Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London, Ontario to Chicago from C$ 356

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 31/10. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London, Ontario to Chicago

Cheap round-trip flights

WestJet Logo
8:00 p.m. - 4:43 p.m.YXU-ORD
21h 43m1 stop
WestJet Logo
5:30 p.m. - 7:12 p.m.ORD-YXU
24h 42m1 stop
C$ 512WestJet
Find Deal
Wed, 22 Oct - Sat, 25 Oct
Multiple Airlines Logo
6:00 a.m. - 11:59 p.m.YXU-ORD
18h 59m2 stops
Multiple Airlines Logo
5:30 p.m. - 7:12 p.m.ORD-YXU
24h 42m1 stop
C$ 597Multiple Airlines
Find Deal
Wed, 22 Oct - Sat, 25 Oct
Air Canada Logo
9:25 a.m. - 3:10 p.m.YXU-ORD
6h 45m1 stop
Air Canada Logo
2:00 p.m. - 9:21 p.m.ORD-YXU
6h 21m1 stop
C$ 644Air Canada
Find Deal
Sun, 2 Nov - Sun, 9 Nov
Air Canada Logo
9:25 a.m. - 1:01 p.m.YXU-ORD
4h 36m1 stop
Air Canada Logo
10:00 a.m. - 5:05 p.m.ORD-YXU
6h 05m1 stop
C$ 656Air Canada
Find Deal
Sat, 8 Nov - Mon, 10 Nov
Air Canada Logo
5:15 a.m. - 9:13 a.m.YXU-ORD
4h 58m1 stop
Air Canada Logo
2:00 p.m. - 9:21 p.m.ORD-YXU
6h 21m1 stop
C$ 658Air Canada
Find Deal
Wed, 3 Dec - Sat, 6 Dec
Air Canada Logo
5:15 a.m. - 2:55 p.m.YXU-ORD
10h 40m2 stops
Air Canada Logo
10:00 a.m. - 5:05 p.m.ORD-YXU
6h 05m1 stop
C$ 664Air Canada
Find Deal
Wed, 3 Dec - Sat, 6 Dec
Air Canada Logo
9:55 a.m. - 8:17 p.m.YXU-ORD
11h 22m2 stops
Air Canada Logo
10:40 a.m. - 9:27 p.m.ORD-YXU
9h 47m2 stops
C$ 671Air Canada
Find Deal
Wed, 22 Oct - Sat, 25 Oct
United Airlines Logo
5:40 p.m. - 7:41 a.m.YXU-ORD
15h 01m2 stops
United Airlines Logo
10:00 a.m. - 5:05 p.m.ORD-YXU
6h 05m1 stop
C$ 726United Airlines
Find Deal
Sun, 2 Nov - Sun, 9 Nov
Multiple Airlines Logo
6:00 a.m. - 12:31 p.m.YXU-ORD
31h 31m3 stops
Multiple Airlines Logo
4:45 p.m. - 7:12 p.m.ORD-YXU
25h 27m3 stops
C$ 733Multiple Airlines
Find Deal
Wed, 22 Oct - Sat, 25 Oct
United Airlines Logo
5:40 p.m. - 7:41 a.m.YXU-ORD
15h 01m2 stops
United Airlines Logo
8:50 a.m. - 5:05 p.m.ORD-YXU
7h 15m2 stops
C$ 754United Airlines
Find Deal
Sun, 2 Nov - Sun, 9 Nov

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
2 Nov
YXU9:25 a.m.London
6h 45m
1 stop
ORD3:10 p.m.Chicago O'Hare Intl
9 Nov
ORD2:00 p.m.Chicago O'Hare Intl
6h 21m
1 stop
YXU9:21 p.m.London
C$ 644
Find similar
Air Canada
8 Nov
YXU9:25 a.m.London
4h 36m
1 stop
ORD1:01 p.m.Chicago O'Hare Intl
10 Nov
ORD10:00 a.m.Chicago O'Hare Intl
6h 05m
1 stop
YXU5:05 p.m.London
C$ 656
Find similar
Air Canada
3 Dec
YXU5:15 a.m.London
4h 58m
1 stop
ORD9:13 a.m.Chicago O'Hare Intl
6 Dec
ORD2:00 p.m.Chicago O'Hare Intl
6h 21m
1 stop
YXU9:21 p.m.London
C$ 658
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
2 Nov
YXU5:40 p.m.London
15h 01m
2 stops
ORD7:41 a.m.Chicago O'Hare Intl
9 Nov
ORD10:00 a.m.Chicago O'Hare Intl
6h 05m
1 stop
YXU5:05 p.m.London
C$ 726
Find similar
United Airlines
2 Nov
YXU5:40 p.m.London
15h 01m
2 stops
ORD7:41 a.m.Chicago O'Hare Intl
9 Nov
ORD8:50 a.m.Chicago O'Hare Intl
7h 15m
2 stops
YXU5:05 p.m.London
C$ 754
Find similar
United Airlines
14 Oct
YXU9:55 a.m.London
14h 20m
2 stops
ORD11:15 p.m.Chicago O'Hare Intl
21 Oct
ORD7:10 a.m.Chicago O'Hare Intl
13h 17m
2 stops
YXU9:27 p.m.London
C$ 812
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 17 September 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

Wed 22/10

8:00 p.m.-4:43 p.m.

1 stop21h 43m

Chicago O'Hare Intl

Sat 25/10

5:30 p.m.-7:12 p.m.

1 stop24h 42m

C$ 512

LondonChicago

YXU - ORD

YXUORD

London

Wed 22/10

6:00 a.m.-11:59 p.m.

2 stops18h 59m

Chicago O'Hare Intl

Sat 25/10

5:30 p.m.-7:12 p.m.

1 stop24h 42m

C$ 597

LondonChicago

YXU - ORD

YXUORD

London

Sun 2/11

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

1 stop6h 45m

Chicago O'Hare Intl

Sun 9/11

2:00 p.m.-9:21 p.m.

1 stop6h 21m

C$ 644

LondonChicago

YXU - ORD

YXUORD

London

Sat 8/11

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

1 stop4h 36m

Chicago O'Hare Intl

Mon 10/11

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

1 stop6h 05m

C$ 656

LondonChicago

YXU - ORD

YXUORD

London

Wed 3/12

5:15 a.m.-9:13 a.m.

1 stop4h 58m

Chicago O'Hare Intl

Sat 6/12

2:00 p.m.-9:21 p.m.

1 stop6h 21m

C$ 658

LondonChicago

YXU - ORD

YXUORD

London

Wed 3/12

5:15 a.m.-2:55 p.m.

2 stops10h 40m

Chicago O'Hare Intl

Sat 6/12

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

1 stop6h 05m

C$ 664

LondonChicago

YXU - ORD

YXUORD

London

Wed 22/10

9:55 a.m.-8:17 p.m.

2 stops11h 22m

Chicago O'Hare Intl

Sat 25/10

10:40 a.m.-9:27 p.m.

2 stops9h 47m

C$ 671

LondonChicago

YXU - ORD

YXUORD

London

Sun 2/11

5:40 p.m.-7:41 a.m.

2 stops15h 01m

Chicago O'Hare Intl

Sun 9/11

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

1 stop6h 05m

C$ 726

LondonChicago

YXU - ORD

YXUORD

London

Wed 22/10

6:00 a.m.-12:31 p.m.

3 stops31h 31m

Chicago O'Hare Intl

Sat 25/10

4:45 p.m.-7:12 p.m.

3 stops25h 27m

C$ 733

LondonChicago

YXU - ORD

YXUORD

London

Sun 2/11

5:40 p.m.-7:41 a.m.

2 stops15h 01m

Chicago O'Hare Intl

Sun 9/11

8:50 a.m.-5:05 p.m.

2 stops7h 15m

C$ 754

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 is the most popular carrier 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 70% 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.
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 4h 19m, 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
Hoffman Estates
Tinley Park
Munster
Hammond
Naperville
Glenview
Great Lakes
Wheeling
Des Plaines
Harvard
Merrillville
Elk Grove Village
Oak Brook
Elmhurst
Kenosha
Skokie
Rosemont
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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 17/10
Fri 24/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago