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Illinois

$236+ Cheap flights from London, ON (YXU) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ORD
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap flight deals from London to Illinois

Cheapest flights from London to Illinois
Explore the most affordable flight options available from London to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:10 am
YXU
-
ORD
1 stop11h 30m
Multiple Airlines
Wed 4/299:18 pm
ORD
-
YXU
2 stops31h 02m
Multiple Airlines
Deal found 2/11$412
This Air Canada deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:30 am
YXU
-
ORD
1 stop6h 25m
Air Canada
Sat 7/183:45 pm
ORD
-
YXU
1 stop4h 55m
Air Canada
Deal found 2/10$428
This Air Canada deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/279:40 am
YXU
-
ORD
1 stop4h 21m
Air Canada
Fri 4/32:00 pm
ORD
-
YXU
1 stop6h 18m
Air Canada
Deal found 2/11$429
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:40 pm
YXU
-
ORD
1 stop5h 24m
United Airlines
Thu 2/266:00 am
ORD
-
YXU
2 stops10h 05m
United Airlines
Deal found 2/9$482
This United Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/279:40 am
YXU
-
ORD
1 stop6h 30m
United Airlines
Fri 4/31:00 pm
ORD
-
YXU
2 stops7h 18m
United Airlines
Deal found 2/11$483
This Air Canada deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/229:25 am
YXU
-
ORD
1 stop4h 36m
Air Canada
Tue 2/242:00 pm
ORD
-
YXU
1 stop6h 21m
Air Canada
Deal found 2/10$487
This United Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:10 am
YXU
-
ORD
2 stops10h 09m
United Airlines
Wed 4/2911:40 am
ORD
-
YXU
2 stops8h 38m
United Airlines
Deal found 2/11$489
This Air Canada deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:10 am
YXU
-
ORD
1 stop13h 38m
Air Canada
Thu 2/2610:00 am
ORD
-
YXU
1 stop6h 05m
Air Canada
Deal found 2/10$529
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:10 am
YXU
-
ORD
1 stop5h 40m
United Airlines
Tue 2/247:10 am
ORD
-
YXU
2 stops8h 55m
United Airlines
Deal found 2/10$543
This Mytrip deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:55 pm
YXU
-
MDW
3 stops22h 25m
Multiple Airlines
Wed 4/2911:00 am
MDW
-
YXU
3 stops17h 20m
Multiple Airlines
Deal found 2/11$729
This WestJet deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:10 pm
YXU
-
MDW
2 stops14h 44m
WestJet
Thu 2/269:50 am
MDW
-
YXU
2 stops19h 45m
WestJet
Deal found 2/9$1,506
This WestJet deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:10 am
YXU
-
MDW
2 stops13h 26m
WestJet
Wed 4/292:12 pm
MDW
-
YXU
2 stops14h 08m
WestJet
Deal found 2/11$1,580

Find flight deals from London to Illinois

Keep the following information in mind while searching for London to Illinois flight deals. Data was last updated February 13, 2026.

Round-trip from

$412
(Kiwi.com)

One-way from

$236
(Air Canada)
From London to Illinois
Search Deals
One-way flight from London to Illinois
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from London to Illinois that are best for you.

Fly from

London

Fly to

Illinois

Route

Depart

Return

Price

LondonChicago

YXU - ORD

YXUORD

London

Tue 7/14

9:30 am-2:55 pm

1 stop6h 25m

Chicago O'Hare Intl

Sat 7/18

3:45 pm-9:40 pm

1 stop4h 55m

$428

LondonChicago

YXU - ORD

YXUORD

London

Mon 4/27

9:25 am-1:05 pm

1 stop4h 40m

Chicago O'Hare Intl

Wed 4/29

9:50 am-5:03 pm

1 stop6h 13m

$429

LondonChicago

YXU - ORD

YXUORD

London

Mon 2/23

5:40 pm-10:04 pm

1 stop5h 24m

Chicago O'Hare Intl

Thu 2/26

6:00 am-5:05 pm

2 stops10h 05m

$482

LondonChicago

YXU - ORD

YXUORD

London

Tue 7/14

9:30 am-1:22 pm

1 stop4h 52m

Chicago O'Hare Intl

Sat 7/18

7:00 am-3:00 pm

2 stops7h 00m

$482

LondonChicago

YXU - ORD

YXUORD

London

Fri 3/27

9:40 am-3:10 pm

1 stop6h 30m

Chicago O'Hare Intl

Fri 4/3

1:00 pm-9:18 pm

2 stops7h 18m

$483

LondonChicago

YXU - ORD

YXUORD

London

Mon 4/27

5:10 am-2:19 pm

2 stops10h 09m

Chicago O'Hare Intl

Wed 4/29

11:40 am-9:18 pm

2 stops8h 38m

$489

LondonChicago

YXU - ORD

YXUORD

London

Mon 2/23

5:10 am-5:48 pm

1 stop13h 38m

Chicago O'Hare Intl

Thu 2/26

10:00 am-5:05 pm

1 stop6h 05m

$529

LondonChicago

YXU - MDW

YXUMDW

London

Mon 4/27

5:55 pm-3:20 pm

3 stops22h 25m

Chicago Midway

Wed 4/29

11:00 am-5:20 am

3 stops17h 20m

$729

LondonChicago

YXU - MDW

YXUMDW

London

Mon 2/23

8:10 pm-9:54 am

2 stops14h 44m

Chicago Midway

Thu 2/26

9:50 am-6:35 am

2 stops19h 45m

$1,506

LondonChicago

YXU - MDW

YXUMDW

London

Mon 4/27

6:10 am-6:36 pm

2 stops13h 26m

Chicago Midway

Wed 4/29

2:12 pm-5:20 am

2 stops14h 08m

$1,580

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 16 results
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Best time to book a flight from London to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from London with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Illinois

What is the cheapest month to book a flight from London, Ontario to Illinois?

Currently, April is the cheapest month in which you can book a flight from London, Ontario to Illinois (average of $80). Flying from London, Ontario to Illinois in March is currently the most expensive (average of $190). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from London to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from London to Illinois?

    London (YXU) is the airport you will fly out of if you book a flight from London to Illinois. It is only a 5.3 mi journey to London (YXU) from London’s city center.

  • How long is the flight from London, Ontario to Illinois?

    For as low as $482, Air Canada can have you in Illinois from London, Ontario in 5h 24m. The distance between London, Ontario and Illinois is about 351 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from London to Illinois that include hotel bookings?

    Yes. In addition to deals on London to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Illinois.

  • Can I find deals for business class flights from London to Illinois?

    Yes. Cheapflights offers flight deals from London to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London, Ontario to Illinois?

    Currently, April is the cheapest month in which you can book a flight from London, Ontario to Illinois (average of $80). Flying from London, Ontario to Illinois in March is currently the most expensive (average of $190). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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