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Cheap flights from London, Ontario to Chicago from C$ 304

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 30/4. 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 p.m. - 4:40 p.m.
YXU
-
ORD
23h 45m
1 stop
WestJet Logo
5:30 p.m. - 5:20 a.m.
ORD
-
YXU
10h 50m
1 stop
C$ 680WestJet
Thu, 21 May - Thu, 28 May
United Airlines Logo
5:40 p.m. - 7:46 a.m.
YXU
-
ORD
15h 06m
2 stops
United Airlines Logo
9:50 a.m. - 5:04 p.m.
ORD
-
YXU
6h 14m
1 stop
C$ 693United Airlines
Sun, 19 Apr - Thu, 23 Apr
Air Canada Logo
12:20 p.m. - 4:59 p.m.
YXU
-
ORD
5h 39m
1 stop
Air Canada Logo
2:15 p.m. - 9:38 p.m.
ORD
-
YXU
6h 23m
1 stop
C$ 707Air Canada
Fri, 1 May - Sun, 3 May
Air Canada Logo
5:40 a.m. - 9:05 a.m.
YXU
-
ORD
4h 25m
1 stop
Air Canada Logo
8:45 a.m. - 5:33 p.m.
ORD
-
YXU
7h 48m
2 stops
C$ 735Air Canada
Thu, 21 May - Thu, 28 May
United Airlines Logo
5:10 a.m. - 9:50 a.m.
YXU
-
ORD
5h 40m
1 stop
United Airlines Logo
4:15 p.m. - 9:19 p.m.
ORD
-
YXU
4h 04m
1 stop
C$ 783United Airlines
Sun, 19 Apr - Thu, 23 Apr
United Airlines Logo
5:40 p.m. - 10:03 p.m.
YXU
-
ORD
5h 23m
1 stop
United Airlines Logo
9:50 a.m. - 5:04 p.m.
ORD
-
YXU
6h 14m
1 stop
C$ 784United Airlines
Sun, 19 Apr - Thu, 23 Apr
United Airlines Logo
6:10 p.m. - 7:46 a.m.
YXU
-
ORD
14h 36m
2 stops
United Airlines Logo
6:00 a.m. - 5:33 p.m.
ORD
-
YXU
10h 33m
2 stops
C$ 789United Airlines
Fri, 1 May - Sun, 3 May
United Airlines Logo
9:30 a.m. - 5:02 p.m.
YXU
-
ORD
8h 32m
2 stops
United Airlines Logo
8:40 a.m. - 5:33 p.m.
ORD
-
YXU
7h 53m
2 stops
C$ 791United Airlines
Thu, 21 May - Thu, 28 May
United Airlines Logo
5:40 p.m. - 7:26 a.m.
YXU
-
ORD
14h 46m
2 stops
United Airlines Logo
9:00 a.m. - 9:19 p.m.
ORD
-
YXU
11h 19m
2 stops
C$ 848United Airlines
Sun, 19 Apr - Thu, 23 Apr
Air Canada Logo
5:10 a.m. - 12:17 p.m.
YXU
-
ORD
8h 07m
2 stops
Air Canada Logo
9:35 p.m. - 5:04 p.m.
ORD
-
YXU
18h 29m
2 stops
C$ 858Air Canada
Sun, 19 Apr - Thu, 23 Apr

WestJet flights from London, Ontario to Chicago O'Hare Intl Airport

Our best WestJet deals on London, Ontario to Chicago O'Hare Intl Airport flight tickets
WestJet
21 May
YXU5:55 p.m.London
23h 45m
1 stop
ORD4:40 p.m.Chicago O'Hare Intl
28 May
ORD5:30 p.m.Chicago O'Hare Intl
10h 50m
1 stop
YXU5:20 a.m.London
C$ 680
WestJet
13 Apr
YXU8:10 p.m.London
22h 54m
2 stops
ORD6:04 p.m.Chicago O'Hare Intl
20 Apr
ORD2:20 p.m.Chicago O'Hare Intl
15h 15m
1 stop
YXU6:35 a.m.London
C$ 1,672
WestJet
13 Apr
YXU8:10 p.m.London
23h 25m
2 stops
ORD6:35 p.m.Chicago O'Hare Intl
20 Apr
ORD7:35 a.m.Chicago O'Hare Intl
22h 00m
2 stops
YXU6:35 a.m.London
C$ 2,168

