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

Air Canada 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 38% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 4 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.

$269 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

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8:18 pm - 7:12 pmORD-YXU

21h 54m2 stops

8:10 pm - 8:09 pmYXU-ORD

24h 59m2 stops

$515Multiple Airlines

Find Deal

ter, dez 2 - ter, dez 9

3:43 pm - 7:12 pmORD-YXU

26h 29m3 stops

8:10 pm - 8:09 pmYXU-ORD

24h 59m2 stops

$516Multiple Airlines

Find Deal

ter, dez 2 - ter, dez 9

10:12 am - 7:12 pmORD-YXU

32h 00m3 stops

8:10 pm - 8:01 pmYXU-ORD

24h 51m3 stops

$528Multiple Airlines

Find Deal

ter, dez 2 - ter, dez 9

9:50 am - 5:03 pmORD-YXU

6h 13m1 stop

9:25 am - 1:00 pmYXU-ORD

4h 35m1 stop

$622Air Canada

Find Deal

sex, abr 24 - dom, abr 26

6:48 am - 7:12 pmORD-YXU

35h 24m3 stops

8:10 pm - 8:09 pmYXU-ORD

24h 59m2 stops

$624Multiple Airlines

Find Deal

qua, dez 3 - qua, dez 10

8:40 am - 9:18 pmORD-YXU

11h 38m2 stops

9:25 am - 1:00 pmYXU-ORD

4h 35m1 stop

$627Air Canada

Find Deal

sex, abr 24 - dom, abr 26

2:00 pm - 9:21 pmORD-YXU

6h 21m1 stop

9:25 am - 1:01 pmYXU-ORD

4h 36m1 stop

$635Air Canada

Find Deal

ter, dez 2 - qua, dez 24

7:10 am - 5:05 pmORD-YXU

8h 55m2 stops

5:10 am - 9:13 amYXU-ORD

5h 03m1 stop

$706United Airlines

Find Deal

seg, dez 8 - sex, dez 12

8:45 am - 5:05 pmORD-YXU

7h 20m2 stops

5:10 am - 11:50 amYXU-ORD

7h 40m2 stops

$722United Airlines

Find Deal

seg, dez 8 - sex, dez 12

8:58 pm - 9:21 pmORD-YXU

23h 23m2 stops

9:25 am - 1:01 pmYXU-ORD

4h 36m1 stop

$730United Airlines

Find Deal

qua, dez 24 - sex, dez 26

Air Canada flights from Chicago to London, Ontario

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

Air Canada

Apr 24

ORD9:50 amChicago O'Hare Intl

6h 13m

1 stop

YXU5:03 pmLondon

Apr 26

YXU9:25 amLondon

4h 35m

1 stop

ORD1:00 pmChicago O'Hare Intl

$622

Find similar

Air Canada

Apr 24

ORD8:40 amChicago O'Hare Intl

11h 38m

2 stops

YXU9:18 pmLondon

Apr 26

YXU9:25 amLondon

4h 35m

1 stop

ORD1:00 pmChicago O'Hare Intl

$627

Find similar

Air Canada

Dec 2

ORD2:00 pmChicago O'Hare Intl

6h 21m

1 stop

YXU9:21 pmLondon

Dec 24

YXU9:25 amLondon

4h 36m

1 stop

ORD1:01 pmChicago O'Hare Intl

$635

Find similar

United Airlines flights from Chicago to London, Ontario

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

United Airlines

Dec 8

ORD7:10 amChicago O'Hare Intl

8h 55m

2 stops

YXU5:05 pmLondon

Dec 12

YXU5:10 amLondon

5h 03m

1 stop

ORD9:13 amChicago O'Hare Intl

$706

Find similar

United Airlines

Dec 8

ORD8:45 amChicago O'Hare Intl

7h 20m

2 stops

YXU5:05 pmLondon

Dec 12

YXU5:10 amLondon

7h 40m

2 stops

ORD11:50 amChicago O'Hare Intl

$722

Find similar

United Airlines

Dec 24

ORD8:58 pmChicago O'Hare Intl

23h 23m

2 stops

YXU9:21 pmLondon

Dec 26

YXU9:25 amLondon

4h 36m

1 stop

ORD1:01 pmChicago O'Hare Intl

$730

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

ter 12/2

8:18 pm-7:12 pm

2 stops21h 54m

London

ter 12/9

8:10 pm-8:09 pm

2 stops24h 59m

$515

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

ter 12/2

3:43 pm-7:12 pm

3 stops26h 29m

London

ter 12/9

8:10 pm-8:09 pm

2 stops24h 59m

$516

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

ter 12/2

10:12 am-7:12 pm

3 stops32h 00m

London

ter 12/9

8:10 pm-8:01 pm

3 stops24h 51m

$528

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

sex 4/24

9:50 am-5:03 pm

1 stop6h 13m

London

dom 4/26

9:25 am-1:00 pm

1 stop4h 35m

$622

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

qua 12/3

6:48 am-7:12 pm

3 stops35h 24m

London

qua 12/10

8:10 pm-8:09 pm

2 stops24h 59m

$624

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

sex 4/24

8:40 am-9:18 pm

2 stops11h 38m

London

dom 4/26

9:25 am-1:00 pm

1 stop4h 35m

$627

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

ter 12/2

2:00 pm-9:21 pm

1 stop6h 21m

London

qua 12/24

9:25 am-1:01 pm

1 stop4h 36m

$635

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

seg 12/8

7:10 am-5:05 pm

2 stops8h 55m

London

sex 12/12

5:10 am-9:13 am

1 stop5h 03m

$706

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

seg 12/8

8:45 am-5:05 pm

2 stops7h 20m

London

sex 12/12

5:10 am-11:50 am

2 stops7h 40m

$722

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

qua 12/24

8:58 pm-9:21 pm

2 stops23h 23m

London

sex 12/26

9:25 am-1:01 pm

1 stop4h 36m

$730

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 26m.
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.