What is the cheapest airline that flies from London to Illinois?

WestJet, Air Canada, and United Airlines are the most popular carriers operating from London to Illinois

Which airlines fly to Illinois?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Illinois from London, Ontario according to our data. Air Canada is the first choice among our users, with 72% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London Airport to Illinois?

Prices for flights from London Airport to Illinois are refreshed on a daily basis.

How old do you have to be to fly from London Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 274 Cheap Flights from London to Illinois in 2025

1 adult

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Find the cheapest flights from London, Ontario to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

6:00 a.m. - 4:43 p.m.YXU-ORD

11h 43m1 stop

5:30 p.m. - 5:12 a.m.ORD-YXU

10h 42m1 stop

C$ 469WestJet

Find Deal

Fri, 3 Oct - Mon, 6 Oct

8:00 p.m. - 4:43 p.m.YXU-ORD

21h 43m1 stop

2:20 p.m. - 7:12 p.m.ORD-YXU

27h 52m1 stop

C$ 508WestJet

Find Deal

Fri, 24 Oct - Sun, 26 Oct

6:10 a.m. - 9:08 a.m.YXU-ORD

3h 58m1 stop

3:50 p.m. - 9:29 p.m.ORD-YXU

4h 39m1 stop

C$ 655Air Canada

Find Deal

Sat, 13 Sep - Sat, 20 Sep

8:00 p.m. - 7:50 p.m.YXU-ORD

24h 50m2 stops

5:30 p.m. - 5:12 a.m.ORD-YXU

10h 42m1 stop

C$ 673

Find Deal

Sat, 13 Sep - Sat, 20 Sep

9:55 a.m. - 3:04 p.m.YXU-ORD

6h 09m1 stop

2:00 p.m. - 9:29 p.m.ORD-YXU

6h 29m1 stop

C$ 684Air Canada

Find Deal

Thu, 28 Aug - Thu, 4 Sep

6:00 a.m. - 4:43 p.m.YXU-ORD

11h 43m1 stop

10:41 p.m. - 7:12 p.m.ORD-YXU

19h 31m2 stops

C$ 693

Find Deal

Fri, 24 Oct - Sun, 26 Oct

8:00 p.m. - 5:40 a.m.YXU-ORD

34h 40m2 stops

5:30 p.m. - 5:12 a.m.ORD-YXU

10h 42m1 stop

C$ 717

Find Deal

Thu, 28 Aug - Thu, 4 Sep

6:00 a.m. - 4:50 a.m.YXU-ORD

23h 50m3 stops

5:30 p.m. - 5:12 a.m.ORD-YXU

10h 42m1 stop

C$ 724

Find Deal

Thu, 28 Aug - Thu, 4 Sep

10:00 a.m. - 1:14 p.m.YXU-ORD

4h 14m1 stop

6:00 a.m. - 3:17 p.m.ORD-YXU

8h 17m2 stops

C$ 746United Airlines

Find Deal

Sun, 14 Sep - Sun, 21 Sep

10:00 a.m. - 7:48 p.m.YXU-ORD

10h 48m2 stops

6:00 a.m. - 3:17 p.m.ORD-YXU

8h 17m2 stops

C$ 753United Airlines

Find Deal

Sun, 14 Sep - Sun, 21 Sep

WestJet flights from London, Ontario to Illinois

Our best WestJet deals on London, Ontario to Illinois flight tickets

WestJet

3 Oct

YXU6:00 a.m.London

11h 43m

1 stop

ORD4:43 p.m.Chicago O'Hare Intl

6 Oct

ORD5:30 p.m.Chicago O'Hare Intl

10h 42m

1 stop

YXU5:12 a.m.London

C$ 469

Find similar

WestJet

24 Oct

YXU8:00 p.m.London

21h 43m

1 stop

ORD4:43 p.m.Chicago O'Hare Intl

26 Oct

ORD2:20 p.m.Chicago O'Hare Intl

27h 52m

1 stop

YXU7:12 p.m.London

C$ 508

Find similar

WestJet

15 Aug

YXU8:00 p.m.London

14h 36m

2 stops

MDW9:36 a.m.Chicago Midway

18 Aug

MDW12:43 p.m.Chicago Midway

29h 26m

2 stops

YXU7:09 p.m.London

C$ 1,398

Find similar

Air Canada flights from London, Ontario to Illinois

Our best Air Canada deals on London, Ontario to Illinois flight tickets

Air Canada

13 Sep

YXU6:10 a.m.London

3h 58m

1 stop

ORD9:08 a.m.Chicago O'Hare Intl

20 Sep

ORD3:50 p.m.Chicago O'Hare Intl

4h 39m

1 stop

YXU9:29 p.m.London

C$ 655

Find similar

Air Canada

28 Aug

YXU9:55 a.m.London

6h 09m

1 stop

ORD3:04 p.m.Chicago O'Hare Intl

4 Sep

ORD2:00 p.m.Chicago O'Hare Intl

6h 29m

1 stop

YXU9:29 p.m.London

C$ 684

Find similar

Air Canada

3 Oct

YXU6:15 a.m.London

6h 46m

2 stops

ORD12:01 p.m.Chicago O'Hare Intl

6 Oct

ORD2:00 p.m.Chicago O'Hare Intl

6h 27m

1 stop

YXU9:27 p.m.London

C$ 725

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

YXU - ORD

YXUORD

London

