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Cheap flights from London, ON to Illinois from C$ 393

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ORD
10 Jul — 17 Jul1
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 10 June 2026.

Mon 6/73:30 p.m.
YXU
-
ORD
1 stop5h 22m
Air Canada
Mon 13/73:45 p.m.
ORD
-
YXU
1 stop3h 47m
Air Canada
Deal found 6/6C$ 682
Sat 4/710:05 a.m.
YXU
-
ORD
1 stop5h 50m
Air Canada
Sat 11/73:45 p.m.
ORD
-
YXU
1 stop3h 47m
Air Canada
Deal found 6/6C$ 706
Sat 31/105:45 a.m.
YXU
-
ORD
1 stop6h 13m
United Airlines
Wed 4/111:10 p.m.
ORD
-
YXU
2 stops7h 36m
United Airlines
Deal found 8/6C$ 747
Sat 31/105:45 a.m.
YXU
-
ORD
2 stops10h 10m
Air Canada
Wed 4/119:50 a.m.
ORD
-
YXU
1 stop4h 16m
Air Canada
Deal found 9/6C$ 753
Sun 16/810:05 a.m.
YXU
-
ORD
1 stop4h 17m
Air Canada
Tue 18/89:50 a.m.
ORD
-
YXU
1 stop4h 05m
Air Canada
Deal found 9/6C$ 781
Thu 23/710:05 a.m.
YXU
-
ORD
1 stop4h 17m
Air Canada
Thu 30/72:15 p.m.
ORD
-
YXU
1 stop5h 17m
Air Canada
Deal found 8/6C$ 863
Fri 19/610:05 a.m.
YXU
-
ORD
1 stop5h 50m
Air Canada
Sun 28/69:50 a.m.
ORD
-
YXU
1 stop4h 07m
Air Canada
Deal found 9/6C$ 866
Mon 6/75:55 p.m.
YXU
-
MDW
3 stops21h 40m
Multiple Airlines
Mon 13/710:25 a.m.
MDW
-
YXU
3 stops17h 55m
Multiple Airlines
Deal found 6/6C$ 1,592
Mon 20/75:55 p.m.
YXU
-
MDW
3 stops21h 40m
Multiple Airlines
Mon 27/710:25 a.m.
MDW
-
YXU
3 stops29h 20m
Multiple Airlines
Deal found 5/6C$ 1,664
Mon 6/75:55 p.m.
YXU
-
MDW
2 stops17h 10m
WestJet
Mon 13/79:54 a.m.
MDW
-
YXU
2 stops26h 56m
WestJet
Deal found 6/6C$ 1,736
Fri 19/62:40 p.m.
YXU
-
MDW
2 stops23h 29m
WestJet
Sun 28/61:26 p.m.
MDW
-
YXU
2 stops14h 54m
WestJet
Deal found 9/6C$ 1,785
Thu 23/78:40 p.m.
YXU
-
MDW
3 stops18h 55m
Multiple Airlines
Thu 30/710:25 a.m.
MDW
-
YXU
3 stops41h 55m
Multiple Airlines
Deal found 8/6C$ 1,807

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 10 June 2026.

Round-trip from

C$ 682

One-way from

C$ 393
Air Canada
  • Air Canada
  • 6/7-13/7
  • 2 total stops
  • 9h 09m total
  • London to Illinois
Search Deals
Air Canada
  • Air Canada
  • 1/7
  • 1 total stop
  • 5h 50m 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 10 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.-7:35 p.m.

1 stop5h 10m

Chicago O'Hare Intl

Wed 4/11

9:50 a.m.-3:06 p.m.

1 stop4h 16m

C$ 747

LondonChicago

YXU - ORD

YXUORD

London

Sat 31/10

5:45 a.m.-10:58 a.m.

1 stop6h 13m

Chicago O'Hare Intl

Wed 4/11

1:10 p.m.-9:46 p.m.

2 stops7h 36m

C$ 747
Quickest round-trip

LondonChicago

YXU - ORD

YXUORD

London

Tue 1/9

5:40 a.m.-9:00 a.m.

1 stop4h 20m

Chicago O'Hare Intl

Thu 3/9

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

1 stop4h 05m

C$ 781

LondonChicago

YXU - ORD

YXUORD

London

Sun 16/8

5:40 a.m.-9:00 a.m.

1 stop4h 20m

Chicago O'Hare Intl

Tue 18/8

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

2 stops6h 55m

C$ 876

LondonChicago

YXU - ORD

YXUORD

London

Tue 1/9

10:05 a.m.-8:07 p.m.

2 stops11h 02m

Chicago O'Hare Intl

Thu 3/9

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

1 stop4h 05m

C$ 884

LondonChicago

YXU - ORD

YXUORD

London

Mon 20/7

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

1 stop5h 50m

Chicago O'Hare Intl

Mon 27/7

8:40 p.m.-9:17 a.m.

1 stop11h 37m

C$ 899

LondonChicago

YXU - ORD

YXUORD

London

Mon 20/7

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

1 stop4h 45m

Chicago O'Hare Intl

Mon 27/7

9:40 p.m.-2:52 p.m.

2 stops16h 12m

C$ 945

LondonChicago

YXU - ORD

YXUORD

London

Thu 27/8

5:40 a.m.-9:53 a.m.

1 stop5h 13m

Chicago O'Hare Intl

Tue 1/9

5:00 a.m.-2:55 p.m.

2 stops8h 55m

C$ 945

LondonChicago

YXU - MDW

YXUMDW

London

Mon 6/7

5:55 p.m.-2:35 p.m.

3 stops21h 40m

Chicago Midway

Mon 13/7

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

3 stops17h 55m

C$ 1,592

LondonChicago

YXU - MDW

YXUMDW

London

Mon 20/7

5:55 p.m.-2:35 p.m.

3 stops21h 40m

Chicago Midway

Mon 27/7

10:25 a.m.-4:45 p.m.

3 stops29h 20m

C$ 1,664

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 27 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 10m. Fly via Air Canada, United Airlines, 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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