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Cheap flights from London, Ontario to Chicago from $487

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to Chicago departing on 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:10 am - 9:10 amYXU-ORD
5h 00m1 stop
Air Canada Logo
2:00 pm - 9:18 pmORD-YXU
6h 18m1 stop
$487Air Canada
Find Deal
Tue, Apr 28 - Wed, Apr 29
Air Canada Logo
5:10 am - 2:55 pmYXU-ORD
10h 45m2 stops
Air Canada Logo
11:15 am - 9:18 pmORD-YXU
9h 03m2 stops
$539Air Canada
Find Deal
Tue, Apr 28 - Wed, Apr 29
Air Canada Logo
5:15 am - 1:01 pmYXU-ORD
8h 46m1 stop
Air Canada Logo
10:00 am - 5:05 pmORD-YXU
6h 05m1 stop
$563Air Canada
Find Deal
Fri, Nov 28 - Sat, Nov 29
Multiple Airlines Logo
5:40 pm - 11:43 pmYXU-ORD
7h 03m2 stops
Multiple Airlines Logo
7:05 am - 5:05 pmORD-YXU
9h 00m2 stops
$580Multiple Airlines
Find Deal
Fri, Nov 28 - Sat, Nov 29
Air Canada Logo
9:25 am - 3:10 pmYXU-ORD
6h 45m1 stop
Air Canada Logo
10:00 am - 5:05 pmORD-YXU
6h 05m1 stop
$648Air Canada
Find Deal
Mon, Nov 17 - Tue, Nov 18
Multiple Airlines Logo
8:10 pm - 1:35 pmYXU-ORD
18h 25m1 stop
Multiple Airlines Logo
9:06 pm - 7:12 pmORD-YXU
21h 06m2 stops
$676Multiple Airlines
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Sun, Nov 30 - Sun, Dec 7
United Airlines Logo
5:40 pm - 10:05 pmYXU-ORD
5h 25m1 stop
United Airlines Logo
8:50 am - 9:21 pmORD-YXU
11h 31m2 stops
$686United Airlines
Find Deal
Mon, Nov 17 - Tue, Nov 18
United Airlines Logo
5:15 am - 2:40 pmYXU-ORD
10h 25m2 stops
United Airlines Logo
7:15 am - 5:05 pmORD-YXU
8h 50m2 stops
$692United Airlines
Find Deal
Mon, Nov 17 - Tue, Nov 18
Air Canada Logo
5:15 am - 10:05 amYXU-ORD
5h 50m1 stop
Air Canada Logo
10:00 am - 5:05 pmORD-YXU
6h 05m1 stop
$755Air Canada
Find Deal
Sun, Nov 30 - Sun, Dec 7
Multiple Airlines Logo
5:15 am - 2:11 pmYXU-ORD
9h 56m2 stops
Multiple Airlines Logo
10:38 am - 9:21 pmORD-YXU
9h 43m2 stops
$963Multiple Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7

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
Apr 28
YXU5:10 amLondon
5h 00m
1 stop
ORD9:10 amChicago O'Hare Intl
Apr 29
ORD2:00 pmChicago O'Hare Intl
6h 18m
1 stop
YXU9:18 pmLondon
$487
Find similar
Air Canada
Apr 28
YXU5:10 amLondon
10h 45m
2 stops
ORD2:55 pmChicago O'Hare Intl
Apr 29
ORD11:15 amChicago O'Hare Intl
9h 03m
2 stops
YXU9:18 pmLondon
$539
Find similar
Air Canada
Nov 28
YXU5:15 amLondon
8h 46m
1 stop
ORD1:01 pmChicago O'Hare Intl
Nov 29
ORD10:00 amChicago O'Hare Intl
6h 05m
1 stop
YXU5:05 pmLondon
$563
Find similar

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
Nov 17
YXU5:40 pmLondon
5h 25m
1 stop
ORD10:05 pmChicago O'Hare Intl
Nov 18
ORD8:50 amChicago O'Hare Intl
11h 31m
2 stops
YXU9:21 pmLondon
$686
Find similar
United Airlines
Nov 17
YXU5:15 amLondon
10h 25m
2 stops
ORD2:40 pmChicago O'Hare Intl
Nov 18
ORD7:15 amChicago O'Hare Intl
8h 50m
2 stops
YXU5:05 pmLondon
$692
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 November 3, 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

Tue 4/28

5:10 am-9:10 am

1 stop5h 00m

Chicago O'Hare Intl

Wed 4/29

2:00 pm-9:18 pm

1 stop6h 18m

$487

LondonChicago

YXU - ORD

YXUORD

London

Tue 4/28

5:10 am-2:55 pm

2 stops10h 45m

Chicago O'Hare Intl

Wed 4/29

11:15 am-9:18 pm

2 stops9h 03m

$539

LondonChicago

YXU - ORD

YXUORD

London

Fri 11/28

5:15 am-1:01 pm

1 stop8h 46m

Chicago O'Hare Intl

Sat 11/29

10:00 am-5:05 pm

1 stop6h 05m

$563

LondonChicago

YXU - ORD

YXUORD

London

Fri 11/28

5:40 pm-11:43 pm

2 stops7h 03m

Chicago O'Hare Intl

Sat 11/29

7:05 am-5:05 pm

2 stops9h 00m

$580

LondonChicago

YXU - ORD

YXUORD

London

Mon 11/17

9:25 am-3:10 pm

1 stop6h 45m

Chicago O'Hare Intl

Tue 11/18

10:00 am-5:05 pm

1 stop6h 05m

$648

LondonChicago

YXU - ORD

YXUORD

London

Sun 11/30

8:10 pm-1:35 pm

1 stop18h 25m

Chicago O'Hare Intl

Sun 12/7

9:06 pm-7:12 pm

2 stops21h 06m

$676

LondonChicago

YXU - ORD

YXUORD

London

Mon 11/17

5:40 pm-10:05 pm

1 stop5h 25m

Chicago O'Hare Intl

Tue 11/18

8:50 am-9:21 pm

2 stops11h 31m

$686

LondonChicago

YXU - ORD

YXUORD

London

Mon 11/17

5:15 am-2:40 pm

2 stops10h 25m

Chicago O'Hare Intl

Tue 11/18

7:15 am-5:05 pm

2 stops8h 50m

$692

LondonChicago

YXU - ORD

YXUORD

London

Sun 11/30

5:15 am-10:05 am

1 stop5h 50m

Chicago O'Hare Intl

Sun 12/7

10:00 am-5:05 pm

1 stop6h 05m

$755

LondonChicago

YXU - ORD

YXUORD

London

Sun 11/30

5:15 am-2:11 pm

2 stops9h 56m

Chicago O'Hare Intl

Sun 12/7

10:38 am-9:21 pm

2 stops9h 43m

$963

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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 is the most popular carrier 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 52% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 5 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

Direct flights

None
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.
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  • 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 00m.

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

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