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Cheap flights from London, ON to Illinois from C$ 377

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 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ORD
5 Jun — 12 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 6 May 2026.

Sat 23/512:20 p.m.
YXU
-
ORD
1 stop5h 39m
Air Canada
Wed 27/52:15 p.m.
ORD
-
YXU
1 stop6h 23m
Air Canada
Deal found 30/4C$ 694
Mon 1/69:30 a.m.
YXU
-
ORD
1 stop6h 25m
Air Canada
Sun 7/69:55 a.m.
ORD
-
YXU
1 stop4h 03m
Air Canada
Deal found 3/5C$ 730
Wed 17/610:05 a.m.
YXU
-
ORD
1 stop6h 45m
United Airlines
Wed 24/65:00 a.m.
ORD
-
YXU
2 stops8h 57m
United Airlines
Deal found 3/5C$ 822
Mon 1/65:10 a.m.
YXU
-
ORD
1 stop4h 50m
Air Canada
Mon 8/69:55 a.m.
ORD
-
YXU
1 stop4h 03m
Air Canada
Deal found 4/5C$ 825
Mon 1/65:55 p.m.
YXU
-
MDW
3 stops25h 38m
Multiple Airlines
Sun 7/610:15 a.m.
MDW
-
YXU
3 stops18h 05m
Multiple Airlines
Deal found 3/5C$ 1,738
Sat 27/66:10 a.m.
YXU
-
MDW
2 stops12h 44m
Multiple Airlines
Tue 30/610:25 a.m.
MDW
-
YXU
3 stops17h 55m
Multiple Airlines
Deal found 5/5C$ 1,930
Mon 1/65:55 p.m.
YXU
-
MDW
3 stops25h 38m
WestJet
Sun 7/69:54 a.m.
MDW
-
YXU
2 stops18h 26m
WestJet
Deal found 3/5C$ 2,107
Thu 6/88:40 p.m.
YXU
-
MDW
2 stops22h 38m
WestJet
Sun 9/89:49 a.m.
MDW
-
YXU
3 stops18h 31m
WestJet
Deal found 2/5C$ 2,127
Wed 13/56:10 a.m.
YXU
-
MDW
3 stops28h 35m
Multiple Airlines
Fri 15/59:22 a.m.
MDW
-
YXU
3 stops18h 58m
Multiple Airlines
Deal found 4/5C$ 2,172
Wed 21/106:10 a.m.
YXU
-
MDW
2 stops13h 27m
WestJet
Sat 24/109:30 a.m.
MDW
-
YXU
2 stops18h 50m
WestJet
Deal found 5/5C$ 2,187
Fri 8/56:10 a.m.
YXU
-
MDW
2 stops13h 23m
WestJet
Sat 9/51:59 p.m.
MDW
-
YXU
2 stops14h 21m
WestJet
Deal found 5/5C$ 2,256
Thu 18/66:10 a.m.
YXU
-
MDW
2 stops13h 21m
WestJet
Thu 25/61:49 p.m.
MDW
-
YXU
2 stops23h 01m
WestJet
Deal found 4/5C$ 2,271

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 6 May 2026.

Round-trip from

C$ 694

One-way from

C$ 377
Air Canada
  • Air Canada
  • 23/5-27/5
  • 2 total stops
  • 12h 02m total
  • London to Illinois
Search Deals
Air Canada
  • Air Canada
  • 14/6
  • 1 total stop
  • 4h 55m 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 6 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

Sat 23/5

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

1 stop5h 39m

Chicago O'Hare Intl

Wed 27/5

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

1 stop6h 23m

C$ 694
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Wed 17/6

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

1 stop4h 55m

Chicago O'Hare Intl

Wed 24/6

10:43 a.m.-5:32 p.m.

1 stop5h 49m

C$ 822

LondonChicago

YXU - ORD

YXUORD

London

Fri 17/7

5:10 a.m.-9:45 a.m.

1 stop5h 35m

Chicago O'Hare Intl

Mon 20/7

7:00 a.m.-2:55 p.m.

2 stops6h 55m

C$ 822

LondonChicago

YXU - ORD

YXUORD

London

Thu 6/8

10:05 a.m.-11:31 p.m.

2 stops14h 26m

Chicago O'Hare Intl

Sun 9/8

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

1 stop4h 05m

C$ 831

LondonChicago

YXU - ORD

YXUORD

London

Mon 1/6

3:30 p.m.-11:30 p.m.

2 stops9h 00m

Chicago O'Hare Intl

Sun 7/6

8:50 a.m.-2:58 p.m.

1 stop5h 08m

C$ 831

LondonChicago

YXU - MDW

YXUMDW

London

Sat 27/6

6:10 a.m.-5:54 p.m.

2 stops12h 44m

Chicago Midway

Tue 30/6

10:25 a.m.-5:20 a.m.

3 stops17h 55m

C$ 1,930

LondonChicago

YXU - MDW

YXUMDW

London

Thu 6/8

8:40 p.m.-6:18 p.m.

2 stops22h 38m

Chicago Midway

Sun 9/8

9:49 a.m.-5:20 a.m.

3 stops18h 31m

C$ 2,127

LondonChicago

YXU - MDW

YXUMDW

London

Wed 21/10

6:10 a.m.-6:37 p.m.

2 stops13h 27m

Chicago Midway

Sat 24/10

9:30 a.m.-5:20 a.m.

2 stops18h 50m

C$ 2,187

LondonChicago

YXU - MDW

YXUMDW

London

Thu 18/6

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

2 stops13h 21m

Chicago Midway

Thu 25/6

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

2 stops23h 01m

C$ 2,271

LondonChicago

YXU - MDW

YXUMDW

London

Tue 22/9

6:10 a.m.-9:50 a.m.

2 stops28h 40m

Chicago Midway

Wed 23/9

1:00 p.m.-5:20 a.m.

2 stops15h 20m

C$ 2,326

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 26 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 5h 39m. 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

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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