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$ 388 Cheap Flights from London, Ontario to Illinois in 2026

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

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

YXU

ORD

5h 18m

1 stop

2:15 p.m. - 9:40 p.m.

ORD

YXU

6h 25m

1 stop

C$ 699Air Canada

Wed, 21 Oct - Sat, 24 Oct

5:40 a.m. - 9:00 a.m.

YXU

ORD

4h 20m

1 stop

11:05 a.m. - 9:40 p.m.

ORD

YXU

9h 35m

2 stops

C$ 704Air Canada

Wed, 21 Oct - Sat, 24 Oct

5:40 a.m. - 2:52 p.m.

YXU

ORD

10h 12m

2 stops

11:05 a.m. - 9:40 p.m.

ORD

YXU

9h 35m

2 stops

C$ 708Air Canada

Wed, 21 Oct - Sat, 24 Oct

10:05 a.m. - 1:25 p.m.

YXU

ORD

4h 20m

1 stop

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

ORD

YXU

4h 03m

1 stop

C$ 726Air Canada

Sun, 7 Jun - Sun, 14 Jun

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

YXU

ORD

5h 39m

1 stop

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

ORD

YXU

4h 48m

1 stop

C$ 729Air Canada

Sat, 23 May - Wed, 27 May

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

YXU

ORD

4h 50m

1 stop

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

ORD

YXU

6h 23m

1 stop

C$ 730Air Canada

Sat, 23 May - Wed, 27 May

2:40 p.m. - 9:14 a.m.

YXU

MDW

19h 34m

3 stops

9:17 a.m. - 5:20 a.m.

MDW

YXU

19h 03m

3 stops

C$ 1,270WestJet

Sun, 7 Jun - Tue, 9 Jun

2:40 p.m. - 9:35 a.m.

YXU

MDW

19h 55m

3 stops

7:16 p.m. - 5:20 a.m.

MDW

YXU

33h 04m

3 stops

C$ 1,448Multiple Airlines

Fri, 5 Jun - Fri, 12 Jun

2:40 p.m. - 12:46 p.m.

YXU

MDW

23h 06m

3 stops

9:17 a.m. - 5:20 a.m.

MDW

YXU

19h 03m

2 stops

C$ 1,541WestJet

Sun, 7 Jun - Tue, 9 Jun

6:10 a.m. - 6:31 p.m.

YXU

MDW

13h 21m

2 stops

1:26 p.m. - 5:20 a.m.

MDW

YXU

14h 54m

2 stops

C$ 1,882WestJet

Sun, 7 Jun - Tue, 9 Jun

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

6h 25m

1 stop

YXU9:40 p.m.London

C$ 699

Air Canada

21 Oct

YXU5:40 a.m.London

4h 20m

1 stop

ORD9:00 a.m.Chicago O'Hare Intl

24 Oct

ORD11:05 a.m.Chicago O'Hare Intl

9h 35m

2 stops

YXU9:40 p.m.London

C$ 704

Air Canada

21 Oct

YXU5:40 a.m.London

10h 12m

2 stops

ORD2:52 p.m.Chicago O'Hare Intl

24 Oct

ORD11:05 a.m.Chicago O'Hare Intl

9h 35m

2 stops

YXU9:40 p.m.London

C$ 708

United Airlines flights from London, Ontario to Illinois

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

United Airlines

7 Jun

YXU10:05 a.m.London

4h 20m

1 stop

ORD1:25 p.m.Chicago O'Hare Intl

14 Jun

ORD6:30 a.m.Chicago O'Hare Intl

10h 03m

2 stops

YXU5:33 p.m.London

C$ 878

United Airlines

20 Jun

YXU10:05 a.m.London

5h 50m

1 stop

ORD2:55 p.m.Chicago O'Hare Intl

27 Jun

ORD10:43 a.m.Chicago O'Hare Intl

5h 49m

1 stop

YXU5:32 p.m.London

C$ 881

United Airlines

21 Jun

YXU10:05 a.m.London

4h 17m

1 stop

ORD1:22 p.m.Chicago O'Hare Intl

28 Jun

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

6h 22m

1 stop

YXU9:37 p.m.London

C$ 882

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonChicago

YXU - ORD

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.-9:40 p.m.

1 stop6h 25m

C$ 699

LondonChicago

YXU - ORD

YXUORD

London

Wed 21/10

5:40 a.m.-9:00 a.m.

1 stop4h 20m

Chicago O'Hare Intl

Sat 24/10

11:05 a.m.-9:40 p.m.

2 stops9h 35m

C$ 704

LondonChicago

YXU - ORD

YXUORD

London

Wed 21/10

5:40 a.m.-2:52 p.m.

2 stops10h 12m

Chicago O'Hare Intl

Sat 24/10

11:05 a.m.-9:40 p.m.

2 stops9h 35m

C$ 708

Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Sun 7/6

10:05 a.m.-1:25 p.m.

1 stop4h 20m

Chicago O'Hare Intl

Sun 14/6

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

1 stop4h 03m

C$ 726

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$ 729

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$ 730

LondonChicago

YXU - MDW

YXUMDW

London

Sun 7/6

2:40 p.m.-9:14 a.m.

3 stops19h 34m

Chicago Midway

Tue 9/6

9:17 a.m.-5:20 a.m.

3 stops19h 03m

C$ 1,270

LondonChicago

YXU - MDW

YXUMDW

London

Fri 5/6

2:40 p.m.-9:35 a.m.

3 stops19h 55m

Chicago Midway

Fri 12/6

7:16 p.m.-5:20 a.m.

3 stops33h 04m

C$ 1,448

LondonChicago

YXU - MDW

YXUMDW

London

Sun 7/6

2:40 p.m.-12:46 p.m.

3 stops23h 06m

Chicago Midway

Tue 9/6

9:17 a.m.-5:20 a.m.

2 stops19h 03m

C$ 1,541

LondonChicago

YXU - MDW

YXUMDW

London

Sun 7/6

6:10 a.m.-6:31 p.m.

2 stops13h 21m

Chicago Midway

Tue 9/6

1:26 p.m.-5:20 a.m.

2 stops14h 54m

C$ 1,882

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, WestJet, and United Airlines are the most popular carriers 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 55% 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

Fastest flight time	4h 20m
Direct flights	None

The fastest flight from London, Ontario to Illinois takes 4h 20m

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.