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Cheap flights from London, Ontario to Chicago from C$ 375

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 31/1. 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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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 p.m. - 1:35 p.m.
YXU
-
ORD
18h 25m1 stop
Multiple Airlines Logo
2:18 p.m. - 6:34 a.m.
ORD
-
YXU
39h 16m2 stops
C$ 478Multiple Airlines
Thu, 15 Jan - Wed, 21 Jan
Multiple Airlines Logo
7:30 a.m. - 4:51 p.m.
YXU
-
ORD
34h 21m2 stops
Multiple Airlines Logo
2:20 p.m. - 6:34 a.m.
ORD
-
YXU
15h 14m1 stop
C$ 575Multiple Airlines
Fri, 23 Jan - Mon, 26 Jan
Air Canada Logo
9:50 a.m. - 3:10 p.m.
YXU
-
ORD
6h 20m1 stop
Air Canada Logo
3:55 p.m. - 9:21 p.m.
ORD
-
YXU
4h 26m1 stop
C$ 646Air Canada
Thu, 15 Jan - Wed, 21 Jan
Air Canada Logo
9:50 a.m. - 8:10 p.m.
YXU
-
ORD
11h 20m2 stops
Air Canada Logo
7:15 a.m. - 5:05 p.m.
ORD
-
YXU
8h 50m2 stops
C$ 654Air Canada
Thu, 15 Jan - Wed, 21 Jan
Air Canada Logo
5:10 a.m. - 9:13 a.m.
YXU
-
ORD
5h 03m1 stop
Air Canada Logo
10:00 a.m. - 5:05 p.m.
ORD
-
YXU
6h 05m1 stop
C$ 681Air Canada
Fri, 23 Jan - Mon, 26 Jan
Air Canada Logo
5:10 a.m. - 9:10 a.m.
YXU
-
ORD
5h 00m1 stop
Air Canada Logo
12:50 p.m. - 9:18 p.m.
ORD
-
YXU
7h 28m2 stops
C$ 686Air Canada
Sun, 12 Apr - Thu, 16 Apr
Air Canada Logo
9:25 a.m. - 1:00 p.m.
YXU
-
ORD
4h 35m1 stop
Air Canada Logo
9:50 a.m. - 5:03 p.m.
ORD
-
YXU
6h 13m1 stop
C$ 692Air Canada
Sun, 12 Apr - Thu, 16 Apr
Air Canada Logo
9:25 a.m. - 1:00 p.m.
YXU
-
ORD
4h 35m1 stop
Air Canada Logo
12:50 p.m. - 9:18 p.m.
ORD
-
YXU
7h 28m2 stops
C$ 696Air Canada
Sun, 12 Apr - Thu, 16 Apr
Air Canada Logo
5:10 a.m. - 11:06 a.m.
YXU
-
ORD
6h 56m2 stops
Air Canada Logo
3:55 p.m. - 9:21 p.m.
ORD
-
YXU
4h 26m1 stop
C$ 708Air Canada
Sat, 31 Jan - Sat, 7 Feb
Air Canada Logo
5:10 a.m. - 11:43 a.m.
YXU
-
ORD
7h 33m2 stops
Air Canada Logo
12:50 p.m. - 9:18 p.m.
ORD
-
YXU
7h 28m2 stops
C$ 759Air Canada
Sun, 12 Apr - Thu, 16 Apr

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
15 Jan
YXU9:50 a.m.London
6h 20m
1 stop
ORD3:10 p.m.Chicago O'Hare Intl
21 Jan
ORD3:55 p.m.Chicago O'Hare Intl
4h 26m
1 stop
YXU9:21 p.m.London
C$ 646
Find similar
Air Canada
15 Jan
YXU9:50 a.m.London
11h 20m
2 stops
ORD8:10 p.m.Chicago O'Hare Intl
21 Jan
ORD7:15 a.m.Chicago O'Hare Intl
8h 50m
2 stops
YXU5:05 p.m.London
C$ 654
Find similar
Air Canada
23 Jan
YXU5:10 a.m.London
5h 03m
1 stop
ORD9:13 a.m.Chicago O'Hare Intl
26 Jan
ORD10:00 a.m.Chicago O'Hare Intl
6h 05m
1 stop
YXU5:05 p.m.London
C$ 681
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
23 Jan
YXU5:10 a.m.London
7h 36m
2 stops
ORD11:46 a.m.Chicago O'Hare Intl
26 Jan
ORD10:52 a.m.Chicago O'Hare Intl
9h 28m
2 stops
YXU9:20 p.m.London
C$ 762
Find similar
United Airlines
31 Jan
YXU5:10 a.m.London
7h 36m
2 stops
ORD11:46 a.m.Chicago O'Hare Intl
7 Feb
ORD1:00 p.m.Chicago O'Hare Intl
7h 21m
2 stops
YXU9:21 p.m.London
C$ 773
Find similar
United Airlines
26 Dec
YXU5:10 a.m.London
5h 55m
1 stop
ORD10:05 a.m.Chicago O'Hare Intl
30 Dec
ORD2:00 p.m.Chicago O'Hare Intl
6h 21m
1 stop
YXU9:21 p.m.London
C$ 1,040
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 18 December 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 15/1

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

1 stop18h 25m

Chicago O'Hare Intl

Wed 21/1

2:18 p.m.-6:34 a.m.

2 stops39h 16m

C$ 478

LondonChicago

YXU - ORD

YXUORD

London

Fri 23/1

7:30 a.m.-4:51 p.m.

2 stops34h 21m

Chicago O'Hare Intl

Mon 26/1

2:20 p.m.-6:34 a.m.

1 stop15h 14m

C$ 575

LondonChicago

YXU - ORD

YXUORD

London

Thu 15/1

9:50 a.m.-3:10 p.m.

1 stop6h 20m

Chicago O'Hare Intl

Wed 21/1

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

1 stop4h 26m

C$ 646

LondonChicago

YXU - ORD

YXUORD

London

Thu 15/1

9:50 a.m.-8:10 p.m.

2 stops11h 20m

Chicago O'Hare Intl

Wed 21/1

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

2 stops8h 50m

C$ 654

LondonChicago

YXU - ORD

YXUORD

London

Fri 23/1

5:10 a.m.-9:13 a.m.

1 stop5h 03m

Chicago O'Hare Intl

Mon 26/1

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

1 stop6h 05m

C$ 681

LondonChicago

YXU - ORD

YXUORD

London

Sun 12/4

5:10 a.m.-9:10 a.m.

1 stop5h 00m

Chicago O'Hare Intl

Thu 16/4

12:50 p.m.-9:18 p.m.

2 stops7h 28m

C$ 686

LondonChicago

YXU - ORD

YXUORD

London

Sun 12/4

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

1 stop4h 35m

Chicago O'Hare Intl

Thu 16/4

9:50 a.m.-5:03 p.m.

1 stop6h 13m

C$ 692

LondonChicago

YXU - ORD

YXUORD

London

Sun 12/4

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

1 stop4h 35m

Chicago O'Hare Intl

Thu 16/4

12:50 p.m.-9:18 p.m.

2 stops7h 28m

C$ 696

LondonChicago

YXU - ORD

YXUORD

London

Sat 31/1

5:10 a.m.-11:06 a.m.

2 stops6h 56m

Chicago O'Hare Intl

Sat 7/2

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

1 stop4h 26m

C$ 708

LondonChicago

YXU - ORD

YXUORD

London

Sun 12/4

5:10 a.m.-11:43 a.m.

2 stops7h 33m

Chicago O'Hare Intl

Thu 16/4

12:50 p.m.-9:18 p.m.

2 stops7h 28m

C$ 759

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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

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 66% 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

Fastest flight time

4h 35m

Direct flights

None
The fastest flight from London, Ontario to Chicago O'Hare Intl Airport takes 4h 35m
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
Skokie
Hammond
Harvey
Naperville
Glenview
Great Lakes
Wheeling
Elmhurst
Harvard
Merrillville
Elk Grove Village
Oak Brook
Kenosha

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.

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