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Find cheap flights from London to Chicago from C$ 786

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to O'Hare Intl departing on 18/5. 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
Sun 28/4
Sun 5/5

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Chicago, 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 London to Chicago, as well as popular online travel agencies
In the last 7 days, travellers have searched 46,342,885 times on KAYAK, and here is why:

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Cheap flight deals from London to O'Hare Intl

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to O'Hare Intl 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.
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6:00 a.m. - 2:41 p.m.YXU-ORD
9h 41m2 stops
9:00 a.m. - 2:46 p.m.ORD-YXU
4h 46m1 stop
C$ 786Air Canada
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Sat, 18 May - Sun, 26 May
9:50 a.m. - 12:54 p.m.YXU-ORD
4h 04m1 stop
9:00 a.m. - 2:46 p.m.ORD-YXU
4h 46m1 stop
C$ 792Air Canada
Find Deal
Sat, 18 May - Sun, 26 May
9:50 a.m. - 12:54 p.m.YXU-ORD
4h 04m1 stop
4:00 p.m. - 9:36 p.m.ORD-YXU
4h 36m1 stop
C$ 799Air Canada
Find Deal
Fri, 17 May - Mon, 27 May
6:00 a.m. - 9:54 a.m.YXU-ORD
4h 54m1 stop
9:00 a.m. - 2:46 p.m.ORD-YXU
4h 46m1 stop
C$ 813
Find Deal
Thu, 30 May - Sun, 2 Jun
3:20 p.m. - 6:26 p.m.YXU-ORD
4h 06m1 stop
2:15 p.m. - 9:35 p.m.ORD-YXU
6h 20m1 stop
C$ 829Air Canada
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Sat, 22 Jun - Wed, 26 Jun
3:25 p.m. - 8:44 p.m.YXU-ORD
6h 19m1 stop
6:30 p.m. - 2:46 p.m.ORD-YXU
19h 16m2 stops
C$ 860
Find Deal
Thu, 30 May - Sun, 2 Jun
9:50 a.m. - 6:51 p.m.YXU-ORD
10h 01m2 stops
4:00 p.m. - 9:35 p.m.ORD-YXU
4h 35m1 stop
C$ 880Air Canada
Find Deal
Sat, 22 Jun - Wed, 26 Jun
9:50 a.m. - 8:16 p.m.YXU-ORD
11h 26m2 stops
6:30 p.m. - 2:46 p.m.ORD-YXU
19h 16m2 stops
C$ 955Air Canada
Find Deal
Sat, 18 May - Sun, 26 May
3:25 p.m. - 6:29 p.m.YXU-ORD
4h 04m1 stop
6:00 a.m. - 2:46 p.m.ORD-YXU
7h 46m2 stops
C$ 984United Airlines
Find Deal
Fri, 17 May - Sat, 25 May
9:50 a.m. - 2:53 p.m.YXU-ORD
6h 03m1 stop
3:00 p.m. - 2:47 p.m.ORD-YXU
22h 47m2 stops
C$ 1,091United Airlines
Find Deal
Sun, 15 Sep - Wed, 18 Sep

Flights from London to O'Hare Intl - Travel Insights & Trends

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

How long does a flight from London to Chicago take?

Flying between Chicago and London will take minimum 4h 04m and will require at least one stop.

Good to know

Low season

February

High season

May

Cheapest flight

C$ 786
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly (21% more expensive on average)
Flight from London to Chicago

When to book flights from London to O'Hare Intl

Are your dates flexible? Find out the best times to travel from London to O'Hare Intl 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 London to Chicago flights

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

    In the last 3 days, the lowest price for a flight from London, Ontario to Chicago O'Hare Intl Airport was C$ 579 for a round-trip ticket.

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

    When flying out of London you will be using London. You will be landing at Chicago, also known as Chicago O'Hare Intl.

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

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

  • Which airline alliances offer flights from London to Chicago?

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

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

    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 London to Chicago.

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

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

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

    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 Chicago with an airline and back to London with another airline.

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

    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 Chicago from London 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 London to O'Hare Intl

Need help choosing which airline to fly with from London to O'Hare Intl? 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 KAYAK reviews.
7.0
Air CanadaOverall score based on 6743 reviews
70comfort
62food
72boarding
78crew
68entertainment
70overall
Airline reviews

The boarding process in Toronto bad as they share space with domestic flights and when those domestic flights come in you are locked out behind closed doors until they are done and then its a mad rush to get your boarding gates and board. This is not so much due to Air Canada but with the GTAA, but Air Canada could use different gates especially early morning in order to prevent such travel angst.

Read more about Air Canada

The boarding process in Toronto bad as they share space with domestic flights and when those domestic flights come in you are locked out behind closed doors until they are done and then its a mad rush to get your boarding gates and board. This is not so much due to Air Canada but with the GTAA, but Air Canada could use different gates especially early morning in order to prevent such travel angst.

Terrible quality wifi and they charge a lot for it. They nickel and dime you for everything.

Not happy with Air Canada . Flight was cancelled got the run around trying to get another flight that was direct none to be found ended up going to Denver then onto Austin adding 7 hours to our trip. Was travelling with some one who had walking issues that’s why we were happy to have a direct flight then it didn’t happen adding more stress on her

I wish there had been more seat options...when I tried to book, there were only.middle seats available. Do travel agents get first pick??

As is pretty much the norm with Air Canada now, we left late from the gate (45 minutes late). This is my 12th flight with AC in the last 12 months and 10 of those flights were either late or cancelled. AC essentially has a monopoly in Canada so they have carte blanche to charge exorbitant rates now and give poor service, with no repercussions.

A 2 hour delay because they couldn’t fit some oversized cargo in the small hold doors of an Embraer! Surely they know the sizes before attempting to load it?

When we got to the airport for our flight from Chicago to Montreal which was scheduled for 2.00 p.m. they had no record of it and booked us on a flight at 3.30 very disappointing . We also had to pay 50.00 each for a seat. All things considered ,I will never book thru Kayak again. Next time I will only book directly thru Air Canada no second party booking Sue

-kayak did not give me advanced notice to my e-mail for my flight and I had major trouble finding the code to access Air Canada’s site because you did not provide it to me and incompetent Air Canada did not have any access based on my name alone. WTF -The flight was delayed twice. -They moved the boarding area -They said I would give free checked baggage because the plane was full and they charged me over $30 -They didn’t get my luggage on to the plane and left without it and I’m heading to a cruise ship. -I have lost one FULL day of my limited holiday and had to cancel scheduled events because my luggage did not get on the plane (even though the plane was delayed). -The “wheresmyluggage.com site is a total incompetent disaster that caused additional stress. -I will be sharing this experience

Plane was a Rouge vacation flyer for some reason. No legroom and entertainment. People were desperately looking for USB ports and such. And then there is this notorious and unsolved space problem where not all carry-on fits in the cabin….

They did not have any meal options left on the menu. Only snacks.

London - Chicago Flights

Departure:

London (YXU)Canada

Destination:

Chicago (ORD)United States

Cabin classes: