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Cheap flights from London, Ontario to Chicago from C$ 341

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 16/7. 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.
Air Canada Logo
5:10 a.m. - 9:00 a.m.
YXU
-
ORD
4h 50m
1 stop
Air Canada Logo
9:55 a.m. - 2:58 p.m.
ORD
-
YXU
4h 03m
1 stop
C$ 621Air Canada
Mon, 15 Jun - Wed, 17 Jun
Air Canada Logo
10:05 a.m. - 2:55 p.m.
YXU
-
ORD
5h 50m
1 stop
Air Canada Logo
9:50 a.m. - 2:52 p.m.
ORD
-
YXU
4h 02m
1 stop
C$ 649Air Canada
Fri, 3 Jul - Sun, 5 Jul
Air Canada Logo
3:30 p.m. - 7:52 p.m.
YXU
-
ORD
5h 22m
1 stop
Air Canada Logo
2:15 p.m. - 8:32 p.m.
ORD
-
YXU
5h 17m
1 stop
C$ 650Air Canada
Wed, 8 Jul - Thu, 9 Jul
Air Canada Logo
10:05 a.m. - 2:55 p.m.
YXU
-
ORD
5h 50m
1 stop
Air Canada Logo
9:50 a.m. - 2:52 p.m.
ORD
-
YXU
4h 02m
1 stop
C$ 678Air Canada
Mon, 29 Jun - Mon, 6 Jul
Air Canada Logo
3:30 p.m. - 7:52 p.m.
YXU
-
ORD
5h 22m
1 stop
Air Canada Logo
9:50 a.m. - 2:52 p.m.
ORD
-
YXU
4h 02m
1 stop
C$ 734Air Canada
Mon, 6 Jul - Tue, 7 Jul
Air Canada Logo
3:25 p.m. - 7:35 p.m.
YXU
-
ORD
5h 10m
1 stop
Air Canada Logo
9:50 a.m. - 3:06 p.m.
ORD
-
YXU
4h 16m
1 stop
C$ 806Air Canada
Sat, 31 Oct - Wed, 4 Nov
WestJet Logo
6:10 a.m. - 10:15 p.m.
YXU
-
MDW
17h 05m
2 stops
WestJet Logo
1:49 p.m. - 1:50 p.m.
MDW
-
YXU
23h 01m
2 stops
C$ 1,627WestJet
Wed, 8 Jul - Thu, 9 Jul
Multiple Airlines Logo
6:10 a.m. - 9:40 a.m.
YXU
-
MDW
28h 30m
3 stops
Multiple Airlines Logo
10:25 a.m. - 5:20 a.m.
MDW
-
YXU
17h 55m
3 stops
C$ 1,653Multiple Airlines
Mon, 29 Jun - Mon, 6 Jul
WestJet Logo
5:55 p.m. - 3:40 p.m.
YXU
-
MDW
22h 45m
2 stops
WestJet Logo
9:17 a.m. - 5:20 a.m.
MDW
-
YXU
19h 03m
2 stops
C$ 1,754WestJet
Mon, 29 Jun - Mon, 6 Jul
WestJet Logo
6:10 a.m. - 6:18 p.m.
YXU
-
MDW
13h 08m
2 stops
WestJet Logo
12:41 p.m. - 5:20 a.m.
MDW
-
YXU
15h 39m
2 stops
C$ 1,761WestJet
Mon, 6 Jul - Tue, 7 Jul

Air Canada flights from London, Ontario to Chicago

Our best Air Canada deals on London, Ontario to Chicago flight tickets
Air Canada
15 Jun
YXU5:10 a.m.London
4h 50m
1 stop
ORD9:00 a.m.Chicago O'Hare Intl
17 Jun
ORD9:55 a.m.Chicago O'Hare Intl
4h 03m
1 stop
YXU2:58 p.m.London
C$ 621
Air Canada
3 Jul
YXU10:05 a.m.London
5h 50m
1 stop
ORD2:55 p.m.Chicago O'Hare Intl
5 Jul
ORD9:50 a.m.Chicago O'Hare Intl
4h 02m
1 stop
YXU2:52 p.m.London
C$ 649
Air Canada
8 Jul
YXU3:30 p.m.London
5h 22m
1 stop
ORD7:52 p.m.Chicago O'Hare Intl
9 Jul
ORD2:15 p.m.Chicago O'Hare Intl
5h 17m
1 stop
YXU8:32 p.m.London
C$ 650