Fri 3/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Mon 6/10

5:30 p.m.-5:12 a.m.

1 stop10h 42m

C$ 469

LondonChicago

YXU - ORD

YXUORD

London

Fri 24/10

8:00 p.m.-4:43 p.m.

1 stop21h 43m

Chicago O'Hare Intl

Sun 26/10

2:20 p.m.-7:12 p.m.

1 stop27h 52m

C$ 508

LondonChicago

YXU - ORD

YXUORD

London

Sat 13/9

6:10 a.m.-9:08 a.m.

1 stop3h 58m

Chicago O'Hare Intl

Sat 20/9

3:50 p.m.-9:29 p.m.

1 stop4h 39m

C$ 655

LondonChicago

YXU - ORD

YXUORD

London

Sat 13/9

8:00 p.m.-7:50 p.m.

2 stops24h 50m

Chicago O'Hare Intl

Sat 20/9

5:30 p.m.-5:12 a.m.

1 stop10h 42m

C$ 673

LondonChicago

YXU - ORD

YXUORD

London

Thu 28/8

9:55 a.m.-3:04 p.m.

1 stop6h 09m

Chicago O'Hare Intl

Thu 4/9

2:00 p.m.-9:29 p.m.

1 stop6h 29m

C$ 684

LondonChicago

YXU - ORD

YXUORD

London

Fri 24/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Chicago O'Hare Intl

Sun 26/10

10:41 p.m.-7:12 p.m.

2 stops19h 31m

C$ 693

LondonChicago

YXU - ORD

YXUORD

London

Thu 28/8

8:00 p.m.-5:40 a.m.

2 stops34h 40m

Chicago O'Hare Intl

Thu 4/9

5:30 p.m.-5:12 a.m.

1 stop10h 42m

C$ 717

LondonChicago

YXU - ORD

YXUORD

London

Thu 28/8

6:00 a.m.-4:50 a.m.

3 stops23h 50m

Chicago O'Hare Intl

Thu 4/9

5:30 p.m.-5:12 a.m.

1 stop10h 42m

C$ 724

LondonChicago

YXU - ORD

YXUORD

London

Sun 14/9

10:00 a.m.-1:14 p.m.

1 stop4h 14m

Chicago O'Hare Intl

Sun 21/9

6:00 a.m.-3:17 p.m.

2 stops8h 17m

C$ 746

LondonChicago

YXU - ORD

YXUORD

London

Sun 14/9

10:00 a.m.-7:48 p.m.

2 stops10h 48m

Chicago O'Hare Intl

Sun 21/9

6:00 a.m.-3:17 p.m.

2 stops8h 17m

C$ 753

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London, Ontario to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Illinois?

According to our data, Thursday is the cheapest day to fly to Illinois from London, Ontario. The lowest ticket price found for a Thursday departure recently was C$ 773. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Illinois is Monday, with ticket prices averaging around C$ 870.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from London, Ontario to Illinois during this time can be as low as C$ 849. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 881 on average. Flights to Illinois from London, Ontario in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Cheap London, Ontario to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London, Ontario to Illinois

Best price found	C$ 274
Fastest flight time	3h 58m
Direct flights	None
Airports in Illinois	2 airports

The best one-way flight to Illinois from London, Ontario in the past 72 hours is C$ 274. The best round-trip flight deal from London, Ontario to Illinois found on momondo in the last 72 hours is C$ 469.

The fastest flight from London, Ontario to Illinois takes 3h 58m

There are no direct flights from London, Ontario to Illinois. Popular non-direct routes for this connection are London Airport - Chicago O'Hare Intl Airport and London Airport - Chicago Midway Airport.

There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

Search flight deals

When did momondo last update prices for flights from London Airport to Illinois?
Prices for flights from London Airport to Illinois are refreshed on a daily basis.
How old do you have to be to fly from London Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from London to Illinois?

It is quick and easy to find London to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from London to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from London with this policy.

How can momondo help me find flights from London to Illinois?

Once all potential London to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.