ORD
9h 25mnonstop
$619United Airlines
Find Deal
Tue, Nov 5 - Wed, Nov 13
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
11:55 am - 2:45 pmLHR-ORD
8h 50mnonstop
$629American Airlines
Find Deal
Wed, Jan 8 - Tue, Jan 14
9:10 pm - 11:15 amORD-LHR
8h 05mnonstop
10:25 am - 1:50 pmLHR-ORD
9h 25mnonstop
$641United Airlines
Find Deal
Sun, Nov 10 - Tue, Nov 19
11:05 pm - 11:40 amORD-LHR
7h 35mnonstop
11:05 am - 1:45 pmLHR-ORD
8h 40mnonstop
$921American Airlines
Find Deal
Thu, Mar 20 - Sun, Mar 30

Scandinavian Airlines flights from Chicago to London

Our best Scandinavian Airlines deals on Chicago to London flight tickets
Scandinavian Airlines
Dec 13
ORD7:10 pmChicago O'Hare Intl
17h 20m
2 stops
LHR6:30 pmLondon Heathrow
Dec 15
LHR5:00 pmLondon Heathrow
28h 50m
1 stop
ORD3:50 pmChicago O'Hare Intl
Scandinavian Airlines
Mar 7
ORD7:10 pmChicago O'Hare Intl
37h 25m
2 stops
LHR2:35 pmLondon Heathrow
Mar 10
LHR6:40 amLondon Heathrow
15h 10m
1 stop
ORD4:50 pmChicago O'Hare Intl
Scandinavian Airlines
Dec 13
ORD7:10 pmChicago O'Hare Intl
17h 20m
2 stops
LHR6:30 pmLondon Heathrow
Dec 15
LHR1:55 pmLondon Heathrow
31h 55m
2 stops
ORD3:50 pmChicago O'Hare Intl

British Airways flights from Chicago to London

Our best British Airways deals on Chicago to London flight tickets
British Airways
Nov 17
ORD1:54 pmChicago O'Hare Intl
11h 06m
1 stop
LHR7:00 amLondon Heathrow
Nov 19
LHR6:10 amLondon Heathrow
14h 20m
1 stop
ORD2:30 pmChicago O'Hare Intl
British Airways
Jan 12
ORD8:33 pmChicago O'Hare Intl
29h 17m
1 stop
LHR7:50 amLondon Heathrow
Jan 15
LHR6:15 amLondon Heathrow
14h 15m
1 stop
ORD2:30 pmChicago O'Hare Intl
British Airways
Mar 18
ORD10:45 pmChicago O'Hare Intl
7h 45m
LHR11:30 amLondon Heathrow
Mar 20
LHR6:15 amLondon Heathrow
14h 15m
1 stop
ORD3:30 pmChicago O'Hare Intl

How to get the cheapest flight ticket from Chicago to London

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 from Chicago to London?

February. The cheapest time of year to fly to London from Chicago is February. Most expensive is June

What is the cheapest day to depart Chicago for London?

Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Saturday

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

In the evening. Chicago to London flights are approximately 4% more expensive in the afternoon than in the evening

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

Scandinavian Airlines. Scandinavian Airlines, Icelandair, and Iberia are the most popular carriers operating from Chicago to London

What is the cheapest Chicago to London flight route?

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

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

59 days before. The cheapest time to buy a flight from Chicago to London is approximately 59 days to departure

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

As of October 2024, there are 61 flights per week flying from Chicago to London. The most common time of day flights depart is 6:00PM, with 73% of flights taking off in the evening.

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

431 flights are operational weekly from Chicago to London as of October 2024. The most popular departure day for this route is Sunday, with 14% of flights per week taking off on this day.

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

There are 3 cabin classes available to choose from on Chicago to London 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 flights?

You could potentially save up to 55% on your flight if you consider stops on a Chicago to London flight.

How have Chicago to London flight prices changed over time?

As of October 2024, prices for Chicago to London flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to London

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

Cheap Chicago to London (CHI to LON) flight deals and tips

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

Best Price Found

$166

Fastest flight time

7h 35m

Direct flights

Mon, Tue, Wed, Sat and Sun

Airports in London

4 airports
The best one-way flight to London from Chicago in the past 72 hours is $166. The best round-trip flight deal from Chicago to London found on momondo in the last 72 hours is $370.
The fastest flight from Chicago to London takes 7h 35m
Direct flights go from Chicago to London on Monday, Tuesday, Wednesday, Saturday and Sunday. Airlines offering direct flights are: United Airlines, Lufthansa and Finnair.
There are 4 airports near London: London City (LCY), London Heathrow (LHR), London Stansted (STN), London Gatwick (LGW)

  • How far is Chicago to London by plane?

    A flight from Chicago to London will travel around 3945.2 mi. Flights usually cover this in 7h 35m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Chicago to London refresh daily.

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

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

    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.

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

    The travel and health documents you'll need for your trip to London 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. 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?

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


Best airlines flying from Chicago to London

Compare and see reviews for airlines that fly from Chicago to London with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $381Free CancellationRating
7.3
1,303 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $451Free CancellationRating
8.0
8,892 reviews
Search Delta flights
IcelandairPriceFrom $473Free CancellationRating
7.2
607 reviews
Search Icelandair flights
American AirlinesPriceFrom $501Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
TAP AIR PORTUGALPriceFrom $507Free CancellationRating
7.1
1,909 reviews
Search TAP AIR PORTUGAL flights
Air CanadaPriceFrom $554Free CancellationRating
7.0
7,987 reviews
Search Air Canada flights
SWISSPriceFrom $555Free CancellationRating
7.6
1,643 reviews
Search SWISS flights
FinnairPriceFrom $569Free CancellationRating
7.7
1,322 reviews
Search Finnair flights
IberiaPriceFrom $570Free CancellationRating
7.0
2,678 reviews
Search Iberia flights
Virgin AtlanticPriceFrom $571Free CancellationRating
7.6
668 reviews
Search Virgin Atlantic flights
  • Finnair Flights From Chicago to London

    Across 42 Finnair flights from Chicago to London this week, the average price was $778, with the best Finnair deals starting from $569 round-trip. 1,322 users have rated Finnair on momondo, with an average score of 7.7/10.

  • SWISS Flights From Chicago to London

    The best SWISS deal for Chicago to London flight tickets found on momondo in the last 72 hours was $555, round-trip. It should be noted that an average SWISS flight deal for this route in this time was higher, at $896 round-trip. SWISS operates 20 flights out of Chicago into London in an average week, so prices vary by time and availability. 1,643 SWISS reviews by users on momondo have scored the airline at 7.6/10.


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?

Yes. momondo enables you to select and highlight flights to London from Chicago with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Chicago.

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

Yes momondo offers price alerts on flights to London 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.


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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London
Airports listed have a maximum distance of 35.6 mi from London