Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London, Ontario to Chicago from $276

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 6/12. 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

Enter your travel dates to find the best prices.
Air Canada Logo
5:10 am - 9:00 am
YXU
-
ORD
4h 50m
1 stop
Air Canada Logo
3:50 pm - 9:38 pm
ORD
-
YXU
4h 48m
1 stop
$484Air Canada
Sun, May 17 - Tue, May 26
Air Canada Logo
5:10 am - 9:00 am
YXU
-
ORD
4h 50m
1 stop
Air Canada Logo
2:15 pm - 9:38 pm
ORD
-
YXU
6h 23m
1 stop
$508Air Canada
Sat, May 23 - Wed, May 27
Air Canada Logo
12:20 pm - 4:59 pm
YXU
-
ORD
5h 39m
1 stop
Air Canada Logo
2:15 pm - 9:38 pm
ORD
-
YXU
6h 23m
1 stop
$510Air Canada
Sat, May 23 - Wed, May 27
Air Canada Logo
5:10 am - 2:53 pm
YXU
-
ORD
10h 43m
2 stops
Air Canada Logo
2:15 pm - 9:38 pm
ORD
-
YXU
6h 23m
1 stop
$511Air Canada
Sat, May 23 - Wed, May 27
Air Canada Logo
5:10 am - 2:53 pm
YXU
-
ORD
10h 43m
2 stops
Air Canada Logo
2:15 pm - 9:38 pm
ORD
-
YXU
6h 23m
1 stop
$513Air Canada
Sat, May 23 - Wed, May 27
Air Canada Logo
5:10 am - 9:00 am
YXU
-
ORD
4h 50m
1 stop
Air Canada Logo
8:45 am - 9:38 pm
ORD
-
YXU
11h 53m
2 stops
$514Air Canada
Sun, May 17 - Tue, May 26
Air Canada Logo
12:20 pm - 4:59 pm
YXU
-
ORD
5h 39m
1 stop
Air Canada Logo
3:50 pm - 9:38 pm
ORD
-
YXU
4h 48m
1 stop
$535Air Canada
Sat, May 23 - Wed, May 27
Air Canada Logo
9:30 am - 2:55 pm
YXU
-
ORD
6h 25m
1 stop
Air Canada Logo
9:55 am - 2:58 pm
ORD
-
YXU
4h 03m
1 stop
$536Air Canada
Mon, Jun 1 - Sun, Jun 7
Air Canada Logo
12:20 pm - 8:08 pm
YXU
-
ORD
8h 48m
2 stops
Air Canada Logo
3:50 pm - 9:38 pm
ORD
-
YXU
4h 48m
1 stop
$538Air Canada
Sat, May 23 - Wed, May 27
Air Canada Logo
12:20 pm - 8:08 pm
YXU
-
ORD
8h 48m
2 stops
Air Canada Logo
2:15 pm - 9:38 pm
ORD
-
YXU
6h 23m
1 stop
$539Air Canada
Sat, May 23 - Wed, May 27

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

Our best United Airlines deals on London, Ontario to Chicago O'Hare Intl Airport flight tickets
United Airlines
Jun 17
YXU10:05 amLondon
6h 45m
1 stop
ORD3:50 pmChicago O'Hare Intl
Jun 24
ORD5:00 amChicago O'Hare Intl
8h 57m
2 stops
YXU2:57 pmLondon
$604
United Airlines
May 24
YXU5:10 amLondon
6h 40m
2 stops
ORD10:50 amChicago O'Hare Intl
May 26
ORD4:37 pmChicago O'Hare Intl
4h 01m
1 stop
YXU9:38 pmLondon
$610
United Airlines
Jun 15
YXU5:10 amLondon
5h 35m
1 stop
ORD9:45 amChicago O'Hare Intl
Jun 22
ORD8:40 pmChicago O'Hare Intl
11h 37m
1 stop
YXU9:17 amLondon
$616

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
May 17
YXU5:10 amLondon
4h 50m
1 stop
ORD9:00 amChicago O'Hare Intl
May 26
ORD3:50 pmChicago O'Hare Intl
4h 48m
1 stop
YXU9:38 pmLondon
$484
Air Canada
May 23
YXU5:10 amLondon
4h 50m
1 stop
ORD9:00 amChicago O'Hare Intl
May 27
ORD2:15 pmChicago O'Hare Intl
6h 23m
1 stop
YXU9:38 pmLondon
$508
Air Canada
May 23
YXU12:20 pmLondon
5h 39m
1 stop
ORD4:59 pmChicago O'Hare Intl
May 27
ORD2:15 pmChicago O'Hare Intl
6h 23m
1 stop
YXU9:38 pmLondon
$510

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 May 4, 2026.
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

Cheapest round-trip
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Sun 5/17

5:10 am-9:00 am

1 stop4h 50m

Chicago O'Hare Intl

Tue 5/26

3:50 pm-9:38 pm

1 stop4h 48m

$484

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/23

5:10 am-9:00 am

1 stop4h 50m

Chicago O'Hare Intl

Wed 5/27

2:15 pm-9:38 pm

1 stop6h 23m

$508

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/23

12:20 pm-4:59 pm

1 stop5h 39m

Chicago O'Hare Intl

Wed 5/27

2:15 pm-9:38 pm

1 stop6h 23m

$510

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/23

5:10 am-2:53 pm

2 stops10h 43m

Chicago O'Hare Intl

Wed 5/27

2:15 pm-9:38 pm

1 stop6h 23m

$511

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/23

5:10 am-2:53 pm

2 stops10h 43m

Chicago O'Hare Intl

Wed 5/27

2:15 pm-9:38 pm

1 stop6h 23m

$513

LondonChicago

YXU - ORD

YXUORD

London

Sun 5/17

5:10 am-9:00 am

1 stop4h 50m

Chicago O'Hare Intl

Tue 5/26

8:45 am-9:38 pm

2 stops11h 53m

$514

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/23

12:20 pm-4:59 pm

1 stop5h 39m

Chicago O'Hare Intl

Wed 5/27

3:50 pm-9:38 pm

1 stop4h 48m

$535

LondonChicago

YXU - ORD

YXUORD

London

Mon 6/1

9:30 am-2:55 pm

1 stop6h 25m

Chicago O'Hare Intl

Sun 6/7

9:55 am-2:58 pm

1 stop4h 03m

$536

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/23

12:20 pm-8:08 pm

2 stops8h 48m

Chicago O'Hare Intl

Wed 5/27

3:50 pm-9:38 pm

1 stop4h 48m

$538

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/23

12:20 pm-8:08 pm

2 stops8h 48m

Chicago O'Hare Intl

Wed 5/27

2:15 pm-9:38 pm

1 stop6h 23m

$539

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?

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, United Airlines and American 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 48% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 4 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

Fastest flight time

5h 35m

Direct flights

None
The fastest flight from London, Ontario to Chicago O'Hare Intl Airport takes 5h 35m
There are no direct flights from London, Ontario to Chicago O'Hare Intl Airport. There are no popular flight routes from London, Ontario to Chicago O'Hare Intl Airport.
Search flight deals

Frequently asked questions about flying from London, Ontario to Chicago O'Hare Intl Airport

  • 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 5h 35m.

  • 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
Schaumburg
South Haven
Rockford
Merrillville
Gurnee
Rosemont
Naperville
New Buffalo
Orland Park
Oak Brook
Kenosha
Joliet
Aurora
Janesville
Racine
Hammond
Tinley Park
Elgin
Evanston

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
Wed 6/3
Wed 6/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago