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Cheap flights from London, Ontario to Chicago from $186

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 1/29. 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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0 bags

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Find the cheapest flights from London, Ontario to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:10 pm - 1:35 pm
YXU
-
ORD
18h 25m1 stop
Multiple Airlines Logo
2:18 pm - 6:34 am
ORD
-
YXU
39h 16m2 stops
$347Multiple Airlines
Thu, Jan 15 - Wed, Jan 21
Multiple Airlines Logo
7:30 am - 4:51 pm
YXU
-
ORD
34h 21m2 stops
Multiple Airlines Logo
2:20 pm - 6:34 am
ORD
-
YXU
15h 14m1 stop
$417Multiple Airlines
Fri, Jan 23 - Mon, Jan 26
Air Canada Logo
9:50 am - 3:10 pm
YXU
-
ORD
6h 20m1 stop
Air Canada Logo
3:55 pm - 9:21 pm
ORD
-
YXU
4h 26m1 stop
$469Air Canada
Thu, Jan 15 - Wed, Jan 21
Air Canada Logo
9:50 am - 8:10 pm
YXU
-
ORD
11h 20m2 stops
Air Canada Logo
7:15 am - 5:05 pm
ORD
-
YXU
8h 50m2 stops
$475Air Canada
Thu, Jan 15 - Wed, Jan 21
Air Canada Logo
5:10 am - 9:13 am
YXU
-
ORD
5h 03m1 stop
Air Canada Logo
10:00 am - 5:05 pm
ORD
-
YXU
6h 05m1 stop
$494Air Canada
Fri, Jan 23 - Mon, Jan 26
Air Canada Logo
5:10 am - 9:10 am
YXU
-
ORD
5h 00m1 stop
Air Canada Logo
12:50 pm - 9:18 pm
ORD
-
YXU
7h 28m2 stops
$498Air Canada
Sun, Apr 12 - Thu, Apr 16
Air Canada Logo
5:10 am - 9:10 am
YXU
-
ORD
5h 00m1 stop
Air Canada Logo
9:50 am - 5:03 pm
ORD
-
YXU
6h 13m1 stop
$502Air Canada
Sun, Apr 12 - Thu, Apr 16
Air Canada Logo
5:10 am - 9:15 am
YXU
-
ORD
5h 05m1 stop
Air Canada Logo
3:55 pm - 9:21 pm
ORD
-
YXU
4h 26m1 stop
$505Air Canada
Sat, Jan 31 - Sat, Feb 7
Air Canada Logo
5:10 am - 11:06 am
YXU
-
ORD
6h 56m2 stops
Air Canada Logo
3:55 pm - 9:21 pm
ORD
-
YXU
4h 26m1 stop
$514Air Canada
Sat, Jan 31 - Sat, Feb 7
Air Canada Logo
5:10 am - 11:43 am
YXU
-
ORD
7h 33m2 stops
Air Canada Logo
12:50 pm - 9:18 pm
ORD
-
YXU
7h 28m2 stops
$551Air Canada
Sun, Apr 12 - Thu, Apr 16

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
Jan 15
YXU9:50 amLondon
6h 20m
1 stop
ORD3:10 pmChicago O'Hare Intl
Jan 21
ORD3:55 pmChicago O'Hare Intl
4h 26m
1 stop
YXU9:21 pmLondon
$469
Find similar
Air Canada
Jan 15
YXU9:50 amLondon
11h 20m
2 stops
ORD8:10 pmChicago O'Hare Intl
Jan 21
ORD7:15 amChicago O'Hare Intl
8h 50m
2 stops
YXU5:05 pmLondon
$475
Find similar
Air Canada
Jan 23
YXU5:10 amLondon
5h 03m
1 stop
ORD9:13 amChicago O'Hare Intl
Jan 26
ORD10:00 amChicago O'Hare Intl
6h 05m
1 stop
YXU5:05 pmLondon
$494
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
Jan 23
YXU5:10 amLondon
7h 36m
2 stops
ORD11:46 amChicago O'Hare Intl
Jan 26
ORD10:52 amChicago O'Hare Intl
9h 28m
2 stops
YXU9:20 pmLondon
$553
Find similar
United Airlines
Jan 31
YXU5:10 amLondon
7h 36m
2 stops
ORD11:46 amChicago O'Hare Intl
Feb 7
ORD1:00 pmChicago O'Hare Intl
7h 21m
2 stops
YXU9:21 pmLondon
$561
Find similar
United Airlines
Dec 26
YXU5:10 amLondon
5h 55m
1 stop
ORD10:05 amChicago O'Hare Intl
Dec 30
ORD2:00 pmChicago O'Hare Intl
6h 21m
1 stop
YXU9:21 pmLondon
$755
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 December 18, 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

Thu 1/15

8:10 pm-1:35 pm

1 stop18h 25m

Chicago O'Hare Intl

Wed 1/21

2:18 pm-6:34 am

2 stops39h 16m

$347

LondonChicago

YXU - ORD

YXUORD

London

Fri 1/23

7:30 am-4:51 pm

2 stops34h 21m

Chicago O'Hare Intl

Mon 1/26

2:20 pm-6:34 am

1 stop15h 14m

$417

LondonChicago

YXU - ORD

YXUORD

London

Thu 1/15

9:50 am-3:10 pm

1 stop6h 20m

Chicago O'Hare Intl

Wed 1/21

3:55 pm-9:21 pm

1 stop4h 26m

$469

LondonChicago

YXU - ORD

YXUORD

London

Thu 1/15

9:50 am-8:10 pm

2 stops11h 20m

Chicago O'Hare Intl

Wed 1/21

7:15 am-5:05 pm

2 stops8h 50m

$475

LondonChicago

YXU - ORD

YXUORD

London

Fri 1/23

5:10 am-9:13 am

1 stop5h 03m

Chicago O'Hare Intl

Mon 1/26

10:00 am-5:05 pm

1 stop6h 05m

$494

LondonChicago

YXU - ORD

YXUORD

London

Sun 4/12

5:10 am-9:10 am

1 stop5h 00m

Chicago O'Hare Intl

Thu 4/16

12:50 pm-9:18 pm

2 stops7h 28m

$498

LondonChicago

YXU - ORD

YXUORD

London

Sun 4/12

5:10 am-9:10 am

1 stop5h 00m

Chicago O'Hare Intl

Thu 4/16

9:50 am-5:03 pm

1 stop6h 13m

$502

LondonChicago

YXU - ORD

YXUORD

London

Sat 1/31

5:10 am-9:15 am

1 stop5h 05m

Chicago O'Hare Intl

Sat 2/7

3:55 pm-9:21 pm

1 stop4h 26m

$505

LondonChicago

YXU - ORD

YXUORD

London

Sat 1/31

5:10 am-11:06 am

2 stops6h 56m

Chicago O'Hare Intl

Sat 2/7

3:55 pm-9:21 pm

1 stop4h 26m

$514

LondonChicago

YXU - ORD

YXUORD

London

Sun 4/12

5:10 am-11:43 am

2 stops7h 33m

Chicago O'Hare Intl

Thu 4/16

12:50 pm-9:18 pm

2 stops7h 28m

$551

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 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 55m

Direct flights

None
The fastest flight from London, Ontario to Chicago O'Hare Intl Airport takes 5h 55m
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

  • 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 55m.

  • 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
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Orland Park
Racine
Hammond
Janesville
Tinley Park
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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