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Cheap flights from London, Ontario to Chicago from C$ 370

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 18/12. 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

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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.
Air Canada Logo
9:25 a.m. - 1:00 p.m.YXU-ORD
4h 35m1 stop
Air Canada Logo
2:00 p.m. - 9:18 p.m.ORD-YXU
6h 18m1 stop
C$ 682Air Canada
Find Deal
Tue, 28 Apr - Wed, 29 Apr
Air Canada Logo
5:10 a.m. - 2:55 p.m.YXU-ORD
10h 45m2 stops
Air Canada Logo
11:15 a.m. - 9:18 p.m.ORD-YXU
9h 03m2 stops
C$ 755Air Canada
Find Deal
Tue, 28 Apr - Wed, 29 Apr
Air Canada Logo
5:15 a.m. - 1:01 p.m.YXU-ORD
8h 46m1 stop
Air Canada Logo
10:00 a.m. - 5:05 p.m.ORD-YXU
6h 05m1 stop
C$ 789Air Canada
Find Deal
Fri, 28 Nov - Sat, 29 Nov
Multiple Airlines Logo
5:40 p.m. - 11:43 p.m.YXU-ORD
7h 03m2 stops
Multiple Airlines Logo
7:05 a.m. - 5:05 p.m.ORD-YXU
9h 00m2 stops
C$ 813Multiple Airlines
Find Deal
Fri, 28 Nov - Sat, 29 Nov
United Airlines Logo
9:25 a.m. - 1:01 p.m.YXU-ORD
4h 36m1 stop
United Airlines Logo
6:00 p.m. - 5:05 p.m.ORD-YXU
22h 05m2 stops
C$ 884United Airlines
Find Deal
Wed, 17 Dec - Wed, 24 Dec
Air Canada Logo
9:25 a.m. - 3:10 p.m.YXU-ORD
6h 45m1 stop
Air Canada Logo
10:00 a.m. - 5:05 p.m.ORD-YXU
6h 05m1 stop
C$ 908Air Canada
Find Deal
Mon, 17 Nov - Tue, 18 Nov
Multiple Airlines Logo
8:10 p.m. - 1:35 p.m.YXU-ORD
18h 25m1 stop
Multiple Airlines Logo
9:06 p.m. - 7:12 p.m.ORD-YXU
21h 06m2 stops
C$ 947Multiple Airlines
Find Deal
Sun, 30 Nov - Sun, 7 Dec
United Airlines Logo
5:40 p.m. - 10:05 p.m.YXU-ORD
5h 25m1 stop
United Airlines Logo
8:50 a.m. - 9:21 p.m.ORD-YXU
11h 31m2 stops
C$ 961United Airlines
Find Deal
Mon, 17 Nov - Tue, 18 Nov
Air Canada Logo
9:25 a.m. - 3:10 p.m.YXU-ORD
6h 45m1 stop
Air Canada Logo
3:55 p.m. - 9:21 p.m.ORD-YXU
4h 26m1 stop
C$ 967Air Canada
Find Deal
Wed, 17 Dec - Wed, 24 Dec
United Airlines Logo
5:15 a.m. - 2:40 p.m.YXU-ORD
10h 25m2 stops
United Airlines Logo
7:15 a.m. - 5:05 p.m.ORD-YXU
8h 50m2 stops
C$ 969United Airlines
Find Deal
Mon, 17 Nov - Tue, 18 Nov

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
17 Dec
YXU9:25 a.m.London
4h 36m
1 stop
ORD1:01 p.m.Chicago O'Hare Intl
24 Dec
ORD6:00 p.m.Chicago O'Hare Intl
22h 05m
2 stops
YXU5:05 p.m.London
C$ 884
Find similar
United Airlines
17 Nov
YXU5:40 p.m.London
5h 25m
1 stop
ORD10:05 p.m.Chicago O'Hare Intl
18 Nov
ORD8:50 a.m.Chicago O'Hare Intl
11h 31m
2 stops
YXU9:21 p.m.London
C$ 961
Find similar
United Airlines
17 Nov
YXU5:15 a.m.London
10h 25m
2 stops
ORD2:40 p.m.Chicago O'Hare Intl
18 Nov
ORD7:15 a.m.Chicago O'Hare Intl
8h 50m
2 stops
YXU5:05 p.m.London
C$ 969
Find similar

