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ORD - YXU

$311 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 6/20. 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
0 bags
Fri 7/12
Fri 7/19

Search 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
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

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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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:00 pm - 9:35 pmORD-YXU
4h 35m1 stop
6:20 pm - 10:02 pmYXU-ORD
4h 42m1 stop
$604Air Canada
Find Deal
Fri, Jul 19 - Sun, Jul 21
1:02 pm - 5:47 pmORD-YXU
3h 45m1 stop
9:50 am - 1:59 pmYXU-ORD
5h 09m1 stop
Mon, Sep 16 - Thu, Sep 19
11:00 am - 5:45 pmORD-YXU
5h 45m1 stop
6:20 pm - 10:02 pmYXU-ORD
4h 42m1 stop
$639Air Canada
Find Deal
Fri, Jul 5 - Sun, Jul 7
9:00 am - 2:47 pmORD-YXU
4h 47m1 stop
6:00 am - 2:35 pmYXU-ORD
9h 35m2 stops
Mon, Sep 16 - Thu, Sep 19
6:00 am - 2:47 pmORD-YXU
7h 47m2 stops
9:50 am - 1:59 pmYXU-ORD
5h 09m1 stop
$649United Airlines
Find Deal
Mon, Sep 16 - Fri, Sep 20
6:00 am - 2:47 pmORD-YXU
7h 47m2 stops
6:00 am - 1:13 pmYXU-ORD
8h 13m2 stops
Mon, Sep 16 - Thu, Sep 19
7:35 pm - 2:45 pmORD-YXU
18h 10m2 stops
3:20 pm - 6:27 pmYXU-ORD
4h 07m1 stop
$788United Airlines
Find Deal
Fri, Jul 5 - Sun, Jul 7
12:00 pm - 5:45 pmORD-YXU
4h 45m1 stop
6:00 am - 2:40 pmYXU-ORD
9h 40m2 stops
Fri, Jul 19 - Sun, Jul 21
4:00 pm - 9:35 pmORD-YXU
4h 35m1 stop
6:00 am - 2:40 pmYXU-ORD
9h 40m2 stops
Fri, Jul 5 - Sun, Jul 7
8:35 pm - 5:18 amORD-YXU
31h 43m3 stops
8:00 pm - 7:10 pmYXU-ORD
24h 10m3 stops
Fri, Jul 5 - Sun, Jul 7

Good to know

Cheapest flight

$311
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 $311 for a one-way ticket and $604 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 7080 reviews
6.2Food
7.0Comfort
7.8Crew
7.2Boarding
6.8Entertainment
Airline reviews

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

2.0 MediocreAnonymous, Jun 2024STL - YYZ
Read more about Air Canada reviews

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

My flight got canceled. Then AC rebooked me to a next day flight. No compensation no apology. It almost messed up my entire trip and schedule. However, all the unexpepected seems routine and ordinary to AC, so customers need to get used to.

I love air Canada. The staff is so helpful and friendly and attentive. I paid for extra room but chose a ser near a person who took up a lot of space which gave me less space than regular economy, I was sad I did that!

For such a long flight they should offer tea or coffee in between two meals.

Did not appreciate “hidden fees” to check a bag for international flight and purchase a seat to be next to my spouse. Won’t choose this airline again.

No meal. Flight crew was wonderful, happily finding me storage for my guitar. THANK YOU!!!

The original flight from Boston to Toronto was canceled because of a mechanical failure. I was then scheduled on a flight to go from Boston to Montreal and then Montreal to Toronto. The flight was extremely full and I had to check my carry-on bag. When I actually got on the plane there appeared to be room for my bag. I understand the mechanical failures happen. But it was frustrating that they pestered me to check my bag when I don't believe it was necessary. Additionally, not just with Air Canada, modern airline seats are incredibly uncomfortable. There is considerable research that shows that the shape of them is poor for back health.

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

This was a red eye return, so I doubt there would be anyway to make it better. Other than adding beds.

Book cheap flights from Chicago to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chicago to London found on KAYAK in the last 72 hours.
6/20Thu
3 stops
21h 24mORD-YXU
$311
6/21Fri
3 stops
21h 18mORD-YXU
$334
6/21Fri
1 stopAir Canada
4h 35mORD-YXU
$390
6/20Thu
2 stops
31h 55mORD-YXU
$404
6/20Thu
1 stopAir Canada
7h 45mORD-YXU
$413
6/17Mon
1 stopAir Canada
6h 21mORD-YXU
$500
6/17Mon
1 stop
19h 15mORD-YXU
$556
6/21Fri
2 stops
13h 25mORD-YXU
$592
6/17Mon
2 stops
11h 51mORD-YXU
$634
6/17Mon
3 stops
45h 31mORD-YXU
$658

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Chicago - London Flights

Departure:

Chicago (ORD)United States

Destination:

London (YXU)Canada

Return flight deals:

London - Chicago

Cabin classes:

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