Which airlines fly to Illinois?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Illinois from London, Ontario according to our data. Air Canada is the first choice among our users, with 65% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London to Illinois?

Air Canada is the most popular carrier operating from London to Illinois

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

Prices for flights from London Airport to Illinois are refreshed on a daily basis.

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

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 Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 317 Cheap Flights from London to Illinois in 2025/26

1 adult

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Find the cheapest flights from London, Ontario to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

YXU

ORD

5h 03m1 stop

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

ORD

YXU

6h 05m1 stop

C$ 690Air Canada

Fri, 30 Jan - Mon, 2 Feb

9:50 a.m. - 1:01 p.m.

YXU

ORD

4h 11m1 stop

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

ORD

YXU

6h 21m1 stop

C$ 693Air Canada

Tue, 3 Feb - Tue, 10 Feb

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

YXU

ORD

11h 20m2 stops

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

ORD

YXU

6h 05m1 stop

C$ 694Air Canada

Fri, 30 Jan - Mon, 2 Feb

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

YXU

ORD

6h 56m2 stops

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

ORD

YXU

8h 50m2 stops

C$ 699Air Canada

Fri, 30 Jan - Mon, 2 Feb

9:50 a.m. - 1:01 p.m.

YXU

ORD

4h 11m1 stop

3:55 p.m. - 9:20 p.m.

ORD

YXU

4h 25m1 stop

C$ 702Air Canada

Fri, 30 Jan - Mon, 2 Feb

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

YXU

ORD

6h 56m2 stops

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

ORD

YXU

4h 26m1 stop

C$ 704Air Canada

Tue, 3 Feb - Tue, 10 Feb

6:00 a.m. - 4:24 p.m.

YXU

MDW

35h 24m3 stops

9:40 a.m. - 5:12 a.m.

MDW

YXU

18h 32m3 stops

C$ 1,261Multiple Airlines

Wed, 3 Jun - Sun, 7 Jun

8:10 p.m. - 6:36 p.m.

YXU

MDW

23h 26m2 stops

9:53 a.m. - 6:35 a.m.

MDW

YXU

19h 42m2 stops

C$ 1,938WestJet

Tue, 3 Feb - Tue, 10 Feb

8:10 p.m. - 6:36 p.m.

YXU

MDW

23h 26m2 stops

9:50 a.m. - 6:35 a.m.

MDW

YXU

19h 45m2 stops

C$ 2,131WestJet

Thu, 5 Feb - Thu, 12 Feb

6:00 a.m. - 9:45 p.m.

YXU

MDW

16h 45m2 stops

1:00 p.m. - 5:12 a.m.

