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Cheap flights from Chicago O'Hare Intl Airport to London from $264

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 O'Hare Intl Airport to London departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Chicago O'Hare Intl Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
WestJet Logo
6:10 am - 4:40 pm
YXU
-
ORD
11h 30m
1 stop
$530WestJet
Fri, Oct 16 - Sun, Oct 18
Multiple Airlines Logo
8:40 am - 5:20 am
ORD
-
YXU
19h 40m
2 stops
Multiple Airlines Logo
5:40 am - 2:55 pm
YXU
-
ORD
10h 15m
1 stop
$557Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
8:40 pm - 1:50 pm
ORD
-
YXU
16h 10m
2 stops
Multiple Airlines Logo
3:30 pm - 7:52 pm
YXU
-
ORD
5h 22m
1 stop
$558Multiple Airlines
Mon, Jul 27 - Mon, Aug 3
Multiple Airlines Logo
8:40 am - 5:20 am
ORD
-
YXU
19h 40m
2 stops
Multiple Airlines Logo
5:55 pm - 9:00 am
YXU
-
ORD
16h 05m
2 stops
$564Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
8:45 am - 5:20 am
ORD
-
YXU
19h 35m
3 stops
Multiple Airlines Logo
10:05 am - 2:55 pm
YXU
-
ORD
5h 50m
1 stop
$576Multiple Airlines
Mon, Jul 27 - Mon, Aug 3
Multiple Airlines Logo
5:35 pm - 5:20 am
ORD
-
YXU
34h 45m
3 stops
Multiple Airlines Logo
10:05 am - 1:57 pm
YXU
-
ORD
4h 52m
1 stop
$584Multiple Airlines
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
8:40 pm - 1:50 pm
ORD
-
YXU
16h 10m
2 stops
Multiple Airlines Logo
9:10 pm - 10:16 am
YXU
-
ORD
14h 06m
3 stops
$589Multiple Airlines
Mon, Jul 27 - Mon, Aug 3
Multiple Airlines Logo
8:40 am - 5:20 am
ORD
-
YXU
19h 40m
2 stops
Multiple Airlines Logo
5:40 am - 9:00 am
YXU
-
ORD
4h 20m
1 stop
$595Multiple Airlines
Sun, Aug 16 - Sun, Aug 23
Multiple Airlines Logo
8:45 am - 5:20 am
ORD
-
YXU
19h 35m
3 stops
Multiple Airlines Logo
9:10 pm - 10:16 am
YXU
-
ORD
14h 06m
3 stops
$607Multiple Airlines
Mon, Jul 27 - Mon, Aug 3
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
WestJet Logo
6:10 am - 4:40 pm
YXU
-
ORD
11h 30m
1 stop
$610WestJet
Fri, Aug 14 - Fri, Aug 21

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WestJet flights from Chicago O'Hare Intl Airport to London, Ontario

Our best WestJet deals on Chicago O'Hare Intl Airport to London, Ontario flight tickets
WestJet
Oct 16
ORD5:30 pmChicago O'Hare Intl
10h 50m
1 stop
YXU5:20 amLondon
Oct 18
YXU6:10 amLondon
11h 30m
1 stop
ORD4:40 pmChicago O'Hare Intl
$530
WestJet
Aug 14
ORD5:30 pmChicago O'Hare Intl
10h 50m
1 stop
YXU5:20 amLondon
Aug 21
YXU6:10 amLondon
11h 30m
1 stop
ORD4:40 pmChicago O'Hare Intl
$610
WestJet
Aug 14
ORD5:30 pmChicago O'Hare Intl
10h 50m
1 stop
YXU5:20 amLondon
Aug 21
YXU6:10 amLondon
11h 30m
1 stop
ORD4:40 pmChicago O'Hare Intl
$614

