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

Prices for flights from London Airport to Illinois were last updated today.

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.

$276 Cheap Flights from London to Illinois in 2026

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? 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

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:30 am - 1:25 pm

YXU

ORD

4h 55m

1 stop

3:50 pm - 9:38 pm

ORD

YXU

4h 48m

1 stop

$506Air Canada

Sat, May 2 - Tue, May 5

5:10 am - 9:05 am

YXU

ORD

4h 55m

1 stop

2:15 pm - 9:38 pm

ORD

YXU

6h 23m

1 stop

$508Air Canada

Sat, May 2 - Tue, May 5

5:10 am - 9:05 am

YXU

ORD

4h 55m

1 stop

11:05 am - 9:38 pm

ORD

YXU

9h 33m

2 stops

$509Air Canada

Sat, May 2 - Tue, May 5

9:25 am - 1:05 pm

YXU

ORD

4h 40m

1 stop

3:50 pm - 9:38 pm

ORD

YXU

4h 48m

1 stop

$510Air Canada

Thu, Apr 30 - Mon, May 4

12:20 pm - 8:08 pm

YXU

ORD

8h 48m

2 stops

2:15 pm - 9:38 pm

ORD

YXU

6h 23m

1 stop

$511Air Canada

Sat, May 2 - Tue, May 5

12:20 pm - 8:08 pm

YXU

ORD

8h 48m

2 stops

3:50 pm - 9:38 pm

ORD

YXU

4h 48m

1 stop

$512Air Canada

Sat, May 2 - Tue, May 5

5:55 pm - 2:35 pm

YXU

MDW

21h 40m

3 stops

10:30 am - 5:20 am

MDW

YXU

17h 50m

3 stops

$951Multiple Airlines

Mon, May 4 - Wed, May 6

6:10 am - 5:58 pm

YXU

MDW

12h 48m

2 stops

9:29 am - 5:20 am

MDW

YXU

18h 51m

2 stops

$1,362WestJet

Mon, May 4 - Wed, May 6

6:10 am - 6:31 pm

YXU

MDW

13h 21m

2 stops

6:55 pm - 1:50 pm

MDW

YXU

17h 55m

2 stops

$1,451WestJet

Wed, Jul 1 - Sat, Jul 4

6:10 am - 8:47 am

YXU

MDW

27h 37m

2 stops

9:29 am - 5:20 am

MDW

YXU

18h 51m

2 stops

$1,625WestJet

Thu, Apr 30 - Mon, May 4

United Airlines flights from London, Ontario to Illinois

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

United Airlines

May 4

YXU9:30 amLondon

4h 55m

1 stop

ORD1:25 pmChicago O'Hare Intl

May 6

ORD12:55 pmChicago O'Hare Intl

7h 43m

2 stops

YXU9:38 pmLondon

$571

United Airlines

May 4

YXU9:30 amLondon

10h 52m

2 stops

ORD7:22 pmChicago O'Hare Intl

May 6

ORD11:00 amChicago O'Hare Intl

9h 38m

2 stops

YXU9:38 pmLondon

$577

United Airlines

May 8

YXU12:20 pmLondon

10h 20m

2 stops

ORD9:40 pmChicago O'Hare Intl

May 15

ORD12:55 pmChicago O'Hare Intl

7h 43m

2 stops

YXU9:38 pmLondon

$600

WestJet flights from London, Ontario to Illinois

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

WestJet

Jul 1

YXU6:10 amLondon

11h 52m

2 stops

ORD5:02 pmChicago O'Hare Intl

Jul 4

ORD5:30 pmChicago O'Hare Intl

19h 20m

2 stops

YXU1:50 pmLondon

$1,274

WestJet

May 4

YXU6:10 amLondon

12h 48m

2 stops

MDW5:58 pmChicago Midway

May 6

MDW9:29 amChicago Midway

18h 51m

2 stops

YXU5:20 amLondon

$1,362

WestJet

Jul 1

YXU6:10 amLondon

13h 21m

2 stops

MDW6:31 pmChicago Midway

Jul 4

MDW6:55 pmChicago Midway

17h 55m

2 stops

YXU1:50 pmLondon

$1,451

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/2

9:30 am-1:25 pm

1 stop4h 55m

Chicago O'Hare Intl

Tue 5/5

3:50 pm-9:38 pm

1 stop4h 48m

$506

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/2

5:10 am-9:05 am

1 stop4h 55m

Chicago O'Hare Intl

Tue 5/5

2:15 pm-9:38 pm

1 stop6h 23m

$508

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/2

5:10 am-9:05 am

1 stop4h 55m

Chicago O'Hare Intl

Tue 5/5

11:05 am-9:38 pm

2 stops9h 33m

$509

Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Thu 4/30

9:25 am-1:05 pm

1 stop4h 40m

Chicago O'Hare Intl

Mon 5/4

3:50 pm-9:38 pm

1 stop4h 48m

$510

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/2

12:20 pm-8:08 pm

2 stops8h 48m

Chicago O'Hare Intl

Tue 5/5

2:15 pm-9:38 pm

1 stop6h 23m

$511

LondonChicago

YXU - ORD

YXUORD

London

Sat 5/2

12:20 pm-8:08 pm

2 stops8h 48m

Chicago O'Hare Intl

Tue 5/5

3:50 pm-9:38 pm

1 stop4h 48m

$512

LondonChicago

YXU - MDW

YXUMDW

London

Mon 5/4

5:55 pm-2:35 pm

3 stops21h 40m

Chicago Midway

Wed 5/6

10:30 am-5:20 am

3 stops17h 50m

$951

LondonChicago

YXU - MDW

YXUMDW

London

Mon 5/4

6:10 am-5:58 pm

2 stops12h 48m

Chicago Midway

Wed 5/6

9:29 am-5:20 am

2 stops18h 51m

$1,362

LondonChicago

YXU - MDW

YXUMDW

London

Wed 7/1

6:10 am-6:31 pm

2 stops13h 21m

Chicago Midway

Sat 7/4

6:55 pm-1:50 pm

2 stops17h 55m

$1,451

LondonChicago

YXU - MDW

YXUMDW

London

Thu 4/30

6:10 am-8:47 am

2 stops27h 37m

Chicago Midway

Mon 5/4

9:29 am-5:20 am

2 stops18h 51m

$1,625

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 and United Airlines are the most popular carriers operating from London to Illinois

What 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 48% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 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 51m
Direct flights	None

The fastest flight from London, Ontario to Illinois takes 4h 51m

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 were last updated today.
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?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Illinois for you.

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

Yes. All flights to Illinois 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 Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Illinois.

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

Yes momondo offers price alerts on flights to Illinois from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.