MDW

YXU

15h 12m2 stops

C$ 2,160WestJet

Wed, 3 Jun - Sun, 7 Jun

United Airlines flights from London, Ontario to Illinois

Our best United Airlines deals on London, Ontario to Illinois flight tickets

United Airlines

5 Feb

YXU9:25 a.m.London

4h 36m

1 stop

ORD1:01 p.m.Chicago O'Hare Intl

12 Feb

ORD10:55 a.m.Chicago O'Hare Intl

9h 26m

2 stops

YXU9:21 p.m.London

C$ 763

Find similar

United Airlines

22 Jan

YXU9:50 a.m.London

9h 47m

2 stops

ORD6:37 p.m.Chicago O'Hare Intl

23 Jan

ORD1:00 p.m.Chicago O'Hare Intl

7h 20m

2 stops

YXU9:20 p.m.London

C$ 771

Find similar

United Airlines

19 Jan

YXU9:50 a.m.London

4h 11m

1 stop

ORD1:01 p.m.Chicago O'Hare Intl

26 Jan

ORD6:05 a.m.Chicago O'Hare Intl

10h 00m

2 stops

YXU5:05 p.m.London

C$ 792

Find similar

Air Canada flights from London, Ontario to Illinois

Our best Air Canada deals on London, Ontario to Illinois flight tickets

Air Canada

30 Jan

YXU5:10 a.m.London

5h 03m

1 stop

ORD9:13 a.m.Chicago O'Hare Intl

2 Feb

ORD10:00 a.m.Chicago O'Hare Intl

6h 05m

1 stop

YXU5:05 p.m.London

C$ 690

Find similar

Air Canada

3 Feb

YXU9:50 a.m.London

4h 11m

1 stop

ORD1:01 p.m.Chicago O'Hare Intl

10 Feb

ORD2:00 p.m.Chicago O'Hare Intl

6h 21m

1 stop

YXU9:21 p.m.London

C$ 693

Find similar

Air Canada

30 Jan

YXU9:50 a.m.London

6h 20m

1 stop

ORD3:10 p.m.Chicago O'Hare Intl

2 Feb

ORD7:15 a.m.Chicago O'Hare Intl

8h 50m

2 stops

YXU5:05 p.m.London

C$ 694

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

YXU - ORD

YXUORD

London

Fri 30/1

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

1 stop5h 03m

Chicago O'Hare Intl

Mon 2/2

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

1 stop6h 05m

C$ 690

LondonChicago

YXU - ORD

YXUORD

London

Tue 3/2

9:50 a.m.-1:01 p.m.

1 stop4h 11m

Chicago O'Hare Intl

Tue 10/2

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

1 stop6h 21m

C$ 693

LondonChicago

YXU - ORD

YXUORD

London

Fri 30/1

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

2 stops11h 20m

Chicago O'Hare Intl

Mon 2/2

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

1 stop6h 05m

C$ 694

LondonChicago

YXU - ORD

YXUORD

London

Fri 30/1

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

2 stops6h 56m

Chicago O'Hare Intl

Mon 2/2

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

2 stops8h 50m

C$ 699

LondonChicago

YXU - ORD

YXUORD

London

Fri 30/1

9:50 a.m.-1:01 p.m.

1 stop4h 11m

Chicago O'Hare Intl

Mon 2/2

3:55 p.m.-9:20 p.m.

1 stop4h 25m

C$ 702

LondonChicago

YXU - ORD

YXUORD

London

Tue 3/2

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

2 stops6h 56m

Chicago O'Hare Intl

Tue 10/2

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

1 stop4h 26m

C$ 704

LondonChicago

YXU - MDW

YXUMDW

London

Wed 3/6

6:00 a.m.-4:24 p.m.

3 stops35h 24m

Chicago Midway

Sun 7/6

9:40 a.m.-5:12 a.m.

3 stops18h 32m

C$ 1,261

LondonChicago

YXU - MDW

YXUMDW

London

Tue 3/2

8:10 p.m.-6:36 p.m.

2 stops23h 26m

Chicago Midway

Tue 10/2

9:53 a.m.-6:35 a.m.

2 stops19h 42m

C$ 1,938

LondonChicago

YXU - MDW

YXUMDW

London

Thu 5/2

8:10 p.m.-6:36 p.m.

2 stops23h 26m

Chicago Midway

Thu 12/2

9:50 a.m.-6:35 a.m.

2 stops19h 45m

C$ 2,131

LondonChicago

YXU - MDW

YXUMDW

London

Wed 3/6

6:00 a.m.-9:45 p.m.

2 stops16h 45m

Chicago Midway

Sun 7/6

1:00 p.m.-5:12 a.m.

2 stops15h 12m

C$ 2,160

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from London, Ontario to Illinois

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

Prices

Airlines

What is the cheapest day to depart on your flight to Illinois?

According to our data, Thursday is the cheapest day to fly to Illinois from London, Ontario. The lowest ticket price found for a Thursday departure recently was C$ 769. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Illinois is Monday, with ticket prices averaging around C$ 865.

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from London, Ontario to Illinois during this time can be as low as C$ 845. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 877 on average. Flights to Illinois from London, Ontario in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Cheap London, Ontario to Illinois flight deals and tips

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

Fastest flight time	4h 00m
Direct flights	None

The fastest flight from London, Ontario to Illinois takes 4h 00m

There are no direct flights from London, Ontario to Illinois. There are no popular flight routes from London, Ontario to Illinois.

Search flight deals

When did momondo last update prices for flights from London Airport to Illinois?
Prices for flights from London Airport to Illinois are refreshed on a daily basis.
How old do you have to be to fly from London Airport to Illinois?
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 Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find London to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from London to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from London with this policy.

How can momondo help me find flights from London to Illinois?

Once all potential London to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.