HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$314+ Cheap flights from O'Hare Intl (ORD) to London, ON (YXU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YXU
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from O'Hare Intl to London

Cheapest flights from O'Hare Intl to London
Explore the most affordable flight options available from O'Hare Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This oojo deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:30 pm
ORD
-
YXU
1 stop10h 50m
WestJet
Thu 5/286:10 am
YXU
-
ORD
1 stop11h 30m
WestJet
Deal found 3/6$397
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:21 pm
ORD
-
YXU
2 stops32h 59m
Multiple Airlines
Sun 5/106:10 am
YXU
-
ORD
1 stop11h 30m
Multiple Airlines
Deal found 3/5$449
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:00 pm
ORD
-
YXU
1 stop6h 19m
Air Canada
Fri 5/15:40 am
YXU
-
ORD
2 stops10h 13m
Air Canada
Deal found 3/9$511
This oojo deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:30 pm
ORD
-
YXU
1 stop10h 50m
WestJet
Tue 5/265:55 pm
YXU
-
ORD
1 stop23h 45m
WestJet
Deal found 3/6$531
This Air Canada deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/24:15 pm
ORD
-
YXU
1 stop4h 04m
Air Canada
Thu 4/95:10 am
YXU
-
ORD
1 stop5h 00m
Air Canada
Deal found 3/5$549
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:20 am
ORD
-
YXU
2 stops24h 15m
Multiple Airlines
Mon 4/276:10 am
YXU
-
ORD
1 stop11h 30m
Multiple Airlines
Deal found 3/6$550
This oojo deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:20 pm
ORD
-
YXU
1 stop15h 15m
WestJet
Mon 4/276:10 am
YXU
-
ORD
1 stop11h 30m
WestJet
Deal found 3/6$551
This Air Canada deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/294:15 pm
ORD
-
YXU
1 stop4h 04m
Air Canada
Sat 5/25:40 am
YXU
-
ORD
2 stops10h 13m
Air Canada
Deal found 3/5$558

Find flight deals from O'Hare Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to London (YXU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$397
(oojo)

One-way from

$314
(United Airlines)
Provider with most accurate pricing for Chicago O'Hare Intl-London flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-London flights.
Search Deals
From Chicago O'Hare Intl to London
Search Deals
One-way flight from Chicago O'Hare Intl to London
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 5/25

5:30 pm-5:20 am

1 stop10h 50m

London

Thu 5/28

6:10 am-4:40 pm

1 stop11h 30m

$397

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 5/23

5:30 pm-5:20 am

1 stop10h 50m

London

Tue 5/26

5:55 pm-4:40 pm

1 stop23h 45m

$531
Quickest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 4/18

4:15 pm-9:19 pm

1 stop4h 04m

London

Sat 4/25

9:25 am-1:05 pm

1 stop4h 40m

$549

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 4/8

9:50 am-5:04 pm

1 stop6h 14m

London

Sun 4/12

9:25 am-1:05 pm

1 stop4h 40m

$597

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Wed 4/29

9:50 am-5:04 pm

1 stop6h 14m

London

Sat 5/2

5:40 am-2:53 pm

2 stops10h 13m

$605

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 4/4

4:15 pm-9:19 pm

1 stop4h 04m

London

Sat 4/11

9:25 am-1:05 pm

1 stop4h 40m

$629

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 4/5

9:50 am-5:04 pm

1 stop6h 14m

London

Sun 4/12

5:10 am-9:10 am

1 stop5h 00m

$629

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 4/2

4:15 pm-9:19 pm

1 stop4h 04m

London

Thu 4/9

5:40 pm-11:43 pm

2 stops7h 03m

$640

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 5/2

11:00 am-9:38 pm

2 stops9h 38m

London

Sun 5/10

12:20 pm-8:39 pm

2 stops9h 19m

$650
Cheapest one-way

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 4/23

9:50 am-5:04 pm

1 stop6h 14m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-London, Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-London, Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-London, Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-London, Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-London, Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to London

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

Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London, Ontario (average of $85). Flying from Chicago O'Hare Intl Airport to London, Ontario in March is currently the most expensive (average of $218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to London from Chicago O'Hare Intl?

    Located just 5.3 mi from the city center, London is the airport most travelers will use when flying to London from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to London (YXU) should be relatively easy as there are 0 daily inbound flights from Chicago O'Hare Intl from 0 different airlines.

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

    There are many flights that can get you from Chicago O'Hare Intl Airport to London, Ontario in 4h 04m. Fly via WestJet or Air Canada to get the fastest option. Airlines will cover a distance of 351 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from O'Hare Intl to London that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to London.

  • Can I find deals for business class flights from O'Hare Intl to London?

    Yes. Cheapflights offers flight deals from O'Hare Intl to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to London, Ontario (average of $85). Flying from Chicago O'Hare Intl Airport to London, Ontario in March is currently the most expensive (average of $218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights