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 70% 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$ 356 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

Cheap round-trip flights

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

21h 43m1 stop

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

24h 42m1 stop

C$ 512WestJet

Find Deal

Wed, 22 Oct - Sat, 25 Oct

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

18h 59m2 stops

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

24h 42m1 stop

C$ 597Multiple Airlines

Find Deal

Wed, 22 Oct - Sat, 25 Oct

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

6h 45m1 stop

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

6h 21m1 stop

C$ 644Air Canada

Find Deal

Sun, 2 Nov - Sun, 9 Nov

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

4h 36m1 stop

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

6h 05m1 stop

C$ 656Air Canada

Find Deal

Sat, 8 Nov - Mon, 10 Nov

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

4h 58m1 stop

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

6h 21m1 stop

C$ 658Air Canada

Find Deal

Wed, 3 Dec - Sat, 6 Dec

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

10h 40m2 stops

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

6h 05m1 stop

C$ 664Air Canada

Find Deal

Wed, 3 Dec - Sat, 6 Dec

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

11h 22m2 stops

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

9h 47m2 stops

C$ 671Air Canada

Find Deal

Wed, 22 Oct - Sat, 25 Oct

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

15h 01m2 stops

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

6h 05m1 stop

C$ 726United Airlines

Find Deal

Sun, 2 Nov - Sun, 9 Nov

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

31h 31m3 stops

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

25h 27m3 stops

C$ 733Multiple Airlines

Find Deal

Wed, 22 Oct - Sat, 25 Oct

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

15h 01m2 stops

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 Illinois

Our best Air Canada deals on London, Ontario to Illinois 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

WestJet flights from London, Ontario to Illinois

Our best WestJet deals on London, Ontario to Illinois flight tickets

WestJet

22 Oct

YXU8:00 p.m.London

21h 43m

1 stop

ORD4:43 p.m.Chicago O'Hare Intl

25 Oct

ORD5:30 p.m.Chicago O'Hare Intl

24h 42m

1 stop

YXU7:12 p.m.London

C$ 512

Find similar

WestJet

22 Oct

YXU6:00 a.m.London

32h 08m

3 stops

MDW1:08 p.m.Chicago Midway

25 Oct

MDW9:20 a.m.Chicago Midway

32h 52m

3 stops

YXU7:12 p.m.London

C$ 1,040

Find similar

WestJet

3 Dec

YXU8:10 p.m.London

17h 58m

2 stops

MDW1:08 p.m.Chicago Midway

6 Dec

MDW11:05 a.m.Chicago Midway

31h 07m

2 stops

YXU7:12 p.m.London

C$ 2,063

Find similar

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 14 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$ 768. 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$ 844. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 876 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

Direct flights	None

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.