Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Chicago 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 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 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 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
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 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
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
Air Canada Logo
2:15 pm - 9:40 pm
ORD
-
YXU
6h 25m
1 stop
Air Canada Logo
5:40 am - 9:00 am
YXU
-
ORD
4h 20m
1 stop
$611Air Canada
Sun, Aug 16 - Sun, Aug 23
Multiple Airlines Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
Multiple Airlines Logo
5:40 am - 9:00 am
YXU
-
ORD
4h 20m
1 stop
$613Multiple Airlines
Fri, Aug 14 - Fri, Aug 21
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
$614WestJet
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
8:40 am - 9:20 am
ORD
-
YXU
23h 40m
3 stops
Multiple Airlines Logo
5:55 pm - 9:00 am
YXU
-
ORD
16h 05m
2 stops
$615Multiple Airlines
Mon, Aug 17 - Mon, Aug 24

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

WestJet flights from Chicago to London, Ontario

Our best WestJet deals on Chicago 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

Air Canada flights from Chicago to London, Ontario

Our best Air Canada deals on Chicago to London, Ontario flight tickets
Air Canada
Aug 16
ORD2:15 pmChicago O'Hare Intl
6h 25m
1 stop
YXU9:40 pmLondon
Aug 23
YXU5:40 amLondon
4h 20m
1 stop
ORD9:00 amChicago O'Hare Intl
$611
Air Canada
Aug 14
ORD11:05 amChicago O'Hare Intl
9h 35m
2 stops
YXU9:40 pmLondon
Aug 21
YXU5:40 amLondon
4h 20m
1 stop
ORD9:00 amChicago O'Hare Intl
$623
Air Canada
Sep 13
ORD3:45 pmChicago O'Hare Intl
4h 55m
1 stop
YXU9:40 pmLondon
Sep 15
YXU10:05 amLondon
4h 18m
1 stop
ORD1:23 pmChicago O'Hare Intl
$696

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 July 5, 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

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

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

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

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

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
Quickest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sun 8/16

2:15 pm-9:40 pm

1 stop6h 25m

London

Sun 8/23

5:40 am-9:00 am

1 stop4h 20m

$611

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Fri 8/14

5:30 pm-5:20 am

1 stop10h 50m

London

Fri 8/21

5:40 am-9:00 am

1 stop4h 20m

$613

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

$614

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 8/17

8:40 am-9:20 am

3 stops23h 40m

London

Mon 8/24

5:55 pm-9:00 am

2 stops16h 05m

$615

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 is the cheapest airline that flies from Chicago to London?

WestJet and Air Canada are the most popular carriers operating from Chicago 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 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 7 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 02m

Direct flights

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

Frequently asked questions about flying from Chicago to London, Ontario

  • 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 02m.

  • 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 8/4
Tue 8/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada