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Cheap flights from London, ON to Illinois from C$ 461

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ORD
29 Jul — 5 Aug1
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 29 June 2026.

Sat 31/103:25 p.m.
YXU
-
ORD
1 stop5h 18m
Air Canada
Wed 4/114:30 p.m.
ORD
-
YXU
1 stop4h 22m
Air Canada
Deal found 24/6C$ 758
Thu 3/96:10 a.m.
YXU
-
ORD
1 stop11h 30m
WestJet
Sat 5/95:30 p.m.
ORD
-
YXU
1 stop10h 50m
WestJet
Deal found 25/6C$ 769
Fri 24/710:05 a.m.
YXU
-
ORD
1 stop4h 17m
Air Canada
Fri 31/73:45 p.m.
ORD
-
YXU
1 stop3h 47m
Air Canada
Deal found 26/6C$ 793
Fri 17/710:05 a.m.
YXU
-
ORD
1 stop5h 50m
Air Canada
Mon 20/79:50 a.m.
ORD
-
YXU
1 stop4h 02m
Air Canada
Deal found 27/6C$ 795
Sun 9/810:05 a.m.
YXU
-
ORD
1 stop4h 17m
Air Canada
Sun 16/89:50 a.m.
ORD
-
YXU
1 stop3h 59m
Air Canada
Deal found 25/6C$ 803
Tue 11/82:40 p.m.
YXU
-
MDW
3 stops22h 59m
Multiple Airlines
Tue 18/810:25 a.m.
MDW
-
YXU
3 stops17h 55m
Multiple Airlines
Deal found 27/6C$ 1,347
Thu 3/96:10 a.m.
YXU
-
MDW
2 stops13h 23m
WestJet
Fri 4/99:24 a.m.
MDW
-
YXU
2 stops18h 56m
WestJet
Deal found 24/6C$ 1,673
Tue 11/82:40 p.m.
YXU
-
MDW
3 stops22h 59m
WestJet
Tue 18/89:59 a.m.
MDW
-
YXU
2 stops18h 21m
WestJet
Deal found 27/6C$ 1,699
Sat 18/76:10 a.m.
YXU
-
MDW
2 stops12h 42m
Multiple Airlines
Tue 21/710:25 a.m.
MDW
-
YXU
3 stops17h 55m
Multiple Airlines
Deal found 24/6C$ 1,748
Thu 3/96:10 a.m.
YXU
-
MDW
3 stops28h 07m
WestJet
Sat 5/99:59 a.m.
MDW
-
YXU
2 stops18h 21m
WestJet
Deal found 25/6C$ 1,781
Sun 9/86:10 a.m.
YXU
-
MDW
3 stops28h 35m
Multiple Airlines
Sun 16/86:42 p.m.
MDW
-
YXU
3 stops33h 38m
Multiple Airlines
Deal found 25/6C$ 1,838
Sat 18/76:10 a.m.
YXU
-
MDW
2 stops12h 42m
WestJet
Tue 21/71:18 p.m.
MDW
-
YXU
2 stops15h 02m
WestJet
Deal found 24/6C$ 1,862

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 29 June 2026.

Round-trip from

C$ 758

One-way from

C$ 461
Air Canada
  • Air Canada
  • 31/10-4/11
  • 2 total stops
  • 9h 40m total
  • London to Illinois
Search Deals
Air Canada
  • Air Canada
  • 6/8
  • 1 total stop
  • 4h 20m 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 29 June 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 31/10

3:25 p.m.-7:43 p.m.

1 stop5h 18m

Chicago O'Hare Intl

Wed 4/11

4:30 p.m.-9:52 p.m.

1 stop4h 22m

C$ 761
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Fri 24/7

10:05 a.m.-1:22 p.m.

1 stop4h 17m

Chicago O'Hare Intl

Fri 31/7

3:45 p.m.-8:32 p.m.

1 stop3h 47m

C$ 793

LondonChicago

YXU - ORD

YXUORD

London

Fri 17/7

10:05 a.m.-2:55 p.m.

1 stop5h 50m

Chicago O'Hare Intl

Mon 20/7

9:50 a.m.-2:52 p.m.

1 stop4h 02m

C$ 795

LondonChicago

YXU - ORD

YXUORD

London

Thu 19/11

5:45 a.m.-4:37 p.m.

2 stops11h 52m

Chicago O'Hare Intl

Sun 22/11

4:00 p.m.-9:46 p.m.

1 stop4h 46m

C$ 860

LondonChicago

YXU - ORD

YXUORD

London

Sat 31/10

3:25 p.m.-11:37 p.m.

2 stops9h 12m

Chicago O'Hare Intl

Wed 4/11

6:00 a.m.-2:47 p.m.

2 stops7h 47m

C$ 863

LondonChicago

YXU - ORD

YXUORD

London

Thu 3/9

3:30 p.m.-11:22 p.m.

2 stops8h 52m

Chicago O'Hare Intl

Sat 5/9

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

1 stop6h 25m

C$ 877

LondonChicago

YXU - ORD

YXUORD

London

Wed 12/8

10:05 a.m.-2:05 p.m.

1 stop5h 00m

Chicago O'Hare Intl

Wed 19/8

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

1 stop5h 00m

C$ 888

LondonChicago

YXU - ORD

YXUORD

London

Fri 17/7

6:20 p.m.-10:05 p.m.

1 stop4h 45m

Chicago O'Hare Intl

Mon 20/7

6:00 a.m.-2:52 p.m.

2 stops7h 52m

C$ 888

LondonChicago

YXU - ORD

YXUORD

London

Fri 24/7

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

2 stops14h 26m

Chicago O'Hare Intl

Fri 31/7

3:45 p.m.-8:32 p.m.

1 stop3h 47m

C$ 896

LondonChicago

YXU - MDW

YXUMDW

London

Tue 11/8

2:40 p.m.-12:39 p.m.

3 stops22h 59m

Chicago Midway

Tue 18/8

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

3 stops17h 55m

C$ 1,347

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/6

Showing 1-10 of 30 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 18m. 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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