Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London, Ontario to Chicago from $198

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to Chicago departing on 9/13. 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
0 bags

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

Find the cheapest flights from London, Ontario to Chicago

Cheap round-trip flights

WestJet Logo
6:00 am - 4:43 pmYXU-ORD
11h 43m1 stop
WestJet Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
$339WestJet
Find Deal
Fri, Oct 3 - Mon, Oct 6
WestJet Logo
6:00 am - 4:43 pmYXU-ORD
11h 43m1 stop
WestJet Logo
2:20 pm - 7:12 pmORD-YXU
27h 52m1 stop
$341WestJet
Find Deal
Fri, Oct 24 - Sun, Oct 26
WestJet Logo
8:00 pm - 4:43 pmYXU-ORD
21h 43m1 stop
WestJet Logo
2:20 pm - 7:12 pmORD-YXU
27h 52m1 stop
$367WestJet
Find Deal
Fri, Oct 24 - Sun, Oct 26
Air Canada Logo
6:15 am - 12:01 pmYXU-ORD
6h 46m2 stops
Air Canada Logo
11:15 am - 5:06 pmORD-YXU
4h 51m1 stop
$454Air Canada
Find Deal
Fri, Oct 24 - Sun, Oct 26
Air Canada Logo
6:10 am - 9:08 amYXU-ORD
3h 58m1 stop
Air Canada Logo
3:50 pm - 9:29 pmORD-YXU
4h 39m1 stop
$473Air Canada
Find Deal
Sat, Sep 13 - Sat, Sep 20
Logo
8:00 pm - 7:50 pmYXU-ORD
24h 50m2 stops
Logo
5:30 pm - 5:12 amORD-YXU
10h 42m1 stop
$486
Find Deal
Sat, Sep 13 - Sat, Sep 20
Logo
6:00 am - 4:43 pmYXU-ORD
11h 43m1 stop
Logo
10:41 pm - 7:12 pmORD-YXU
19h 31m2 stops
$501
Find Deal
Fri, Oct 24 - Sun, Oct 26
Logo
3:40 pm - 11:15 pmYXU-ORD
8h 35m2 stops
Logo
10:38 am - 9:21 pmORD-YXU
9h 43m2 stops
$503
Find Deal
Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
6:10 am - 9:08 amYXU-ORD
3h 58m1 stop
United Airlines Logo
9:55 am - 3:17 pmORD-YXU
4h 22m1 stop
$539United Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21
United Airlines Logo
10:00 am - 7:48 pmYXU-ORD
10h 48m2 stops
United Airlines Logo
6:00 am - 3:17 pmORD-YXU
8h 17m2 stops
$544United Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21

Air Canada flights from London, Ontario to Chicago O'Hare Intl Airport

Our best Air Canada deals on London, Ontario to Chicago O'Hare Intl Airport flight tickets
Air Canada
Oct 24
YXU6:15 amLondon
6h 46m
2 stops
ORD12:01 pmChicago O'Hare Intl
Oct 26
ORD11:15 amChicago O'Hare Intl
4h 51m
1 stop
YXU5:06 pmLondon
$454
Find similar
Air Canada
Sep 13
YXU6:10 amLondon
3h 58m
1 stop
ORD9:08 amChicago O'Hare Intl
Sep 20
ORD3:50 pmChicago O'Hare Intl
4h 39m
1 stop
YXU9:29 pmLondon
$473
Find similar
Air Canada
Aug 19
YXU9:55 amLondon
6h 09m
1 stop
ORD3:04 pmChicago O'Hare Intl
Aug 26
ORD9:55 amChicago O'Hare Intl
4h 07m
1 stop
YXU3:02 pmLondon
$514
Find similar

WestJet flights from London, Ontario to Chicago O'Hare Intl Airport

Our best WestJet deals on London, Ontario to Chicago O'Hare Intl Airport flight tickets
WestJet
Oct 3
YXU6:00 amLondon
11h 43m
1 stop
ORD4:43 pmChicago O'Hare Intl
Oct 6
ORD5:30 pmChicago O'Hare Intl
10h 42m
1 stop
YXU5:12 amLondon
$339
Find similar
WestJet
Oct 24
YXU6:00 amLondon
11h 43m
1 stop
ORD4:43 pmChicago O'Hare Intl
Oct 26
ORD2:20 pmChicago O'Hare Intl
27h 52m
1 stop
YXU7:12 pmLondon
$341
Find similar
WestJet
Oct 24
YXU8:00 pmLondon
21h 43m
1 stop
ORD4:43 pmChicago O'Hare Intl
Oct 26
ORD2:20 pmChicago O'Hare Intl
27h 52m
1 stop
YXU7:12 pmLondon
$367
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to Chicago O'Hare Intl Airport 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 31, 2025.
Use the filters below to find and compare flights from London, Ontario to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

