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

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

Which airlines fly to London, Ontario?

United Airlines, Air Canada and American Airlines are the top three most popular airlines that fly to London, Ontario from Illinois according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when travelling to London, Ontario. Keep in mind that there are 3 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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

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

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to London Airport.

What documentation or ID do you need to fly to London Airport?

The required travel and health documents for your London Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 427 Cheap Flights from Illinois to London, Ontario in 2026

1 adult

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Find the cheapest flights from Illinois to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:55 a.m. - 2:58 p.m.

ORD

YXU

4h 03m

1 stop

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

YXU

ORD

4h 17m

1 stop

C$ 823Air Canada

Mon, 15 Jun - Mon, 22 Jun

9:55 a.m. - 2:58 p.m.

ORD

YXU

4h 03m

1 stop

5:10 a.m. - 9:00 a.m.

YXU

ORD

4h 50m

1 stop

C$ 825Air Canada

Tue, 16 Jun - Tue, 23 Jun

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

ORD

YXU

10h 50m

1 stop

6:10 a.m. - 4:40 p.m.

YXU

ORD

11h 30m

1 stop

C$ 831WestJet

Sat, 23 May - Tue, 26 May

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

ORD

YXU

10h 50m

1 stop

6:10 a.m. - 4:40 p.m.

YXU

ORD

11h 30m

1 stop

C$ 864WestJet

Sat, 23 May - Tue, 26 May

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

ORD

YXU

6h 23m

1 stop

9:30 a.m. - 1:25 p.m.

YXU

ORD

4h 55m

1 stop

C$ 913Air Canada

Mon, 25 May - Thu, 28 May

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

ORD

YXU

6h 23m

1 stop

12:20 p.m. - 8:08 p.m.

YXU

ORD

8h 48m

2 stops

C$ 924Air Canada

Sat, 23 May - Tue, 26 May

9:55 a.m. - 2:58 p.m.

ORD

YXU

4h 03m

1 stop

5:10 a.m. - 2:50 p.m.

YXU

ORD

10h 40m

2 stops

C$ 926Air Canada

Tue, 9 Jun - Wed, 10 Jun

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

ORD

YXU

10h 50m

1 stop

2:40 p.m. - 5:07 a.m.

YXU

ORD

15h 27m

2 stops

C$ 952Multiple Airlines

Sat, 6 Jun - Fri, 12 Jun

3:50 p.m. - 9:38 p.m.

ORD

YXU

4h 48m

1 stop

9:30 a.m. - 8:08 p.m.

YXU

ORD

11h 38m

2 stops

C$ 959Air Canada

Mon, 25 May - Thu, 28 May

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

STL

YXU

6h 23m

1 stop

3:30 p.m. - 8:09 p.m.

YXU

STL

5h 39m

1 stop

C$ 993Air Canada

Tue, 16 Jun - Wed, 17 Jun

WestJet flights from Illinois to London, Ontario

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

WestJet

23 May

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

10h 50m

1 stop

YXU5:20 a.m.London

26 May

YXU6:10 a.m.London

11h 30m

1 stop

ORD4:40 p.m.Chicago O'Hare Intl

C$ 831

WestJet

23 May

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

10h 50m

1 stop

YXU5:20 a.m.London

26 May

YXU6:10 a.m.London

11h 30m

1 stop

ORD4:40 p.m.Chicago O'Hare Intl

C$ 864

WestJet

27 May

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

43h 20m

2 stops

YXU1:50 p.m.London

2 Jun

YXU5:55 p.m.London

23h 45m

1 stop

ORD4:40 p.m.Chicago O'Hare Intl

C$ 1,088

Air Canada flights from Illinois to London, Ontario

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

Air Canada

15 Jun

ORD9:55 a.m.Chicago O'Hare Intl

4h 03m

1 stop

YXU2:58 p.m.London

22 Jun

YXU10:05 a.m.London

4h 17m

1 stop

ORD1:22 p.m.Chicago O'Hare Intl

C$ 823

Air Canada

16 Jun

ORD9:55 a.m.Chicago O'Hare Intl

4h 03m

1 stop

YXU2:58 p.m.London

23 Jun

YXU5:10 a.m.London

4h 50m

1 stop

ORD9:00 a.m.Chicago O'Hare Intl

C$ 825

Air Canada

25 May

ORD2:15 p.m.Chicago O'Hare Intl

6h 23m

1 stop

YXU9:38 p.m.London

28 May

YXU9:30 a.m.London

4h 55m

1 stop

ORD1:25 p.m.Chicago O'Hare Intl

C$ 913

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 15/6

9:55 a.m.-2:58 p.m.

1 stop4h 03m

London

Mon 22/6

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

1 stop4h 17m

C$ 823

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Tue 16/6

9:55 a.m.-2:58 p.m.

1 stop4h 03m

London

Tue 23/6

5:10 a.m.-9:00 a.m.

1 stop4h 50m

C$ 825

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 23/5

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

1 stop10h 50m

London

Tue 26/5

6:10 a.m.-4:40 p.m.

1 stop11h 30m

C$ 831

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 23/5

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

1 stop10h 50m

London

Tue 26/5

6:10 a.m.-4:40 p.m.

1 stop11h 30m

C$ 864

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

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

1 stop6h 23m

London

Thu 28/5

9:30 a.m.-1:25 p.m.

1 stop4h 55m

C$ 913

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 23/5

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

1 stop6h 23m

London

Tue 26/5

12:20 p.m.-8:08 p.m.

2 stops8h 48m

C$ 924

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Tue 9/6

9:55 a.m.-2:58 p.m.

1 stop4h 03m

London

Wed 10/6

5:10 a.m.-2:50 p.m.

2 stops10h 40m

C$ 926

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 6/6

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

1 stop10h 50m

London

Fri 12/6

2:40 p.m.-5:07 a.m.

2 stops15h 27m

C$ 952

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

3:50 p.m.-9:38 p.m.

1 stop4h 48m

London

Thu 28/5

9:30 a.m.-8:08 p.m.

2 stops11h 38m

C$ 959

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Tue 16/6

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

1 stop6h 23m

London

Wed 17/6

3:30 p.m.-8:09 p.m.

1 stop5h 39m

C$ 993

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

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

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

Can stopping save me money on Illinois to London, Ontario flights?

You could potentially save up to 59% on your flight if you consider stops on a Illinois to London, Ontario flight.

Cheap Illinois to London, Ontario flight deals and tips

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

Fastest flight time	4h 03m
Direct flights	None

The fastest flight from Illinois to London, Ontario takes 4h 03m

There are no direct flights from Illinois to London, Ontario. There are no popular flight routes from Illinois to London, Ontario.

Search flight deals

Frequently asked questions about flying from Illinois to London, Ontario

When did momondo last update prices for flights from Illinois to London Airport?
Prices for flights from Illinois to London Airport are refreshed on a daily basis.
How old do you have to be to fly from Illinois to London Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to London Airport.
What documentation or ID do you need to fly to London Airport?
The required travel and health documents for your London Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Grand Bend

Port Stanley

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to London. momondo saves you time and could save you money on your trip.

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

Flights from Illinois to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to London.

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

Price alerts on flights to London from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.