What is the cheapest airline that flies from Chicago to London?

Air Canada, WestJet, and United Airlines are the most popular carriers operating from Chicago to London

What airlines fly to London, Ontario?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to London, Ontario from Chicago according to our data. Air Canada is the first choice among our users, with 40% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 3 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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.

$186 Cheap Flights from Chicago to London in 2025/26

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Find the cheapest flights from Chicago to London

Round-trip

One-way

Cheap round-trip flights

5:30 pm - 5:12 amORD-YXU

10h 42m1 stop

8:00 pm - 4:43 pmYXU-ORD

21h 43m1 stop

$340WestJet

Find Deal

Thu, Oct 9 - Wed, Oct 15

5:30 pm - 5:12 amORD-YXU

10h 42m1 stop

6:00 am - 12:31 pmYXU-ORD

31h 31m2 stops

$390Multiple Airlines

Find Deal

Thu, Oct 9 - Wed, Oct 15

1:26 pm - 7:12 pmORD-YXU

28h 46m2 stops

8:10 pm - 1:35 pmYXU-ORD

18h 25m1 stop

$464Multiple Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 6

5:30 pm - 5:12 amORD-YXU

10h 42m1 stop

6:00 am - 12:31 pmYXU-ORD

31h 31m3 stops

$501Multiple Airlines

Find Deal

Thu, Oct 9 - Wed, Oct 15

1:26 pm - 5:12 amORD-YXU

14h 46m2 stops

6:00 am - 12:31 pmYXU-ORD

31h 31m3 stops

$582Multiple Airlines

Find Deal

Thu, Oct 9 - Wed, Oct 15

10:00 am - 5:06 pmORD-YXU

6h 06m1 stop

9:25 am - 1:01 pmYXU-ORD

4h 36m1 stop

$600Air Canada

Find Deal

Thu, Oct 30 - Thu, Nov 6

10:00 am - 5:05 pmORD-YXU

6h 05m1 stop

5:15 am - 11:18 amYXU-ORD

7h 03m2 stops

$606Air Canada

Find Deal

Sat, Nov 1 - Sat, Nov 8

9:55 am - 3:02 pmORD-YXU

4h 07m1 stop

9:55 am - 3:04 pmYXU-ORD

6h 09m1 stop

$629Air Canada

Find Deal

Thu, Oct 9 - Wed, Oct 15

10:00 am - 5:06 pmORD-YXU

6h 06m1 stop

5:45 am - 9:13 amYXU-ORD

4h 28m1 stop

$665United Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 6

7:15 am - 5:06 pmORD-YXU

8h 51m2 stops

9:25 am - 3:10 pmYXU-ORD

6h 45m1 stop

$674United Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 6

Air Canada flights from Chicago to London, Ontario

Our best Air Canada deals on Chicago to London, Ontario flight tickets

Air Canada

Oct 30

ORD10:00 amChicago O'Hare Intl

6h 06m

1 stop

YXU5:06 pmLondon

Nov 6

YXU9:25 amLondon

4h 36m

1 stop

ORD1:01 pmChicago O'Hare Intl

$600

Find similar

Air Canada

Nov 1

ORD10:00 amChicago O'Hare Intl

6h 05m

1 stop

YXU5:05 pmLondon

Nov 8

YXU5:15 amLondon

7h 03m

2 stops

ORD11:18 amChicago O'Hare Intl

$606

Find similar

Air Canada

Oct 9

ORD9:55 amChicago O'Hare Intl

4h 07m

1 stop

YXU3:02 pmLondon

Oct 15

YXU9:55 amLondon

6h 09m

1 stop

ORD3:04 pmChicago O'Hare Intl

$629

Find similar

United Airlines flights from Chicago to London, Ontario

Our best United Airlines deals on Chicago to London, Ontario flight tickets

United Airlines

Oct 30

ORD10:00 amChicago O'Hare Intl

6h 06m

1 stop

YXU5:06 pmLondon

Nov 6

YXU5:45 amLondon

4h 28m

1 stop

ORD9:13 amChicago O'Hare Intl

$665

Find similar

United Airlines

Oct 30

ORD7:15 amChicago O'Hare Intl

8h 51m

2 stops

YXU5:06 pmLondon

Nov 6

YXU9:25 amLondon

6h 45m

1 stop

ORD3:10 pmChicago O'Hare Intl

$674

Find similar

United Airlines

Nov 1

ORD2:00 pmChicago O'Hare Intl

6h 21m

1 stop

YXU9:21 pmLondon

Nov 8

YXU9:25 amLondon

6h 45m

1 stop

ORD3:10 pmChicago O'Hare Intl

$675

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/9

5:30 pm-5:12 am

1 stop10h 42m

London

Wed 10/15

8:00 pm-4:43 pm

1 stop21h 43m

$340

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/9

5:30 pm-5:12 am

1 stop10h 42m

London

Wed 10/15

6:00 am-12:31 pm

2 stops31h 31m

$390

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/30

1:26 pm-7:12 pm

2 stops28h 46m

London

Thu 11/6

8:10 pm-1:35 pm

1 stop18h 25m

$464

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/9

5:30 pm-5:12 am

1 stop10h 42m

London

Wed 10/15

6:00 am-12:31 pm

3 stops31h 31m

$501

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/9

1:26 pm-5:12 am

2 stops14h 46m

London

Wed 10/15

6:00 am-12:31 pm

3 stops31h 31m

$582

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/30

10:00 am-5:06 pm

1 stop6h 06m

London

Thu 11/6

9:25 am-1:01 pm

1 stop4h 36m

$600

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 11/1

10:00 am-5:05 pm

1 stop6h 05m

London

Sat 11/8

5:15 am-11:18 am

2 stops7h 03m

$606

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/9

9:55 am-3:02 pm

1 stop4h 07m

London

Wed 10/15

9:55 am-3:04 pm

1 stop6h 09m

$629

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/30

10:00 am-5:06 pm

1 stop6h 06m

London

Thu 11/6

5:45 am-9:13 am

1 stop4h 28m

$665

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 10/30

7:15 am-5:06 pm

2 stops8h 51m

London

Thu 11/6

9:25 am-3:10 pm

1 stop6h 45m

$674

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to London, Ontario?

According to our data, Thursday is the cheapest day to fly to London, Ontario from Chicago. The lowest ticket price found for a Thursday departure recently was $316. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to London, Ontario on Tuesday is $780.

What is the cheapest time of day to depart on your flight to London, Ontario?

In the morning is the cheapest time of day to fly from Chicago to London, Ontario when you can find flight prices for as low as $587. Flying to London, Ontario in the morning is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to London, Ontario, so prices are often more expensive at around $764 per ticket.

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

Direct flights	None

There are no direct flights from Chicago to London, Ontario. There are no popular flight routes from Chicago to London, Ontario.

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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 07m.
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.

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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.