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
28 Apr
YXU9:25 a.m.London
4h 35m
1 stop
ORD1:00 p.m.Chicago O'Hare Intl
29 Apr
ORD2:00 p.m.Chicago O'Hare Intl
6h 18m
1 stop
YXU9:18 p.m.London
C$ 682
Find similar
Air Canada
28 Apr
YXU5:10 a.m.London
10h 45m
2 stops
ORD2:55 p.m.Chicago O'Hare Intl
29 Apr
ORD11:15 a.m.Chicago O'Hare Intl
9h 03m
2 stops
YXU9:18 p.m.London
C$ 755
Find similar
Air Canada
28 Nov
YXU5:15 a.m.London
8h 46m
1 stop
ORD1:01 p.m.Chicago O'Hare Intl
29 Nov
ORD10:00 a.m.Chicago O'Hare Intl
6h 05m
1 stop
YXU5:05 p.m.London
C$ 789
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 96,600 searches. Data last updated 3 November 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 28/4

9:25 a.m.-1:00 p.m.

1 stop4h 35m

Chicago O'Hare Intl

Wed 29/4

2:00 p.m.-9:18 p.m.

1 stop6h 18m

C$ 682

LondonChicago

YXU - ORD

YXUORD

London

Tue 28/4

5:10 a.m.-2:55 p.m.

2 stops10h 45m

Chicago O'Hare Intl

Wed 29/4

11:15 a.m.-9:18 p.m.

2 stops9h 03m

C$ 755

LondonChicago

YXU - ORD

YXUORD

London

Fri 28/11

5:15 a.m.-1:01 p.m.

1 stop8h 46m

Chicago O'Hare Intl

Sat 29/11

10:00 a.m.-5:05 p.m.

1 stop6h 05m

C$ 789

LondonChicago

YXU - ORD

YXUORD

London

Fri 28/11

5:40 p.m.-11:43 p.m.

2 stops7h 03m

Chicago O'Hare Intl

Sat 29/11

7:05 a.m.-5:05 p.m.

2 stops9h 00m

C$ 813

LondonChicago

YXU - ORD

YXUORD

London

Wed 17/12

9:25 a.m.-1:01 p.m.

1 stop4h 36m

Chicago O'Hare Intl

Wed 24/12

6:00 p.m.-5:05 p.m.

2 stops22h 05m

C$ 884

LondonChicago

YXU - ORD

YXUORD

London

Mon 17/11

9:25 a.m.-3:10 p.m.

1 stop6h 45m

Chicago O'Hare Intl

Tue 18/11

10:00 a.m.-5:05 p.m.

1 stop6h 05m

C$ 908

LondonChicago

YXU - ORD

YXUORD

London

Sun 30/11

8:10 p.m.-1:35 p.m.

1 stop18h 25m

Chicago O'Hare Intl

Sun 7/12

9:06 p.m.-7:12 p.m.

2 stops21h 06m

C$ 947

LondonChicago

YXU - ORD

YXUORD

London

Mon 17/11

5:40 p.m.-10:05 p.m.

1 stop5h 25m

Chicago O'Hare Intl

Tue 18/11

8:50 a.m.-9:21 p.m.

2 stops11h 31m

C$ 961

LondonChicago

YXU - ORD

YXUORD

London

Wed 17/12

9:25 a.m.-3:10 p.m.

1 stop6h 45m

Chicago O'Hare Intl

Wed 24/12

3:55 p.m.-9:21 p.m.

1 stop4h 26m

C$ 967

LondonChicago

YXU - ORD

YXUORD

London

Mon 17/11

5:15 a.m.-2:40 p.m.

2 stops10h 25m

Chicago O'Hare Intl

Tue 18/11

7:15 a.m.-5:05 p.m.

2 stops8h 50m

C$ 969

Flights are sorted by cheapest round-trip flights 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

Which 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 67% of people opting to fly with this airline when travelling 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?

    London and Chicago O'Hare Intl are 557.8 km apart from one another. Flights usually cover this in 4h 35m, depending on flying conditions and air traffic around both airports.

  • 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 refresh daily.

  • How old do you have to be to fly from London Airport to Chicago O'Hare Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Schaumburg
Rosemont
Hoffman Estates
Northbrook
Tinley Park
Munster
Hammond
Naperville
Glenview
Great Lakes
Wheeling
Des Plaines
Elk Grove Village
Harvard
Merrillville
Oak Brook
Elmhurst
Kenosha
Skokie
Rockford

Why use momondo?

Why should I use momondo to find a flight deal from London to Chicago?

Finding the right flight to Chicago from London is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

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?

Once you have performed a search for London to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Chicago right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Chicago O'Hare Intl Airport trip

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