Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London, Ontario to Chicago from C$ 376

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 12/6. 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

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
3:50 p.m. - 9:38 p.m.
ORD
-
YXU
4h 48m
1 stop
C$ 658Air Canada
Sun, 17 May - Tue, 26 May
Air Canada Logo
5:10 a.m. - 9:00 a.m.
YXU
-
ORD
4h 50m
1 stop
Air Canada Logo
2:15 p.m. - 9:38 p.m.
ORD
-
YXU
6h 23m
1 stop
C$ 691Air Canada
Sat, 23 May - Wed, 27 May
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$ 694Air Canada
Sat, 23 May - Wed, 27 May
Air Canada Logo
5:10 a.m. - 2:53 p.m.
YXU
-
ORD
10h 43m
2 stops
Air Canada Logo
2:15 p.m. - 9:38 p.m.
ORD
-
YXU
6h 23m
1 stop
C$ 695Air Canada
Sat, 23 May - Wed, 27 May
Air Canada Logo
5:10 a.m. - 2:53 p.m.
YXU
-
ORD
10h 43m
2 stops
Air Canada Logo
2:15 p.m. - 9:38 p.m.
ORD
-
YXU
6h 23m
1 stop
C$ 698Air Canada
Sat, 23 May - Wed, 27 May
Air Canada Logo
5:10 a.m. - 9:00 a.m.
YXU
-
ORD
4h 50m
1 stop
Air Canada Logo
8:45 a.m. - 9:38 p.m.
ORD
-
YXU
11h 53m
2 stops
C$ 699Air Canada
Sun, 17 May - Tue, 26 May
Air Canada Logo
12:20 p.m. - 4:59 p.m.
YXU
-
ORD
5h 39m
1 stop
Air Canada Logo
3:50 p.m. - 9:38 p.m.
ORD
-
YXU
4h 48m
1 stop
C$ 728Air Canada
Sat, 23 May - Wed, 27 May
Air Canada Logo
9:30 a.m. - 2:55 p.m.
YXU
-
ORD
6h 25m
1 stop
Air Canada Logo
9:55 a.m. - 2:58 p.m.
ORD
-
YXU
4h 03m
1 stop
C$ 729Air Canada
Mon, 1 Jun - Sun, 7 Jun
Air Canada Logo
12:20 p.m. - 8:08 p.m.
YXU
-
ORD
8h 48m
2 stops
Air Canada Logo
2:15 p.m. - 9:38 p.m.
ORD
-
YXU
6h 23m
1 stop
C$ 732Air Canada
Sat, 23 May - Wed, 27 May
Air Canada Logo
12:20 p.m. - 8:08 p.m.
YXU
-
ORD
8h 48m
2 stops
Air Canada Logo
2:15 p.m. - 9:38 p.m.
ORD
-
YXU
6h 23m
1 stop
C$ 733Air Canada
Sat, 23 May - Wed, 27 May

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
17 May
YXU5:10 a.m.London
4h 50m
1 stop
ORD9:00 a.m.Chicago O'Hare Intl
26 May
ORD3:50 p.m.Chicago O'Hare Intl
4h 48m
1 stop
YXU9:38 p.m.London
C$ 658
Air Canada
23 May
YXU5:10 a.m.London
4h 50m
1 stop
ORD9:00 a.m.Chicago O'Hare Intl
27 May
ORD2:15 p.m.Chicago O'Hare Intl
6h 23m
1 stop
YXU9:38 p.m.London
C$ 691
Air Canada
23 May
YXU12:20 p.m.London
5h 39m
1 stop
ORD4:59 p.m.Chicago O'Hare Intl
27 May
ORD2:15 p.m.Chicago O'Hare Intl
6h 23m
1 stop
YXU9:38 p.m.London
C$ 694

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
13 Jun
YXU5:10 a.m.London
4h 50m
1 stop
ORD9:00 a.m.Chicago O'Hare Intl
20 Jun
ORD9:19 p.m.Chicago O'Hare Intl
16h 38m
2 stops
YXU2:57 p.m.London
C$ 786
United Airlines
13 Jun
YXU3:30 p.m.London
8h 56m
2 stops
ORD11:26 p.m.Chicago O'Hare Intl
20 Jun
ORD9:19 p.m.Chicago O'Hare Intl
16h 38m
2 stops
YXU2:57 p.m.London
C$ 795
United Airlines
17 Jun
YXU10:05 a.m.London
6h 45m
1 stop
ORD3:50 p.m.Chicago O'Hare Intl
24 Jun
ORD5:00 a.m.Chicago O'Hare Intl
8h 57m
2 stops
YXU2:57 p.m.London
C$ 822

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 4 May 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
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Sun 17/5

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

1 stop4h 50m

Chicago O'Hare Intl

Tue 26/5

3:50 p.m.-9:38 p.m.

1 stop4h 48m

C$ 658

LondonChicago

YXU - ORD

YXUORD

London

Sat 23/5

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

1 stop4h 50m

Chicago O'Hare Intl

Wed 27/5

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

1 stop6h 23m

C$ 691

LondonChicago

YXU - ORD

YXUORD

London

Sat 23/5

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

1 stop5h 39m

Chicago O'Hare Intl

Wed 27/5

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

1 stop6h 23m

C$ 694

LondonChicago

YXU - ORD

YXUORD

London

Sat 23/5

5:10 a.m.-2:53 p.m.

2 stops10h 43m

Chicago O'Hare Intl

Wed 27/5

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

1 stop6h 23m

C$ 695

LondonChicago

YXU - ORD

YXUORD

London

Sat 23/5

5:10 a.m.-2:53 p.m.

2 stops10h 43m

Chicago O'Hare Intl

Wed 27/5

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

1 stop6h 23m

C$ 698

LondonChicago

YXU - ORD

YXUORD

London

Sun 17/5

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

1 stop4h 50m

Chicago O'Hare Intl

Tue 26/5

8:45 a.m.-9:38 p.m.

2 stops11h 53m

C$ 699

LondonChicago

YXU - ORD

YXUORD

London

Sat 23/5

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

1 stop5h 39m

Chicago O'Hare Intl

Wed 27/5

3:50 p.m.-9:38 p.m.

1 stop4h 48m

C$ 728

LondonChicago

YXU - ORD

YXUORD

London

Mon 1/6

9:30 a.m.-2:55 p.m.

1 stop6h 25m

Chicago O'Hare Intl

Sun 7/6

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

1 stop4h 03m

C$ 729

LondonChicago

YXU - ORD

YXUORD

London

Sat 23/5

12:20 p.m.-8:08 p.m.

2 stops8h 48m

Chicago O'Hare Intl

Wed 27/5

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

1 stop6h 23m

C$ 732

LondonChicago

YXU - ORD

YXUORD

London

Sat 23/5

12:20 p.m.-8:08 p.m.

2 stops8h 48m

Chicago O'Hare Intl

Wed 27/5

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

1 stop6h 23m

C$ 733

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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 57% 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 39m

Direct flights

None
The fastest flight from London, Ontario to Chicago O'Hare Intl Airport takes 5h 39m
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

Frequently asked questions about flying from London, Ontario to Chicago O'Hare Intl Airport

  • 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 39m, 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
Des Plaines
Merrillville
Rosemont
Northbrook
Tinley Park
Downers Grove
Skokie
Great Lakes
Wheeling
Hammond
Glenview
Harvey
Naperville
Munster
Hoffman Estates
Elmhurst
Harvard
DeKalb
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.

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
Wed 3/6
Wed 10/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Chicago