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Cheap flights from Chicago to London from $314

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to London departing on 5/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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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
$314WestJet
Mon, May 25 - Thu, May 28
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
$322WestJet
Mon, May 25 - Thu, May 28
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
WestJet Logo
5:55 pm - 4:40 pm
YXU
-
ORD
23h 45m
1 stop
$363WestJet
Sat, May 23 - Tue, May 26
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
WestJet Logo
5:55 pm - 4:40 pm
YXU
-
ORD
23h 45m
1 stop
$398WestJet
Sat, May 23 - Tue, May 26
Multiple Airlines Logo
2:20 pm - 6:35 am
ORD
-
YXU
15h 15m
1 stop
Multiple Airlines Logo
8:10 pm - 6:08 am
YXU
-
ORD
34h 58m
2 stops
$518Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Air Canada Logo
10:00 am - 5:05 pm
ORD
-
YXU
6h 05m
1 stop
Air Canada Logo
9:40 am - 3:10 pm
YXU
-
ORD
6h 30m
1 stop
$519Air Canada
Mon, Mar 16 - Mon, Mar 23
Air Canada Logo
3:50 pm - 9:38 pm
ORD
-
YXU
4h 48m
1 stop
Air Canada Logo
12:20 pm - 8:08 pm
YXU
-
ORD
8h 48m
2 stops
$528Air Canada
Sat, May 23 - Tue, May 26
Air Canada Logo
8:20 pm - 8:53 am
ORD
-
YXU
11h 33m
1 stop
Air Canada Logo
12:20 pm - 8:08 pm
YXU
-
ORD
8h 48m
2 stops
$553Air Canada
Sat, May 23 - Tue, May 26
Air Canada Logo
4:15 pm - 9:18 pm
ORD
-
YXU
4h 03m
1 stop
Air Canada Logo
5:10 am - 9:10 am
YXU
-
ORD
5h 00m
1 stop
$575Air Canada
Fri, Apr 3 - Fri, Apr 10
Air Canada Logo
3:50 pm - 9:38 pm
ORD
-
YXU
4h 48m
1 stop
Air Canada Logo
12:20 pm - 8:08 pm
YXU
-
ORD
8h 48m
2 stops
$584Air Canada
Sat, May 23 - Tue, May 26

Air Canada flights from Chicago to London, Ontario

Our best Air Canada deals on Chicago to London, Ontario flight tickets
Air Canada
Mar 16
ORD10:00 amChicago O'Hare Intl
6h 05m
1 stop
YXU5:05 pmLondon
Mar 23
YXU9:40 amLondon
6h 30m
1 stop
ORD3:10 pmChicago O'Hare Intl
$519
Air Canada
May 23
ORD3:50 pmChicago O'Hare Intl
4h 48m
1 stop
YXU9:38 pmLondon
May 26
YXU12:20 pmLondon
8h 48m
2 stops
ORD8:08 pmChicago O'Hare Intl
$528
Air Canada
May 23
ORD8:20 pmChicago O'Hare Intl
11h 33m
1 stop
YXU8:53 amLondon
May 26
YXU12:20 pmLondon
8h 48m
2 stops
ORD8:08 pmChicago O'Hare Intl
$553

WestJet flights from Chicago to London, Ontario

Our best WestJet deals on Chicago to London, Ontario flight tickets
WestJet
May 25
ORD5:30 pmChicago O'Hare Intl
10h 50m
1 stop
YXU5:20 amLondon
May 28
YXU6:10 amLondon
11h 30m
1 stop
ORD4:40 pmChicago O'Hare Intl
$314
WestJet
May 25
ORD5:30 pmChicago O'Hare Intl
10h 50m
1 stop
YXU5:20 amLondon
May 28
YXU6:10 amLondon
11h 30m
1 stop
ORD4:40 pmChicago O'Hare Intl
$322
WestJet
May 23
ORD5:30 pmChicago O'Hare Intl
10h 50m
1 stop
YXU5:20 amLondon
May 26
YXU5:55 pmLondon
23h 45m
1 stop
ORD4:40 pmChicago O'Hare Intl
$363

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 February 18, 2026.
Use the filters below to find and compare flights from Chicago to London, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

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

$314

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

$322

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

$363

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

$398

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 3/16

2:20 pm-6:35 am

1 stop15h 15m

London

Mon 3/23

8:10 pm-6:08 am

2 stops34h 58m

$518

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 3/16

10:00 am-5:05 pm

1 stop6h 05m

London

Mon 3/23

9:40 am-3:10 pm

1 stop6h 30m

$519

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 5/23

3:50 pm-9:38 pm

1 stop4h 48m

London

Tue 5/26

12:20 pm-8:08 pm

2 stops8h 48m

$528

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 5/23

8:20 pm-8:53 am

1 stop11h 33m

London

Tue 5/26

12:20 pm-8:08 pm

2 stops8h 48m

$553

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 4/3

4:15 pm-9:18 pm

1 stop4h 03m

London

Fri 4/10

5:10 am-9:10 am

1 stop5h 00m

$575

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 5/23

3:50 pm-9:38 pm

1 stop4h 48m

London

Tue 5/26

12:20 pm-8:08 pm

2 stops8h 48m

$584

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from Chicago 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 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 according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 5 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 to London, Ontario

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

Cheap Chicago to London, Ontario (CHI to YXU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to London, Ontario

Fastest flight time

4h 48m

Direct flights

None
The fastest flight from Chicago to London, Ontario takes 4h 48m
There are no direct flights from Chicago to London, Ontario. There are no popular flight routes from Chicago to London, Ontario.
Search flight deals

  • How far is Chicago to London by plane?

    Chicago and London are 334.6 mi apart from one another. In terms of flight time, this usually takes a little over 4h 48m.

  • When did momondo last update prices for flights from Chicago to London Airport?

    Prices for flights from Chicago to London Airport refresh daily.

  • How old do you have to be to fly from Chicago 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 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?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to London for you.

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

Flights from Chicago to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to London.

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.

An easier way to manage your London, Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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