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ORD - YXU

$238 Find Cheap Flights from Chicago to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to London departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to London, as well as popular online travel agencies
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Cheap Flight Deals from Chicago to London (ORD-YXU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Chicago to London

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to London.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
9:02 pm - 7:09 pmORD-YXU
21h 07m2 stops
8:00 pm - 4:44 pmYXU-ORD
21h 44m1 stop
$415
Find Deal
Tue, May 13 - Tue, May 20
9:02 pm - 7:09 pmORD-YXU
21h 07m2 stops
8:00 pm - 4:44 pmYXU-ORD
21h 44m1 stop
$418
Find Deal
Tue, May 13 - Tue, May 20
5:30 pm - 7:09 pmORD-YXU
24h 39m1 stop
8:00 pm - 4:44 pmYXU-ORD
21h 44m1 stop
$423WestJet
Find Deal
Tue, May 13 - Tue, May 20
9:02 pm - 5:14 amORD-YXU
31h 12m3 stops
8:00 pm - 4:44 pmYXU-ORD
21h 44m1 stop
$437
Find Deal
Tue, May 13 - Tue, May 20
9:02 pm - 5:14 amORD-YXU
31h 12m2 stops
8:00 pm - 5:25 amYXU-ORD
34h 25m3 stops
$444
Find Deal
Tue, May 13 - Tue, May 20
9:35 am - 3:04 pmORD-YXU
4h 29m1 stop
9:55 am - 12:55 pmYXU-ORD
4h 00m1 stop
$557Air Canada
Find Deal
Wed, May 14 - Wed, May 21
5:30 pm - 7:09 pmORD-YXU
24h 39m1 stop
8:00 pm - 4:44 pmYXU-ORD
21h 44m1 stop
$619WestJet
Find Deal
Tue, May 13 - Tue, May 20
4:00 pm - 9:29 pmORD-YXU
4h 29m1 stop
9:55 am - 12:55 pmYXU-ORD
4h 00m1 stop
$673Air Canada
Find Deal
Thu, May 15 - Thu, May 22
6:25 pm - 3:04 pmORD-YXU
19h 39m2 stops
3:45 pm - 7:57 amYXU-ORD
17h 12m2 stops
$826United Airlines
Find Deal
Tue, May 13 - Tue, May 20
8:00 pm - 2:48 pmORD-YXU
17h 48m2 stops
3:45 pm - 2:16 pmYXU-ORD
23h 31m2 stops
$870United Airlines
Find Deal
Mon, Apr 28 - Mon, May 5

KAYAK's insights & trends for Chicago to London flights

Get data-powered insights and trends into flights from Chicago to London to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Chicago to London?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest round-trip tickets from Chicago to London were found on WestJet ($423) and Air Canada ($557).
Find deals

Good to know

Cheapest flight

$238
Flight from Chicago to London

When to book flights from Chicago to London

Are your dates flexible? Find out the best times to travel from Chicago to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to London flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to London?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to London was $238 for a one-way ticket and $415 for a round-trip.

  • Do I need a passport to fly between Chicago and London?

    A passport is required to fly from Chicago to London.

  • Which airports will I be using when flying from Chicago to London?

    On your way to London, you’ll fly out from Chicago O'Hare Intl. You’ll be landing at London.

  • Which aircraft models fly most regularly from Chicago to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago to London?

    Star Alliance is the only airline alliance operating flights between Chicago and London.

  • How does KAYAK find such low prices on flights from Chicago to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Chicago with another airline. Booking your flights between Chicago and YXU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Chicago to London

 
See real verified KAYAK customer reviews for airlines flying from Chicago to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
Air CanadaOverall score based on 9004 reviews
7.8Crew
7.0Comfort
6.2Food
7.3Boarding
6.8Entertainment
Airline reviews

Everything went smoothly. I appreciate the selection of free movies.

10.0 ExcellentAnonymous, Mar 2025PBI - YYZ
Read more Air Canada reviews

Everything went smoothly. I appreciate the selection of free movies.

I like the friendliness of the crew members. I think the snack could’ve been better instead of a small package of pretzel. I like that they offer me something to drink.

The TSA agents in Phoenix were incredibly rude and confiscated belongings that we wanted to check. The flight got changed without our knowledge to a worse situation. The whole thing was terrible

My experience with Air Canada was good. Great customer service… only a few delays and issues with the tunnel to exit the plain. I did not appreciate that we arrived at terminal D and had to go to terminal E to get the bags/ luggage.

They announced before boarding that the flight was full and there would be limited space in the overhead bins and you could check in for free. We did and after we boarded the plane found it was not full and there was plenty of space in the overhead bins. I’m not sure why they made this announcement.

Front desk attendant wouldn’t check me in even though there was not a single person in line. Made me use the kiosk. Kiosk had an error (of course) no baggage can be checked at this kiosk please see attendant. Then I had to wait in line for the same front desk attendant waiting for 5 people who ended up coming in front of me while I tried to use a broken and useless kiosk. Finally after checked in, wait 30 min to board all the way to zone 6 and they would deny me even after all the zone 1-5 people already went. Just literally making us wait to board so they stand there doing nothing for 5 minutes. Just ridiculous and awful customer service. Fly with literally anyone else

We have to wait long time at airport. Plane left from 8 pm to 1:35 am.Long time waiting

My oroginal flight was delayed several times. Finally the flight was cancelled. I had to spend additional money and book another flight with Porter at another airport Fort Lauderdale International Airport or I would miss the event I had in Toronto. I did not board the rescheduled flight which was after my event.

The staff could have been friendlier. And Having the flight on time would have been much more convenient.

Excellent We were very empress with this Airline as once our flight was canceled, they immediately rebooked our flight and provided accommodations for hotels….Thank you!

Everything you need to know for your flight from Chicago to London

Information on your arrival and departure airports

London (YXU)
Chicago (ORD)

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