United Airlines flights from Chicago O'Hare Intl Airport to London, Ontario

Our best United Airlines deals on Chicago O'Hare Intl Airport to London, Ontario flight tickets
United Airlines
Oct 16
ORD9:35 pmChicago O'Hare Intl
16h 20m
2 stops
YXU2:55 pmLondon
Oct 18
YXU5:40 amLondon
4h 20m
1 stop
ORD9:00 amChicago O'Hare Intl
$802
United Airlines
Aug 1
ORD2:15 pmChicago O'Hare Intl
5h 17m
1 stop
YXU8:32 pmLondon
Aug 8
YXU10:05 amLondon
5h 50m
1 stop
ORD2:55 pmChicago O'Hare Intl
$827
United Airlines
Aug 14
ORD10:50 amChicago O'Hare Intl
9h 50m
2 stops
YXU9:40 pmLondon
Aug 21
YXU10:05 amLondon
7h 54m
2 stops
ORD4:59 pmChicago O'Hare Intl
$852

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to London, Ontario 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, momondo users made 832,500 searches. Data last updated July 4, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to London, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 10/16

5:30 pm-5:20 am

1 stop10h 50m

London

Sun 10/18

6:10 am-4:40 pm

1 stop11h 30m

$530

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 8/17

8:40 am-5:20 am

2 stops19h 40m

London

Mon 8/24

5:40 am-2:55 pm

1 stop10h 15m

$557
Quickest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 7/27

8:40 pm-1:50 pm

2 stops16h 10m

London

Mon 8/3

3:30 pm-7:52 pm

1 stop5h 22m

$558

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 8/17

8:40 am-5:20 am

2 stops19h 40m

London

Mon 8/24

5:55 pm-9:00 am

2 stops16h 05m

$564

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 7/27

8:45 am-5:20 am

3 stops19h 35m

London

Mon 8/3

10:05 am-2:55 pm

1 stop5h 50m

$576

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 8/14

5:35 pm-5:20 am

3 stops34h 45m

London

Fri 8/21

10:05 am-1:57 pm

1 stop4h 52m

$584

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 7/27

8:40 pm-1:50 pm

2 stops16h 10m

London

Mon 8/3

9:10 pm-10:16 am

3 stops14h 06m

$589

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 8/16

8:40 am-5:20 am

2 stops19h 40m

London

Sun 8/23

5:40 am-9:00 am

1 stop4h 20m

$595

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 7/27

8:45 am-5:20 am

3 stops19h 35m

London

Mon 8/3

9:10 pm-10:16 am

3 stops14h 06m

$607

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 8/14

5:30 pm-5:20 am

1 stop10h 50m

London

Fri 8/21

6:10 am-4:40 pm

1 stop11h 30m

$610

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to London, Ontario

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 airline that flies from Chicago O'Hare Intl to London?

WestJet and Air Canada are the most popular carriers operating from Chicago O'Hare Intl to London

What airlines fly to London, Ontario?

United Airlines, Air Canada and American Airlines are the top three most popular airlines that fly to London, Ontario from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 6 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Chicago O'Hare Intl Airport to London, Ontario

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

Cheap Chicago O'Hare Intl Airport to London, Ontario (ORD to YXU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to London, Ontario

Fastest flight time

4h 02m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to London, Ontario takes 4h 02m
There are no direct flights from Chicago O'Hare Intl Airport to London, Ontario. There are no popular flight routes from Chicago O'Hare Intl Airport to London, Ontario.
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to London, Ontario

  • How far is Chicago O'Hare Intl to London by plane?

    The distance between Chicago O'Hare Intl and London is about 346.6 mi. Flights usually cover this in 4h 02m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to London Airport?

    Prices for flights from Chicago O'Hare Intl Airport to London Airport refresh daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to London Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to London Airport.

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

    The travel and health documents required for your trip to London Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near London?

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

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Chicago.

Can I find flights from Chicago to London with flexible booking policies on momondo?

All flight searches from Chicago to London on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Chicago and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to London from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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