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Cheap flights from London, Ontario to Chicago from $197

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 9/15. 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

Find the cheapest flights from London, Ontario to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
8:40 pm - 4:40 pm
YXU
-
ORD
21h 00m
1 stop
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$487WestJet
Thu, Sep 3 - Sun, Sep 6
WestJet Logo
6:10 am - 4:40 pm
YXU
-
ORD
11h 30m
1 stop
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$519WestJet
Fri, Sep 11 - Fri, Sep 18
Air Canada Logo
10:05 am - 1:23 pm
YXU
-
ORD
4h 18m
1 stop
Air Canada Logo
3:45 pm - 9:40 pm
ORD
-
YXU
4h 55m
1 stop
$550Air Canada
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
6:10 am - 6:17 am
YXU
-
ORD
25h 07m
2 stops
Multiple Airlines Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$554Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
WestJet Logo
6:10 am - 4:40 pm
YXU
-
ORD
11h 30m
1 stop
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$555WestJet
Fri, Sep 11 - Fri, Sep 18
Air Canada Logo
5:40 am - 9:00 am
YXU
-
ORD
4h 20m
1 stop
Air Canada Logo
2:15 pm - 9:40 pm
ORD
-
YXU
6h 25m
1 stop
$561Air Canada
Thu, Oct 1 - Mon, Oct 5
Air Canada Logo
5:40 am - 2:52 pm
YXU
-
ORD
10h 12m
2 stops
Air Canada Logo
9:50 am - 2:55 pm
ORD
-
YXU
4h 05m
1 stop
$564Air Canada
Thu, Oct 1 - Mon, Oct 5
Air Canada Logo
5:40 am - 2:52 pm
YXU
-
ORD
10h 12m
2 stops
Air Canada Logo
8:45 am - 5:45 pm
ORD
-
YXU
8h 00m
2 stops
$567Air Canada
Thu, Oct 1 - Mon, Oct 5
Air Canada Logo
5:40 am - 2:52 pm
YXU
-
ORD
10h 12m
2 stops
Air Canada Logo
8:45 am - 5:45 pm
ORD
-
YXU
8h 00m
2 stops
$568Air Canada
Thu, Oct 1 - Mon, Oct 5
WestJet Logo
6:10 am - 4:40 pm
YXU
-
ORD
11h 30m
1 stop
WestJet Logo
5:30 pm - 5:20 am
ORD
-
YXU
10h 50m
1 stop
$588WestJet
Thu, Oct 1 - Mon, Oct 5

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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
Sep 8
YXU10:05 amLondon
4h 18m
1 stop
ORD1:23 pmChicago O'Hare Intl
Sep 15
ORD3:45 pmChicago O'Hare Intl
4h 55m
1 stop
YXU9:40 pmLondon
$550
Air Canada
Oct 1
YXU5:40 amLondon
4h 20m
1 stop
ORD9:00 amChicago O'Hare Intl
Oct 5
ORD2:15 pmChicago O'Hare Intl
6h 25m
1 stop
YXU9:40 pmLondon
$561
Air Canada
Oct 1
YXU5:40 amLondon
10h 12m
2 stops
ORD2:52 pmChicago O'Hare Intl
Oct 5
ORD9:50 amChicago O'Hare Intl
4h 05m
1 stop
YXU2:55 pmLondon
$564

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
Sep 14
YXU5:40 amLondon
4h 20m
1 stop
ORD9:00 amChicago O'Hare Intl
Sep 21
ORD9:55 amChicago O'Hare Intl
3h 55m
1 stop
YXU2:50 pmLondon
$636
United Airlines
Sep 14
YXU3:30 pmLondon
9h 58m
2 stops
ORD12:28 amChicago O'Hare Intl
Sep 21
ORD12:55 pmChicago O'Hare Intl
7h 45m
2 stops
YXU9:40 pmLondon
$641
United Airlines
Sep 11
YXU10:05 amLondon
7h 24m
2 stops
ORD4:29 pmChicago O'Hare Intl
Sep 18
ORD6:00 amChicago O'Hare Intl
7h 50m
2 stops
YXU2:50 pmLondon
$661

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 August 1, 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 9/3

8:40 pm-4:40 pm

1 stop21h 00m

Chicago O'Hare Intl

Sun 9/6

5:30 pm-5:20 am

1 stop10h 50m

$487

LondonChicago

YXU - ORD

YXUORD

London

Fri 9/11

6:10 am-4:40 pm

1 stop11h 30m

Chicago O'Hare Intl

Fri 9/18

5:30 pm-5:20 am

1 stop10h 50m

$519
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Tue 9/8

10:05 am-1:23 pm

1 stop4h 18m

Chicago O'Hare Intl

Tue 9/15

3:45 pm-9:40 pm

1 stop4h 55m

$550

LondonChicago

YXU - ORD

YXUORD

London

Tue 9/8

6:10 am-6:17 am

2 stops25h 07m

Chicago O'Hare Intl

Tue 9/15

5:30 pm-5:20 am

1 stop10h 50m

$554

LondonChicago

YXU - ORD

YXUORD

London

Fri 9/11

6:10 am-4:40 pm

1 stop11h 30m

Chicago O'Hare Intl

Fri 9/18

5:30 pm-5:20 am

1 stop10h 50m

$555

LondonChicago

YXU - ORD

YXUORD

London

Thu 10/1

5:40 am-9:00 am

1 stop4h 20m

Chicago O'Hare Intl

Mon 10/5

2:15 pm-9:40 pm

1 stop6h 25m

$561

LondonChicago

YXU - ORD

YXUORD

London

Thu 10/1

5:40 am-2:52 pm

2 stops10h 12m

Chicago O'Hare Intl

Mon 10/5

9:50 am-2:55 pm

1 stop4h 05m

$564

LondonChicago

YXU - ORD

YXUORD

London

Thu 10/1

5:40 am-2:52 pm

2 stops10h 12m

Chicago O'Hare Intl

Mon 10/5

8:45 am-5:45 pm

2 stops8h 00m

$567

LondonChicago

YXU - ORD

YXUORD

London

Thu 10/1

5:40 am-2:52 pm

2 stops10h 12m

Chicago O'Hare Intl

Mon 10/5

8:45 am-5:45 pm

2 stops8h 00m

$568

LondonChicago

YXU - ORD

YXUORD

London

Thu 10/1

6:10 am-4:40 pm

1 stop11h 30m

Chicago O'Hare Intl

Mon 10/5

5:30 pm-5:20 am

1 stop10h 50m

$588

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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 50% 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

4h 18m

Direct flights

None
The fastest flight from London, Ontario to Chicago O'Hare Intl Airport takes 4h 18m
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 4h 18m.

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