YXU - ORD

YXUORD

London

Fri 10/3

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Mon 10/6

5:30 pm-5:12 am

1 stop10h 42m

$339

LondonChicago

YXU - ORD

YXUORD

London

Fri 10/24

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Sun 10/26

2:20 pm-7:12 pm

1 stop27h 52m

$341

LondonChicago

YXU - ORD

YXUORD

London

Fri 10/24

8:00 pm-4:43 pm

1 stop21h 43m

Chicago O'Hare Intl

Sun 10/26

2:20 pm-7:12 pm

1 stop27h 52m

$367

LondonChicago

YXU - ORD

YXUORD

London

Fri 10/24

6:15 am-12:01 pm

2 stops6h 46m

Chicago O'Hare Intl

Sun 10/26

11:15 am-5:06 pm

1 stop4h 51m

$454

LondonChicago

YXU - ORD

YXUORD

London

Sat 9/13

6:10 am-9:08 am

1 stop3h 58m

Chicago O'Hare Intl

Sat 9/20

3:50 pm-9:29 pm

1 stop4h 39m

$473

LondonChicago

YXU - ORD

YXUORD

London

Sat 9/13

8:00 pm-7:50 pm

2 stops24h 50m

Chicago O'Hare Intl

Sat 9/20

5:30 pm-5:12 am

1 stop10h 42m

$486

LondonChicago

YXU - ORD

YXUORD

London

Fri 10/24

6:00 am-4:43 pm

1 stop11h 43m

Chicago O'Hare Intl

Sun 10/26

10:41 pm-7:12 pm

2 stops19h 31m

$501

LondonChicago

YXU - ORD

YXUORD

London

Fri 10/24

3:40 pm-11:15 pm

2 stops8h 35m

Chicago O'Hare Intl

Sun 10/26

10:38 am-9:21 pm

2 stops9h 43m

$503

LondonChicago

YXU - ORD

YXUORD

London

Sun 9/14

6:10 am-9:08 am

1 stop3h 58m

Chicago O'Hare Intl

Sun 9/21

9:55 am-3:17 pm

1 stop4h 22m

$539

LondonChicago

YXU - ORD

YXUORD

London

Sun 9/14

10:00 am-7:48 pm

2 stops10h 48m

Chicago O'Hare Intl

Sun 9/21

6:00 am-3:17 pm

2 stops8h 17m

$544

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Chicago from

How to get the cheapest flight ticket from London, Ontario to Chicago O'Hare Intl Airport

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 London to Chicago O'Hare Intl?

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

What airlines fly to Chicago O'Hare Intl Airport?

Air Canada, American Airlines and United Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from London, Ontario according to our data. Air Canada is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 3 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from London, Ontario to Chicago O'Hare Intl Airport

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

Cheap London, Ontario to Chicago O'Hare Intl Airport (YXU to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to Chicago O'Hare Intl Airport

Best Price Found

$198

Fastest flight time

3h 58m

Direct flights

None
The best one-way flight to Chicago O'Hare Intl Airport from London, Ontario in the past 72 hours is $198. The best round-trip flight deal from London, Ontario to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $339.
The fastest flight from London, Ontario to Chicago O'Hare Intl Airport takes 3h 58m
There are no direct flights from London, Ontario to Chicago O'Hare Intl Airport. Popular non-direct route for this connection is London Airport - Chicago O'Hare Intl Airport.
Search flight deals

  • How far is London to Chicago O'Hare Intl by plane?

    There are 346.6 mi between London and Chicago O'Hare Intl. A reasonable flight in good conditions will take 3h 58m.

  • When did momondo last update prices for flights from London Airport to Chicago O'Hare Intl Airport?

    Prices for flights from London Airport to Chicago O'Hare Intl Airport are updated daily.

  • How old do you have to be to fly from London Airport to Chicago O'Hare Intl 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 London Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Rockford
Schaumburg
South Haven
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Hammond
Tinley Park
Elgin
Orland Park
Aurora
Janesville
Benton Harbor

Why use momondo?

Why should I use momondo to find a flight deal from London to Chicago?

It is quick and easy to find London to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

Yes. All flights to Chicago from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between London and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Chicago O'Hare Intl Airport 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 8/5
Tue 8/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago