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Cheap flights from London, ON to Illinois from C$ 367

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ORD
14 Jun — 21 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Illinois

Enter your travel dates to find the best prices.

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 15 May 2026.

Wed 21/1010:05 a.m.
YXU
-
ORD
1 stop4h 18m
Air Canada
Sat 24/102:15 p.m.
ORD
-
YXU
1 stop6h 25m
Air Canada
Deal found 14/5C$ 701
Sun 7/610:05 a.m.
YXU
-
ORD
1 stop4h 20m
Air Canada
Mon 15/69:55 a.m.
ORD
-
YXU
1 stop4h 03m
Air Canada
Deal found 13/5C$ 734
Fri 12/63:30 p.m.
YXU
-
ORD
1 stop4h 55m
Air Canada
Fri 19/68:40 p.m.
ORD
-
YXU
1 stop11h 37m
Air Canada
Deal found 14/5C$ 781
Fri 29/59:30 a.m.
YXU
-
ORD
1 stop4h 55m
Air Canada
Thu 4/69:55 a.m.
ORD
-
YXU
1 stop4h 03m
Air Canada
Deal found 14/5C$ 799
Mon 29/66:10 p.m.
YXU
-
ORD
1 stop4h 55m
United Airlines
Mon 6/72:15 p.m.
ORD
-
YXU
1 stop6h 25m
United Airlines
Deal found 15/5C$ 823
Thu 25/65:10 a.m.
YXU
-
ORD
1 stop4h 50m
United Airlines
Thu 2/79:50 a.m.
ORD
-
YXU
1 stop4h 05m
United Airlines
Deal found 11/5C$ 825
Fri 12/62:40 p.m.
YXU
-
MDW
3 stops28h 31m
WestJet
Fri 19/69:17 a.m.
MDW
-
YXU
3 stops19h 03m
WestJet
Deal found 14/5C$ 1,504
Sun 7/66:10 a.m.
YXU
-
MDW
2 stops13h 08m
WestJet
Mon 15/69:54 a.m.
MDW
-
YXU
2 stops26h 56m
WestJet
Deal found 11/5C$ 1,560
Fri 29/52:40 p.m.
YXU
-
MDW
3 stops28h 53m
Multiple Airlines
Thu 4/610:15 a.m.
MDW
-
YXU
3 stops26h 35m
Multiple Airlines
Deal found 14/5C$ 1,575
Thu 11/65:55 p.m.
YXU
-
MDW
3 stops25h 36m
WestJet
Wed 17/69:17 a.m.
MDW
-
YXU
3 stops19h 03m
WestJet
Deal found 14/5C$ 1,699
Thu 25/65:55 p.m.
YXU
-
MDW
3 stops25h 36m
WestJet
Thu 2/71:49 p.m.
MDW
-
YXU
3 stops23h 01m
WestJet
Deal found 11/5C$ 1,733
Thu 11/66:10 a.m.
YXU
-
MDW
2 stops13h 21m
Multiple Airlines
Wed 17/610:15 a.m.
MDW
-
YXU
3 stops18h 05m
Multiple Airlines
Deal found 14/5C$ 1,787

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 15 May 2026.

Round-trip from

C$ 701

One-way from

C$ 367
Air Canada
  • Air Canada
  • 21/10-24/10
  • 2 total stops
  • 10h 43m total
  • London to Illinois
Search Deals
9/6
  • 9/6
  • 3 total stops
  • 32h 31m total
  • 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 629,999 searches. Data last updated 15 May 2026.
Use the filters below to find and compare flights from London to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

9:50 a.m.-2:55 p.m.

1 stop4h 05m

C$ 702
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

Mon 15/6

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

1 stop4h 03m

C$ 734

LondonChicago

YXU - ORD

YXUORD

London

Thu 25/6

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

1 stop4h 50m

Chicago O'Hare Intl

Thu 2/7

9:50 a.m.-2:55 p.m.

1 stop4h 05m

C$ 737

LondonChicago

YXU - ORD

YXUORD

London

Mon 29/6

6:10 p.m.-10:05 p.m.

1 stop4h 55m

Chicago O'Hare Intl

Mon 6/7

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

1 stop6h 25m

C$ 823

LondonChicago

YXU - ORD

YXUORD

London

Thu 25/6

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

1 stop4h 50m

Chicago O'Hare Intl

Thu 2/7

9:50 a.m.-2:55 p.m.

1 stop4h 05m

C$ 825

LondonChicago

YXU - ORD

YXUORD

London

Thu 11/6

5:10 a.m.-2:29 p.m.

2 stops10h 19m

Chicago O'Hare Intl

Wed 17/6

2:56 p.m.-9:38 p.m.

1 stop5h 42m

C$ 832

LondonChicago

YXU - ORD

YXUORD

London

Thu 4/6

9:30 a.m.-5:02 p.m.

2 stops8h 32m

Chicago O'Hare Intl

Sun 7/6

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

1 stop4h 03m

C$ 833

LondonChicago

YXU - MDW

YXUMDW

London

Fri 12/6

2:40 p.m.-6:11 p.m.

3 stops28h 31m

Chicago Midway

Fri 19/6

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

3 stops19h 03m

C$ 1,504

LondonChicago

YXU - MDW

YXUMDW

London

Sun 7/6

6:10 a.m.-6:18 p.m.

2 stops13h 08m

Chicago Midway

Mon 15/6

9:54 a.m.-1:50 p.m.

2 stops26h 56m

C$ 1,560

LondonChicago

YXU - MDW

YXUMDW

London

Thu 25/6

5:55 p.m.-6:31 p.m.

3 stops25h 36m

Chicago Midway

Thu 2/7

1:49 p.m.-1:50 p.m.

3 stops23h 01m

C$ 1,733

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 28 resultsSorted by cheapest first
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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
No data available for this route at this time. Please check back soon.

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?

    If you book a flight to Illinois from London, you will be flying from London, which is the city’s only airport. London (YXU) is located 8.6 km from the centre of London.

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

    There are many flights that can get you from London, Ontario to Illinois in 4h 20m. Fly via Air Canada or WestJet to get the fastest option. Airlines will cover a distance of 565 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

See more FAQs

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Fly with Cheapflights

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How does Cheapflights help users find flights from London to Illinois?

Cheapflights makes it easy to find London to Illinois flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Illinois?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Illinois for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Illinois with no change fees?

Yes! Cheapflights helps users easily find flights from London to Illinois with no change fees.

Can Cheapflights notify me if prices for flights from London to Illinois become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Illinois from London today and book when prices fit your budget.

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