How long does it take to fly to London, Ontario?

The average flight duration from State of Washington to London, Ontario depends on which airport you fly into and out of. Flying from Seattle to Toronto Pearson Intl Airport is 4h 32m on average, while flying from Spokane to Toronto Pearson Intl Airport is 6h 42m on average. Toronto Pearson Intl Airport is the most popular airport in London, Ontario.

Which airlines fly to London, Ontario?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to London, Ontario from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 50% 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.

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

Delta and Air Canada are the most popular carriers operating from Washington to London

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

Prices for flights from Washington to London Airport refresh daily.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to London Airport.

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

The necessary travel and health documents for your London Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

C$ 314 Cheap Flights from Washington to London, Ontario in 2026/27

Find the cheapest flights from Washington to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 a.m. - 6:45 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

C$ 587WestJet

Tue, 20 Oct - Sat, 24 Oct

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

7:40 a.m. - 6:31 p.m.YXU London-SEA Seattle/Tacoma Intl

13h 51m2 stops Calgary Vancouver Intl

C$ 707Multiple Airlines

Thu, 22 Oct - Wed, 28 Oct

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 a.m. - 6:45 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

C$ 730WestJet

Tue, 20 Oct - Sat, 24 Oct

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 a.m. - 6:45 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

C$ 731WestJet

Tue, 20 Oct - Sat, 24 Oct

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

7:40 a.m. - 7:49 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 09m1 stop Calgary

C$ 752Multiple Airlines

Thu, 22 Oct - Wed, 28 Oct

2:30 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

12h 05m1 stop Calgary

6:40 a.m. - 1:40 p.m.YXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

C$ 823WestJet

Sun, 27 Dec - Tue, 5 Jan

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 a.m. - 5:00 p.m.YXU London-SEA Seattle/Tacoma Intl

13h 50m2 stops Calgary Vancouver Intl

C$ 871WestJet

Tue, 20 Oct - Sat, 24 Oct

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 a.m. - 6:45 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

C$ 917WestJet

Tue, 20 Oct - Sat, 24 Oct

7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 a.m. - 6:45 p.m.YXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

C$ 932WestJet

Tue, 20 Oct - Sat, 24 Oct

2:30 p.m. - 5:35 a.m.SEA Seattle/Tacoma Intl-YXU London

12h 05m1 stop Calgary

6:40 a.m. - 2:41 p.m.YXU London-SEA Seattle/Tacoma Intl

11h 01m2 stops Calgary Vancouver Intl

C$ 967Multiple Airlines

Sun, 27 Dec - Tue, 5 Jan

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United Airlines flights from State of Washington to London, Ontario

Our best United Airlines deals on State of Washington to London, Ontario flight tickets

United Airlines

20 Oct

SEA7:25 p.m.Seattle/Tacoma Intl

21h 15m

2 stops

YXU7:40 p.m.London

24 Oct

YXU3:30 p.m.London

9h 09m

1 stop

SEA9:39 p.m.Seattle/Tacoma Intl

C$ 1,181

United Airlines

20 Oct

SEA7:25 p.m.Seattle/Tacoma Intl

21h 15m

2 stops

YXU7:40 p.m.London

24 Oct

YXU3:30 p.m.London

9h 09m

1 stop

SEA9:39 p.m.Seattle/Tacoma Intl

C$ 1,190

United Airlines

20 Oct

SEA7:25 p.m.Seattle/Tacoma Intl

21h 15m

2 stops

YXU7:40 p.m.London

24 Oct

YXU9:05 a.m.London

12h 47m

2 stops

SEA6:52 p.m.Seattle/Tacoma Intl

C$ 1,204

Air Canada flights from State of Washington to London, Ontario

Our best Air Canada deals on State of Washington to London, Ontario flight tickets

Air Canada

27 Dec

SEA7:05 p.m.Seattle/Tacoma Intl

10h 32m

2 stops

YXU8:37 a.m.London

5 Jan

YXU5:30 a.m.London

12h 07m

2 stops

SEA2:37 p.m.Seattle/Tacoma Intl

C$ 1,192

Air Canada

20 Oct

SEA7:55 a.m.Seattle/Tacoma Intl

8h 45m

1 stop

YXU7:40 p.m.London

24 Oct

YXU9:05 a.m.London

12h 27m

2 stops

SEA6:32 p.m.Seattle/Tacoma Intl

C$ 1,253

Air Canada

20 Oct

SEA7:15 p.m.Seattle/Tacoma Intl

10h 10m

2 stops

YXU8:25 a.m.London

24 Oct

YXU9:05 a.m.London

12h 27m

2 stops

SEA6:32 p.m.Seattle/Tacoma Intl

C$ 1,260

momondo Fare Finder

Use the filters below to find and compare flights from Washington to London, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

London

Sat 24/10

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

1 stop15h 35m

C$ 587

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Thu 22/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

London

Wed 28/10

7:40 a.m.-6:31 p.m.

2 stops13h 51m

C$ 707

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

London

Sat 24/10

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

1 stop15h 35m

C$ 730

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

London

Sat 24/10

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

1 stop15h 35m

C$ 731

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Thu 22/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

London

Wed 28/10

7:40 a.m.-7:49 p.m.

1 stop15h 09m

C$ 752

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Sun 27/12

2:30 p.m.-5:35 a.m.

1 stop12h 05m

London

Tue 5/1

6:40 a.m.-1:40 p.m.

1 stop10h 00m

C$ 823

Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

London

Sat 24/10

6:10 a.m.-5:00 p.m.

2 stops13h 50m

C$ 871

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

London

Sat 24/10

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

1 stop15h 35m

C$ 917

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-5:20 a.m.

1 stop6h 45m

London

Sat 24/10

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

1 stop15h 35m

C$ 932

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Sun 27/12

2:30 p.m.-5:35 a.m.

1 stop12h 05m

London

Tue 5/1

6:40 a.m.-2:41 p.m.

2 stops11h 01m

C$ 967

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington 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

Other information

Can stopping save me money on State of Washington to London, Ontario flights?

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

Cheap State of Washington to London, Ontario flight deals and tips

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

Best price found	C$ 314
Fastest flight time	6h 45m
Direct flights	None

The best one-way flight to London, Ontario from State of Washington in the past 72 hours is C$ 314. The best round-trip flight deal from State of Washington to London, Ontario found on momondo in the last 72 hours is C$ 587.

The fastest flight from State of Washington to London, Ontario takes 6h 45m

There are no direct flights from State of Washington to London, Ontario. There are no popular flight routes from State of Washington to London, Ontario.

Search flight deals

Frequently asked questions about flying from Washington to London, Ontario

When did momondo last update prices for flights from Washington to London Airport?
Prices for flights from Washington to London Airport refresh daily.
How old do you have to be to fly from Washington to London Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to London Airport.
What documentation or ID do you need to fly to London Airport?
The necessary travel and health documents for your London Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Grand Bend

Port Stanley

Why use momondo?

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

Finding the right flight to London from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Washington to London flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Washington.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Washington and alert you when they change.