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

Air Canada is the most popular carrier operating from Illinois to London

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$ 298 Cheap Flights from Illinois to London 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.

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

6:15 a.m. - 4:40 p.m.

YXU

ORD

11h 25m

1 stop

C$ 395WestJet

Mon, 25 May - Thu, 28 May

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

6:15 a.m. - 4:40 p.m.

YXU

ORD

11h 25m

1 stop

C$ 455WestJet

Mon, 25 May - Thu, 28 May

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

5:55 p.m. - 4:40 p.m.

YXU

ORD

23h 45m

1 stop

C$ 552WestJet

Sat, 23 May - Tue, 26 May

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

5:55 p.m. - 6:40 p.m.

YXU

ORD

25h 45m

2 stops

C$ 660Multiple Airlines

Thu, 7 May - Tue, 12 May

2:20 p.m. - 6:35 a.m.

ORD

YXU

15h 15m

1 stop

8:10 p.m. - 6:33 p.m.

YXU

ORD

23h 23m

2 stops

C$ 691Multiple Airlines

Mon, 23 Mar - Mon, 30 Mar

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

ORD

YXU

4h 48m

1 stop

12:20 p.m. - 4:59 p.m.

YXU

ORD

5h 39m

1 stop

C$ 771Air Canada

Sat, 23 May - Tue, 26 May

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

ORD

YXU

6h 23m

1 stop

12:20 p.m. - 4:59 p.m.

YXU

ORD

5h 39m

1 stop

C$ 773Air Canada

Thu, 7 May - Tue, 12 May

5:30 p.m. - 5:25 a.m.

ORD

YXU

10h 55m

1 stop

5:55 p.m. - 6:15 p.m.

YXU

ORD

25h 20m

3 stops

C$ 774Multiple Airlines

Thu, 7 May - Tue, 12 May

7:41 a.m. - 9:21 p.m.

STL

YXU

12h 40m

2 stops

9:40 a.m. - 10:59 p.m.

YXU

STL

14h 19m

2 stops

C$ 1,270United Airlines

Mon, 2 Mar - Wed, 4 Mar

7:41 a.m. - 9:21 p.m.

STL

YXU

12h 40m

2 stops

5:10 a.m. - 4:02 p.m.

YXU

STL

11h 52m

2 stops

C$ 1,361United Airlines

Mon, 2 Mar - Wed, 4 Mar

Air Canada flights from Illinois to London, Ontario

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

Air Canada

23 May

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

4h 48m

1 stop

YXU9:38 p.m.London

26 May

YXU12:20 p.m.London

5h 39m

1 stop

ORD4:59 p.m.Chicago O'Hare Intl

C$ 771

Air Canada

7 May

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

6h 23m

1 stop

YXU9:38 p.m.London

12 May

YXU12:20 p.m.London

5h 39m

1 stop

ORD4:59 p.m.Chicago O'Hare Intl

C$ 773

Air Canada

23 May

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

4h 48m

1 stop

YXU9:38 p.m.London

26 May

YXU12:20 p.m.London

8h 48m

2 stops

ORD8:08 p.m.Chicago O'Hare Intl

C$ 784

United Airlines flights from Illinois to London, Ontario

Our best United Airlines deals on Illinois to London, Ontario flight tickets

United Airlines

24 Mar

ORD10:00 a.m.Chicago O'Hare Intl

6h 05m

1 stop

YXU5:05 p.m.London

31 Mar

YXU5:10 a.m.London

5h 00m

1 stop

ORD9:10 a.m.Chicago O'Hare Intl

C$ 875

United Airlines

24 Mar

ORD12:03 p.m.Chicago O'Hare Intl

8h 18m

2 stops

YXU9:21 p.m.London

31 Mar

YXU9:40 a.m.London

6h 35m

1 stop

ORD3:15 p.m.Chicago O'Hare Intl

C$ 887

United Airlines

24 Mar

ORD10:50 a.m.Chicago O'Hare Intl

9h 31m

2 stops

YXU9:21 p.m.London

31 Mar

YXU5:10 a.m.London

9h 05m

2 stops

ORD1:15 p.m.Chicago O'Hare Intl

C$ 909

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Thu 28/5

6:15 a.m.-4:40 p.m.

1 stop11h 25m

C$ 395

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 25/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Thu 28/5

6:15 a.m.-4:40 p.m.

1 stop11h 25m

C$ 455

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 23/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Tue 26/5

5:55 p.m.-4:40 p.m.

1 stop23h 45m

C$ 552

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 7/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Tue 12/5

5:55 p.m.-6:40 p.m.

2 stops25h 45m

C$ 660

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Mon 23/3

2:20 p.m.-6:35 a.m.

1 stop15h 15m

London

Mon 30/3

8:10 p.m.-6:33 p.m.

2 stops23h 23m

C$ 691

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Sat 23/5

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

1 stop4h 48m

London

Tue 26/5

12:20 p.m.-4:59 p.m.

1 stop5h 39m

C$ 771

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 7/5

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

1 stop6h 23m

London

Tue 12/5

12:20 p.m.-4:59 p.m.

1 stop5h 39m

C$ 773

ChicagoLondon

ORD - YXU

ORDYXU

Chicago O'Hare Intl

Thu 7/5

5:30 p.m.-5:25 a.m.

1 stop10h 55m

London

Tue 12/5

5:55 p.m.-6:15 p.m.

3 stops25h 20m

C$ 774

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Mon 2/3

7:41 a.m.-9:21 p.m.

2 stops12h 40m

London

Wed 4/3

9:40 a.m.-10:59 p.m.

2 stops14h 19m

C$ 1,270

St. LouisLondon

STL - YXU

STLYXU

Lambert-St Louis

Mon 2/3

7:41 a.m.-9:21 p.m.

2 stops12h 40m

London

Wed 4/3

5:10 a.m.-4:02 p.m.

2 stops11h 52m

C$ 1,361

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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	6h 05m
Direct flights	None

The fastest flight from Illinois to London, Ontario takes 6h 05m

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

Search flight deals

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

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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.