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Cheap flights from London, Ontario to Chicago from $222

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 4/30. 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
1 adult, Economy, 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.
WestJet Logo
5:55 pm - 4:40 pm
YXU
-
ORD
23h 45m
1 stop
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$496WestJet
Thu, May 21 - Thu, May 28
United Airlines Logo
5:40 pm - 7:46 am
YXU
-
ORD
15h 06m
2 stops
United Airlines Logo
9:50 am - 5:04 pm
ORD
-
YXU
6h 14m
1 stop
$506United Airlines
Sun, Apr 19 - Thu, Apr 23
Air Canada Logo
9:25 am - 1:05 pm
YXU
-
ORD
4h 40m
1 stop
Air Canada Logo
3:50 pm - 9:38 pm
ORD
-
YXU
4h 48m
1 stop
$510Air Canada
Thu, Apr 30 - Mon, May 4
Air Canada Logo
9:25 am - 1:05 pm
YXU
-
ORD
4h 40m
1 stop
Air Canada Logo
11:05 am - 9:38 pm
ORD
-
YXU
9h 33m
2 stops
$513Air Canada
Thu, Apr 30 - Mon, May 4
Air Canada Logo
9:30 am - 1:22 pm
YXU
-
ORD
4h 52m
1 stop
Air Canada Logo
9:50 am - 2:55 pm
ORD
-
YXU
4h 05m
1 stop
$514Air Canada
Fri, Jul 31 - Sun, Aug 2
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
$516Air Canada
Fri, May 1 - Sun, May 3
Air Canada Logo
5:40 am - 9:05 am
YXU
-
ORD
4h 25m
1 stop
Air Canada Logo
8:45 am - 5:33 pm
ORD
-
YXU
7h 48m
2 stops
$536Air Canada
Thu, May 21 - Thu, May 28
United Airlines Logo
5:10 am - 9:50 am
YXU
-
ORD
5h 40m
1 stop
United Airlines Logo
4:15 pm - 9:19 pm
ORD
-
YXU
4h 04m
1 stop
$571United Airlines
Sun, Apr 19 - Thu, Apr 23
United Airlines Logo
5:40 pm - 10:03 pm
YXU
-
ORD
5h 23m
1 stop
United Airlines Logo
9:50 am - 5:04 pm
ORD
-
YXU
6h 14m
1 stop
$572United Airlines
Sun, Apr 19 - Thu, Apr 23
United Airlines Logo
6:10 pm - 7:46 am
YXU
-
ORD
14h 36m
2 stops
United Airlines Logo
6:00 am - 5:33 pm
ORD
-
YXU
10h 33m
2 stops
$576United Airlines
Fri, May 1 - Sun, May 3

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 30
YXU9:25 amLondon
4h 40m
1 stop
ORD1:05 pmChicago O'Hare Intl
May 4
ORD3:50 pmChicago O'Hare Intl
4h 48m
1 stop
YXU9:38 pmLondon
$510
Air Canada
Apr 30
YXU9:25 amLondon
4h 40m
1 stop
ORD1:05 pmChicago O'Hare Intl
May 4
ORD11:05 amChicago O'Hare Intl
9h 33m
2 stops
YXU9:38 pmLondon
$513
Air Canada
Jul 31
YXU9:30 amLondon
4h 52m
1 stop
ORD1:22 pmChicago O'Hare Intl
Aug 2
ORD9:50 amChicago O'Hare Intl
4h 05m
1 stop
YXU2:55 pmLondon
$514

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
Apr 19
YXU5:40 pmLondon
15h 06m
2 stops
ORD7:46 amChicago O'Hare Intl
Apr 23
ORD9:50 amChicago O'Hare Intl
6h 14m
1 stop
YXU5:04 pmLondon
$506
United Airlines
Apr 19
YXU5:10 amLondon
5h 40m
1 stop
ORD9:50 amChicago O'Hare Intl
Apr 23
ORD4:15 pmChicago O'Hare Intl
4h 04m
1 stop
YXU9:19 pmLondon
$571
United Airlines
Apr 19
YXU5:40 pmLondon
5h 23m
1 stop
ORD10:03 pmChicago O'Hare Intl
Apr 23
ORD9:50 amChicago O'Hare Intl
6h 14m
1 stop
YXU5:04 pmLondon
$572

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 March 20, 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

LondonChicago

YXU - ORD

YXUORD

London

Thu 5/21

5:55 pm-4:40 pm

1 stop23h 45m

Chicago O'Hare Intl

Thu 5/28

5:30 pm-5:20 am

1 stop10h 50m

$496

LondonChicago

YXU - ORD

YXUORD

London

Sun 4/19

5:40 pm-7:46 am

2 stops15h 06m

Chicago O'Hare Intl

Thu 4/23

9:50 am-5:04 pm

1 stop6h 14m

$506

LondonChicago

YXU - ORD

YXUORD

London

Thu 4/30

9:25 am-1:05 pm

1 stop4h 40m

Chicago O'Hare Intl

Mon 5/4

3:50 pm-9:38 pm

1 stop4h 48m

$510

LondonChicago

YXU - ORD

YXUORD

London

Thu 4/30

9:25 am-1:05 pm

1 stop4h 40m

Chicago O'Hare Intl

Mon 5/4

11:05 am-9:38 pm

2 stops9h 33m

$513
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Fri 7/31

9:30 am-1:22 pm

1 stop4h 52m

Chicago O'Hare Intl

Sun 8/2

9:50 am-2:55 pm

1 stop4h 05m

$514

LondonChicago

YXU - ORD

YXUORD

London

Fri 5/1

12:20 pm-4:59 pm

1 stop5h 39m

Chicago O'Hare Intl

Sun 5/3

2:15 pm-9:38 pm

1 stop6h 23m

$516

LondonChicago

YXU - ORD

YXUORD

London

Thu 5/21

5:40 am-9:05 am

1 stop4h 25m

Chicago O'Hare Intl

Thu 5/28

8:45 am-5:33 pm

2 stops7h 48m

$536

LondonChicago

YXU - ORD

YXUORD

London

Sun 4/19

5:10 am-9:50 am

1 stop5h 40m

Chicago O'Hare Intl

Thu 4/23

4:15 pm-9:19 pm

1 stop4h 04m

$571

LondonChicago

YXU - ORD

YXUORD

London

Sun 4/19

5:40 pm-10:03 pm

1 stop5h 23m

Chicago O'Hare Intl

Thu 4/23

9:50 am-5:04 pm

1 stop6h 14m

$572

LondonChicago

YXU - ORD

YXUORD

London

Fri 5/1

6:10 pm-7:46 am

2 stops14h 36m

Chicago O'Hare Intl

Sun 5/3

6:00 am-5:33 pm

2 stops10h 33m

$576

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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?

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, 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 23m

Direct flights

None
The fastest flight from London, Ontario to Chicago O'Hare Intl Airport takes 5h 23m
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 23m.

  • 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
Kenosha
Oak Brook
Joliet
Racine
Janesville
Hammond
Aurora
Tinley Park
Elgin
South Holland

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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