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
19 Apr
YXU5:40 p.m.London
15h 06m
2 stops
ORD7:46 a.m.Chicago O'Hare Intl
23 Apr
ORD9:50 a.m.Chicago O'Hare Intl
6h 14m
1 stop
YXU5:04 p.m.London
C$ 693
United Airlines
19 Apr
YXU5:10 a.m.London
5h 40m
1 stop
ORD9:50 a.m.Chicago O'Hare Intl
23 Apr
ORD4:15 p.m.Chicago O'Hare Intl
4h 04m
1 stop
YXU9:19 p.m.London
C$ 783
United Airlines
19 Apr
YXU5:40 p.m.London
5h 23m
1 stop
ORD10:03 p.m.Chicago O'Hare Intl
23 Apr
ORD9:50 a.m.Chicago O'Hare Intl
6h 14m
1 stop
YXU5:04 p.m.London
C$ 784

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 19 March 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 21/5

5:55 p.m.-4:40 p.m.

1 stop23h 45m

Chicago O'Hare Intl

Thu 28/5

5:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 680

LondonChicago

YXU - ORD

YXUORD

London

Sun 19/4

5:40 p.m.-7:46 a.m.

2 stops15h 06m

Chicago O'Hare Intl

Thu 23/4

9:50 a.m.-5:04 p.m.

1 stop6h 14m

C$ 693

LondonChicago

YXU - ORD

YXUORD

London

Fri 1/5

12:20 p.m.-4:59 p.m.

1 stop5h 39m

Chicago O'Hare Intl

Sun 3/5

2:15 p.m.-9:38 p.m.

1 stop6h 23m

C$ 707

LondonChicago

YXU - ORD

YXUORD

London

Thu 21/5

5:40 a.m.-9:05 a.m.

1 stop4h 25m

Chicago O'Hare Intl

Thu 28/5

8:45 a.m.-5:33 p.m.

2 stops7h 48m

C$ 735
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Sun 19/4

5:10 a.m.-9:50 a.m.

1 stop5h 40m

Chicago O'Hare Intl

Thu 23/4

4:15 p.m.-9:19 p.m.

1 stop4h 04m

C$ 783

LondonChicago

YXU - ORD

YXUORD

London

Sun 19/4

5:40 p.m.-10:03 p.m.

1 stop5h 23m

Chicago O'Hare Intl

Thu 23/4

9:50 a.m.-5:04 p.m.

1 stop6h 14m

C$ 784

LondonChicago

YXU - ORD

YXUORD

London

Fri 1/5

6:10 p.m.-7:46 a.m.

2 stops14h 36m

Chicago O'Hare Intl

Sun 3/5

6:00 a.m.-5:33 p.m.

2 stops10h 33m

C$ 789

LondonChicago

YXU - ORD

YXUORD

London

Thu 21/5

9:30 a.m.-5:02 p.m.

2 stops8h 32m

Chicago O'Hare Intl

Thu 28/5

8:40 a.m.-5:33 p.m.

2 stops7h 53m

C$ 791

LondonChicago

YXU - ORD

YXUORD

London

Sun 19/4

5:40 p.m.-7:26 a.m.

2 stops14h 46m

Chicago O'Hare Intl

Thu 23/4

9:00 a.m.-9:19 p.m.

2 stops11h 19m

C$ 848

LondonChicago

YXU - ORD

YXUORD

London

Sun 19/4

5:10 a.m.-12:17 p.m.

2 stops8h 07m

Chicago O'Hare Intl

Thu 23/4

9:35 p.m.-5:04 p.m.

2 stops18h 29m

C$ 858

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, 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 63% 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

5h 10m

Direct flights

None
The fastest flight from London, Ontario to Chicago O'Hare Intl Airport takes 5h 10m
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?

    London and Chicago O'Hare Intl are 557.8 km apart from one another. Flights usually cover this in 5h 10m, 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
Merrillville
Northbrook
Tinley Park
Munster
Skokie
Great Lakes
Wheeling
Hammond
Harvey
Naperville
Glenview
Des Plaines
Elmhurst
DeKalb
Harvard
Oak Brook
Kankakee

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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