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.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What is the cheapest time of day to fly from YXU to IL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London, Ontario to Illinois as you normally would.

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.

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.

C$ 368+ Cheap Flights from London, ON to Illinois

Cheap flight deals from London to Illinois

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 September 2026.

Thu 8/109:05 a.m. -

1 stop5h 18m

Wed 14/102:15 p.m. -

1 stop4h 25m

Deal found 6/9C$ 769

Fri 2/105:40 a.m. -

1 stop4h 20m

Tue 6/109:55 a.m. -

1 stop3h 55m

Deal found 2/9C$ 807

Mon 12/103:30 p.m. -

1 stop5h 18m

Sat 17/109:55 a.m. -

1 stop3h 55m

Deal found 5/9C$ 811

Tue 13/103:30 p.m. -

1 stop5h 18m

Mon 19/109:55 a.m. -

1 stop3h 55m

Deal found 5/9C$ 838

Thu 15/103:30 p.m. -

2 stops9h 02m

Fri 16/1012:59 p.m. -

1 stop5h 41m

Deal found 5/9C$ 840

Thu 8/109:05 a.m. -

1 stop6h 30m

Wed 14/103:20 p.m. -

3 stops24h 25m

Deal found 6/9C$ 1,130

Wed 21/106:10 a.m. -

2 stops12h 50m

Sat 24/101:27 p.m. -

2 stops14h 53m

Deal found 2/9C$ 2,497

Wed 21/106:10 a.m. -

2 stops27h 34m

Sat 24/1012:27 p.m. -

2 stops15h 53m

Deal found 5/9C$ 2,781

Find flight deals from London to Illinois

Round-trip from	C$ 582
One-way from	C$ 368

WestJet
18/10-23/10
2 total stops
22h 20m total
London to Illinois

Search Deals

17/10-31/12
3 total stops
25h 24m total
London to Illinois

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Tue 24/11

3:25 p.m.-7:58 p.m.

1 stop5h 33m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 414

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Sat 17/10

6:10 a.m.-9:21 a.m.

3 stops28h 11m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 432

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Thu 1/10

6:10 a.m.-5:38 a.m.

3 stops48h 28m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 436

Quickest round-trip

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Sat 17/10

3:30 p.m.-7:48 p.m.

1 stop5h 18m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 439

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Tue 24/11

6:40 a.m.-5:10 a.m.

3 stops23h 30m

Chicago O'Hare Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 484

LondonChicago

YXU London - MDW Chicago Midway

YXUMDW

London

Thu 1/10

5:55 p.m.-5:51 p.m.

2 stops24h 56m

Chicago Midway

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 504

LondonChicago

YXU London - MDW Chicago Midway

YXUMDW

London

Sat 17/10

6:10 a.m.-5:45 p.m.

2 stops36h 35m

Chicago Midway

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 534

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Thu 8/10

9:05 a.m.-1:23 p.m.

1 stop5h 18m

Chicago O'Hare Intl

Wed 14/10

2:15 p.m.-7:40 p.m.

1 stop4h 25m

C$ 769

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Fri 2/10

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

1 stop4h 20m

Chicago O'Hare Intl

Tue 6/10

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

1 stop3h 55m

C$ 807

LondonChicago

YXU London - ORD Chicago O'Hare Intl

YXUORD

London

Mon 12/10

3:30 p.m.-7:48 p.m.

1 stop5h 18m

Chicago O'Hare Intl

Sun 18/10

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

1 stop3h 55m

C$ 811

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 17 resultsSorted by cheapest first

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.

YXU-ORD

YXU-MDW

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

YXU-USIL

YXU-ORD

YXU-MDW

No data available for this route at this time. Please check back soon.

Related info for your journey

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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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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Cheap flights from London, ON to Illinois from C$ 368

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Illinois

Cheapest flights from London to IllinoisExplore 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 September 2026.

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 September 2026.

Best flights from London to IllinoisDiscover carefully curated flight deals from London to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Discover carefully curated flight deals from London to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Last-minute flights from London to IllinoisDiscover last-minute flight deals from London to Illinois. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Illinois. Data last updated 6 September 2026 and is based on user searches.

One-way flights from London to IllinoisSearch for one-way flight options from London to Illinois. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Search for one-way flight options from London to Illinois. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

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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.

Cheapflights Insights

Related info for your journey

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

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

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

How can I find direct flights from London to Illinois?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to United States

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Search flights from London to Illinois by cabin class

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London and Illinois flights

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

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

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

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

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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 September 2026.

Best flights from London to Illinois
Discover carefully curated flight deals from London to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Last-minute flights from London to Illinois
Discover last-minute flight deals from London to Illinois. Data last updated 6 September 2026 and is based on user searches.

One-way flights from London to Illinois
Search for one-way flight options from London to Illinois. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.