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.

$278 Cheap Flights from Chicago to London in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Chicago to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:30 pm - 5:12 am

ORD

YXU

10h 42m1 stop

8:00 pm - 4:43 pm

YXU

ORD

21h 43m1 stop

$278WestJet

Mon, May 25 - Thu, May 28

5:30 pm - 5:12 am

ORD

YXU

10h 42m1 stop

8:00 pm - 4:43 pm

YXU

ORD

21h 43m1 stop

$283WestJet

Mon, May 25 - Thu, May 28

9:00 am - 6:35 am

ORD

YXU

20h 35m2 stops

8:10 pm - 1:35 pm

YXU

ORD

18h 25m1 stop

$411Multiple Airlines

Thu, Feb 12 - Thu, Feb 19

5:30 pm - 1:45 pm

ORD

YXU

19h 15m2 stops

8:00 pm - 4:43 pm

YXU

ORD

21h 43m1 stop

$521WestJet

Mon, May 25 - Thu, May 28

10:00 am - 5:05 pm

ORD

YXU

6h 05m1 stop

9:25 am - 3:10 pm

YXU

ORD

6h 45m1 stop

$554Air Canada

Sat, Feb 14 - Tue, Feb 17

10:00 am - 5:05 pm

ORD

YXU

6h 05m1 stop

5:10 am - 11:06 am

YXU

ORD

6h 56m2 stops

$562Air Canada

Sat, Feb 14 - Sat, Feb 21

7:15 am - 5:05 pm

ORD

YXU

8h 50m2 stops

5:10 am - 11:06 am

YXU

ORD

6h 56m2 stops

$571Air Canada

Tue, Feb 24 - Wed, Feb 25

8:45 am - 5:33 pm

ORD

YXU

7h 48m2 stops

12:20 pm - 8:08 pm

YXU

ORD

8h 48m2 stops

$645Air Canada

Sat, May 23 - Tue, May 26

10:53 am - 9:38 pm

ORD

YXU

9h 45m2 stops

12:20 pm - 8:08 pm

YXU

ORD

8h 48m2 stops

$672Air Canada

Mon, May 25 - Thu, May 28

6:00 am - 5:33 pm

ORD

YXU

10h 33m2 stops

9:30 am - 4:37 pm

YXU

ORD

8h 07m2 stops

$728United Airlines

Mon, May 25 - Thu, May 28

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 42m

1 stop

YXU5:12 amLondon

May 28

YXU8:00 pmLondon

21h 43m

1 stop

ORD4:43 pmChicago O'Hare Intl

$278

Find similar

WestJet

May 25

ORD5:30 pmChicago O'Hare Intl

10h 42m

1 stop

YXU5:12 amLondon

May 28

YXU8:00 pmLondon

21h 43m

1 stop

ORD4:43 pmChicago O'Hare Intl

$283

Find similar

WestJet

May 25

ORD5:30 pmChicago O'Hare Intl

19h 15m

2 stops

YXU1:45 pmLondon

May 28

YXU8:00 pmLondon

21h 43m

1 stop

ORD4:43 pmChicago O'Hare Intl

$521

Find similar

United Airlines flights from Chicago to London, Ontario

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

United Airlines

May 25

ORD6:00 amChicago O'Hare Intl

10h 33m

2 stops

YXU5:33 pmLondon

May 28

YXU9:30 amLondon

8h 07m

2 stops

ORD4:37 pmChicago O'Hare Intl

$728

Find similar

United Airlines

Feb 14

ORD10:55 amChicago O'Hare Intl

9h 26m

2 stops

YXU9:21 pmLondon

Feb 17

YXU9:25 amLondon

11h 28m

2 stops

ORD7:53 pmChicago O'Hare Intl

$744

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 5/25

5:30 pm-5:12 am

1 stop10h 42m

London

Thu 5/28

8:00 pm-4:43 pm

1 stop21h 43m

$278

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 5/25

5:30 pm-5:12 am

1 stop10h 42m

London

Thu 5/28

8:00 pm-4:43 pm

1 stop21h 43m

$283

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 2/12

9:00 am-6:35 am

2 stops20h 35m

London

Thu 2/19

8:10 pm-1:35 pm

1 stop18h 25m

$411

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 5/25

5:30 pm-1:45 pm

2 stops19h 15m

London

Thu 5/28

8:00 pm-4:43 pm

1 stop21h 43m

$521

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 2/14

10:00 am-5:05 pm

1 stop6h 05m

London

Tue 2/17

9:25 am-3:10 pm

1 stop6h 45m

$554

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 2/14

10:00 am-5:05 pm

1 stop6h 05m

London

Sat 2/21

5:10 am-11:06 am

2 stops6h 56m

$562

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Tue 2/24

7:15 am-5:05 pm

2 stops8h 50m

London

Wed 2/25

5:10 am-11:06 am

2 stops6h 56m

$571

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 5/23

8:45 am-5:33 pm

2 stops7h 48m

London

Tue 5/26

12:20 pm-8:08 pm

2 stops8h 48m

$645

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 5/25

10:53 am-9:38 pm

2 stops9h 45m

London

Thu 5/28

12:20 pm-8:08 pm

2 stops8h 48m

$672

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 5/25

6:00 am-5:33 pm

2 stops10h 33m

London

Thu 5/28

9:30 am-4:37 pm

2 stops8h 07m

$728

Flights are sorted by cheapest round-trip flights first.

Sorted 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

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 36% 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 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	3h 58m
Direct flights	None

The fastest flight from Chicago to London, Ontario takes 3h 58m

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 3h 58m.
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.

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.