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$ 501 Cheap Flights from London, Ontario to Illinois in 2026/27

Find the cheapest flights from London, Ontario to Illinois

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:30 p.m. - 7:48 p.m.YXU London-ORD Chicago O'Hare Intl

5h 18m1 stop Toronto Pearson Intl

2:15 p.m. - 7:40 p.m.ORD Chicago O'Hare Intl-YXU London

4h 25m1 stop Toronto Pearson Intl

C$ 901Air Canada

Wed, 21 Oct - Sat, 24 Oct

3:30 p.m. - 7:48 p.m.YXU London-ORD Chicago O'Hare Intl

5h 18m1 stop Toronto Pearson Intl

2:15 p.m. - 7:40 p.m.ORD Chicago O'Hare Intl-YXU London

4h 25m1 stop Toronto Pearson Intl

C$ 904Air Canada

Wed, 21 Oct - Sat, 24 Oct

9:05 a.m. - 1:23 p.m.YXU London-ORD Chicago O'Hare Intl

5h 18m1 stop Toronto Pearson Intl

8:45 a.m. - 7:40 p.m.ORD Chicago O'Hare Intl-YXU London

9h 55m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

C$ 905Air Canada

Wed, 21 Oct - Sat, 24 Oct

9:05 a.m. - 1:23 p.m.YXU London-ORD Chicago O'Hare Intl

5h 18m1 stop Toronto Pearson Intl

8:45 a.m. - 7:40 p.m.ORD Chicago O'Hare Intl-YXU London

9h 55m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

C$ 908Air Canada

Wed, 21 Oct - Sat, 24 Oct

3:25 p.m. - 7:58 p.m.YXU London-ORD Chicago O'Hare Intl

5h 33m1 stop Toronto Pearson Intl

4:30 p.m. - 9:57 p.m.ORD Chicago O'Hare Intl-YXU London

4h 27m1 stop Toronto Pearson Intl

C$ 922Air Canada

Fri, 6 Nov - Sun, 8 Nov

6:10 a.m. - 6:34 a.m.YXU London-ORD Chicago O'Hare Intl

25h 24m2 stops Calgary Los Angeles

5:30 p.m. - 5:20 a.m.ORD Chicago O'Hare Intl-YXU London

10h 50m1 stop Calgary

C$ 924Multiple Airlines

Wed, 14 Oct - Thu, 15 Oct

6:10 a.m. - 6:34 a.m.YXU London-ORD Chicago O'Hare Intl

25h 24m3 stops Calgary San Francisco Los Angeles

6:30 a.m. - 6:35 a.m.ORD Chicago O'Hare Intl-YXU London

23h 05m3 stops Denver Intl San Francisco Calgary

C$ 942Multiple Airlines

Fri, 23 Oct - Fri, 30 Oct

5:30 a.m. - 9:08 a.m.YXU London-ORD Chicago O'Hare Intl

4h 38m1 stop Toronto Pearson Intl

4:30 p.m. - 9:52 p.m.ORD Chicago O'Hare Intl-YXU London

4h 22m1 stop Toronto Pearson Intl

C$ 982Air Canada

Sat, 12 Dec - Mon, 14 Dec

6:10 a.m. - 4:40 p.m.YXU London-ORD Chicago O'Hare Intl

11h 30m1 stop Calgary

6:30 a.m. - 6:35 a.m.ORD Chicago O'Hare Intl-YXU London

23h 05m3 stops Denver Intl San Francisco Calgary

C$ 1,011Multiple Airlines

Fri, 23 Oct - Fri, 30 Oct

3:25 p.m. - 7:05 p.m.YXU London-ORD Chicago O'Hare Intl

4h 40m1 stop Toronto Pearson Intl

5:55 a.m. - 9:57 p.m.ORD Chicago O'Hare Intl-YXU London

15h 02m2 stops Newark Toronto Pearson Intl

C$ 1,020United Airlines

Fri, 6 Nov - Sun, 8 Nov

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Air Canada flights from London, Ontario to Illinois

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

Air Canada

21 Oct

YXU3:30 p.m.London

5h 18m

1 stop

ORD7:48 p.m.Chicago O'Hare Intl

24 Oct

ORD2:15 p.m.Chicago O'Hare Intl

4h 25m

1 stop

YXU7:40 p.m.London

C$ 901

Air Canada

21 Oct

YXU3:30 p.m.London

5h 18m

1 stop

ORD7:48 p.m.Chicago O'Hare Intl

24 Oct

ORD2:15 p.m.Chicago O'Hare Intl

4h 25m

1 stop

YXU7:40 p.m.London

C$ 904

Air Canada

21 Oct

YXU9:05 a.m.London

5h 18m

1 stop

ORD1:23 p.m.Chicago O'Hare Intl

24 Oct

ORD8:45 a.m.Chicago O'Hare Intl

9h 55m

2 stops

YXU7:40 p.m.London

C$ 905

United Airlines flights from London, Ontario to Illinois

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

United Airlines

6 Nov

YXU9:15 a.m.London

4h 58m

1 stop

ORD1:13 p.m.Chicago O'Hare Intl

13 Nov

ORD5:00 a.m.Chicago O'Hare Intl

8h 47m

2 stops

YXU2:47 p.m.London

C$ 1,020

United Airlines

21 Oct

YXU3:30 p.m.London

7h 58m

2 stops

ORD10:28 p.m.Chicago O'Hare Intl

24 Oct

ORD8:50 a.m.Chicago O'Hare Intl

7h 53m

2 stops

YXU5:43 p.m.London

C$ 1,025

United Airlines

6 Nov

YXU3:25 p.m.London

9h 36m

2 stops

ORD12:01 a.m.Chicago O'Hare Intl

13 Nov

ORD5:59 a.m.Chicago O'Hare Intl

7h 48m

2 stops

YXU2:47 p.m.London

C$ 1,028

momondo Fare Finder

Use the filters below to find and compare flights from London, Ontario to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Wed 21/10

3:30 p.m.-7:48 p.m.

1 stop5h 18m

Chicago O'Hare Intl

Sat 24/10

2:15 p.m.-7:40 p.m.

1 stop4h 25m

C$ 901

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Wed 21/10

3:30 p.m.-7:48 p.m.

1 stop5h 18m

Chicago O'Hare Intl

Sat 24/10

2:15 p.m.-7:40 p.m.

1 stop4h 25m

C$ 904

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Wed 21/10

9:05 a.m.-1:23 p.m.

1 stop5h 18m

Chicago O'Hare Intl

Sat 24/10

8:45 a.m.-7:40 p.m.

2 stops9h 55m

C$ 905

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Wed 21/10

9:05 a.m.-1:23 p.m.

1 stop5h 18m

Chicago O'Hare Intl

Sat 24/10

8:45 a.m.-7:40 p.m.

2 stops9h 55m

C$ 908

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Fri 6/11

3:25 p.m.-7:58 p.m.

1 stop5h 33m

Chicago O'Hare Intl

Sun 8/11

4:30 p.m.-9:57 p.m.

1 stop4h 27m

C$ 922

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Wed 14/10

6:10 a.m.-6:34 a.m.

2 stops25h 24m

Chicago O'Hare Intl

Thu 15/10

5:30 p.m.-5:20 a.m.

1 stop10h 50m

C$ 924

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Fri 23/10

6:10 a.m.-6:34 a.m.

3 stops25h 24m

Chicago O'Hare Intl

Fri 30/10

6:30 a.m.-6:35 a.m.

3 stops23h 05m

C$ 942

Quickest round-trip

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Sat 12/12

5:30 a.m.-9:08 a.m.

1 stop4h 38m

Chicago O'Hare Intl

Mon 14/12

4:30 p.m.-9:52 p.m.

1 stop4h 22m

C$ 982

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Fri 23/10

6:10 a.m.-4:40 p.m.

1 stop11h 30m

Chicago O'Hare Intl

Fri 30/10

6:30 a.m.-6:35 a.m.

3 stops23h 05m

C$ 1,011

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Fri 6/11

3:25 p.m.-7:05 p.m.

1 stop4h 40m

Chicago O'Hare Intl

Sun 8/11

5:55 a.m.-9:57 p.m.

2 stops15h 02m

C$ 1,020

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

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

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

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 63% 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.

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

Best price found	C$ 501
Fastest flight time	4h 58m
Direct flights	None

The best one-way flight to Illinois from London, Ontario in the past 72 hours is C$ 501. The best round-trip flight deal from London, Ontario to Illinois found on momondo in the last 72 hours is C$ 901.

The fastest flight from London, Ontario to Illinois takes 4h 58m

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

Search flight deals

Frequently asked questions about flying from London, Ontario 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.

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.