United Airlines flights from London, Ontario to Chicago

Our best United Airlines deals on London, Ontario to Chicago flight tickets
United Airlines
29 Jun
YXU5:10 a.m.London
5h 35m
1 stop
ORD9:45 a.m.Chicago O'Hare Intl
6 Jul
ORD3:45 p.m.Chicago O'Hare Intl
3h 47m
1 stop
YXU8:32 p.m.London
C$ 826
United Airlines
15 Jun
YXU3:30 p.m.London
8h 56m
2 stops
ORD11:26 p.m.Chicago O'Hare Intl
17 Jun
ORD9:55 a.m.Chicago O'Hare Intl
4h 03m
1 stop
YXU2:58 p.m.London
C$ 835
United Airlines
27 Jul
YXU10:05 a.m.London
5h 50m
1 stop
ORD2:55 p.m.Chicago O'Hare Intl
30 Jul
ORD6:30 a.m.Chicago O'Hare Intl
13h 02m
2 stops
YXU8:32 p.m.London
C$ 901

momondo Fare Finder

 
Customize your flight search to find flights from London, Ontario to Chicago 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 4 June 2026.
Use the filters below to find and compare flights from London, Ontario to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Mon 15/6

5:10 a.m.-9:00 a.m.

1 stop4h 50m

Chicago O'Hare Intl

Wed 17/6

9:55 a.m.-2:58 p.m.

1 stop4h 03m

C$ 621

LondonChicago

YXU - ORD

YXUORD

London

Fri 3/7

10:05 a.m.-2:55 p.m.

1 stop5h 50m

Chicago O'Hare Intl

Sun 5/7

9:50 a.m.-2:52 p.m.

1 stop4h 02m

C$ 649

LondonChicago

YXU - ORD

YXUORD

London

Wed 8/7

3:30 p.m.-7:52 p.m.

1 stop5h 22m

Chicago O'Hare Intl

Thu 9/7

2:15 p.m.-8:32 p.m.

1 stop5h 17m

C$ 650

LondonChicago

YXU - ORD

YXUORD

London

Mon 29/6

10:05 a.m.-2:55 p.m.

1 stop5h 50m

Chicago O'Hare Intl

Mon 6/7

9:50 a.m.-2:52 p.m.

1 stop4h 02m

C$ 678

LondonChicago

YXU - ORD

YXUORD

London

Mon 6/7

3:30 p.m.-7:52 p.m.

1 stop5h 22m

Chicago O'Hare Intl

Tue 7/7

9:50 a.m.-2:52 p.m.

1 stop4h 02m

C$ 734

LondonChicago

YXU - ORD

YXUORD

London

Sat 31/10

3:25 p.m.-7:35 p.m.

1 stop5h 10m

Chicago O'Hare Intl

Wed 4/11

9:50 a.m.-3:06 p.m.

1 stop4h 16m

C$ 806

LondonChicago

YXU - MDW

YXUMDW

London

Wed 8/7

6:10 a.m.-10:15 p.m.

2 stops17h 05m

Chicago Midway

Thu 9/7

1:49 p.m.-1:50 p.m.

2 stops23h 01m

C$ 1,627

LondonChicago

YXU - MDW

YXUMDW

London

Mon 29/6

6:10 a.m.-9:40 a.m.

3 stops28h 30m

Chicago Midway

Mon 6/7

10:25 a.m.-5:20 a.m.

3 stops17h 55m

C$ 1,653

LondonChicago

YXU - MDW

YXUMDW

London

Mon 29/6

5:55 p.m.-3:40 p.m.

2 stops22h 45m

Chicago Midway

Mon 6/7

9:17 a.m.-5:20 a.m.

2 stops19h 03m

C$ 1,754

LondonChicago

YXU - MDW

YXUMDW

London

Mon 6/7

6:10 a.m.-6:18 p.m.

2 stops13h 08m

Chicago Midway

Tue 7/7

12:41 p.m.-5:20 a.m.

2 stops15h 39m

C$ 1,761

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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

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 day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as C$ 618. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around C$ 1,082. These prices are subject to change though, so be sure to set up a Price Alert for flights to Chicago.

What is the cheapest time of day to depart on your flight to Chicago?

In the morning is the cheapest time of day to fly from London, Ontario to Chicago when you can find flight prices for as low as C$ 706. Flying to Chicago in the morning is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Chicago, so prices are often more expensive at around C$ 1,102 per ticket.

When to book flights from London, Ontario to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from London, Ontario to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London, Ontario to Chicago (YXU to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to Chicago

Fastest flight time

4h 11m

Direct flights

None
The fastest flight from London, Ontario to Chicago takes 4h 11m
There are no direct flights from London, Ontario to Chicago. There are no popular flight routes from London, Ontario to Chicago.
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Frequently asked questions about flying from London, Ontario to Chicago

  • How far is London to Chicago by plane?

    The straight-line distance from London to Chicago is 538.5 km. Flights usually cover this in 4h 11m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London Airport to Chicago?

    Prices for flights from London Airport to Chicago are updated daily.

  • How old do you have to be to fly from London Airport to Chicago?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The required travel and health documents for your Chicago 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. 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
Merrillville
Hammond
Munster

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Chicago for 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?

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 trip

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 25.6 km from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport