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 40m on average, while flying from Spokane to Toronto Pearson Intl Airport is 7h 43m on average. Toronto Pearson Intl Airport is the most popular airport in 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.

C$ 203 Cheap Flights from Washington to London in 2025/26

1 adult

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Find the cheapest flights from Washington to London

Round-trip

One-way

Cheap round-trip flights

3:10 p.m. - 7:12 p.m.SEA-YXU

25h 02m1 stop

8:10 p.m. - 10:23 a.m.YXU-SEA

17h 13m2 stops

C$ 467WestJet

Find Deal

Sun, 2 Nov - Sun, 9 Nov

8:15 a.m. - 9:21 p.m.SEA-YXU

10h 06m1 stop

5:40 p.m. - 10:16 p.m.YXU-SEA

7h 36m1 stop

C$ 558Air Canada

Find Deal

Fri, 31 Oct - Fri, 7 Nov

8:00 p.m. - 5:05 p.m.SEA-YXU

18h 05m2 stops

9:25 a.m. - 7:16 p.m.YXU-SEA

12h 51m2 stops

C$ 565Air Canada

Find Deal

Fri, 31 Oct - Fri, 7 Nov

3:10 p.m. - 7:12 p.m.SEA-YXU

25h 02m1 stop

8:10 p.m. - 2:20 p.m.YXU-SEA

21h 10m1 stop

C$ 605WestJet

Find Deal

Sun, 2 Nov - Sun, 9 Nov

11:55 a.m. - 7:12 p.m.SEA-YXU

28h 17m2 stops

8:10 p.m. - 10:23 a.m.YXU-SEA

17h 13m2 stops

C$ 687WestJet

Find Deal

Sun, 2 Nov - Sun, 9 Nov

11:55 a.m. - 7:12 p.m.SEA-YXU

28h 17m3 stops

8:10 p.m. - 10:23 a.m.YXU-SEA

17h 13m2 stops

C$ 702WestJet

Find Deal

Sun, 2 Nov - Sun, 9 Nov

10:55 p.m. - 7:12 p.m.SEA-YXU

17h 17m3 stops

8:10 p.m. - 10:23 a.m.YXU-SEA

17h 13m3 stops

C$ 831WestJet

Find Deal

Sun, 2 Nov - Sun, 9 Nov

8:00 p.m. - 8:46 a.m.SEA-YXU

9h 46m2 stops

5:40 p.m. - 10:16 p.m.YXU-SEA

7h 36m1 stop

C$ 834Air Canada

Find Deal

Mon, 22 Dec - Mon, 29 Dec

8:10 a.m. - 9:21 p.m.SEA-YXU

10h 11m1 stop

5:40 p.m. - 10:16 p.m.YXU-SEA

7h 36m1 stop

C$ 860Air Canada

Find Deal

Mon, 22 Dec - Mon, 29 Dec

5:02 a.m. - 9:21 p.m.SEA-YXU

13h 19m2 stops

5:45 a.m. - 9:17 p.m.YXU-SEA

18h 32m3 stops

C$ 2,050United Airlines

Find Deal

Mon, 22 Dec - Mon, 29 Dec

WestJet flights from State of Washington to London, Ontario

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

WestJet

2 Nov

SEA3:10 p.m.Seattle/Tacoma Intl

25h 02m

1 stop

YXU7:12 p.m.London

9 Nov

YXU8:10 p.m.London

17h 13m

2 stops

SEA10:23 a.m.Seattle/Tacoma Intl

C$ 467

Find similar

WestJet

2 Nov

SEA3:10 p.m.Seattle/Tacoma Intl

25h 02m

1 stop

YXU7:12 p.m.London

9 Nov

YXU8:10 p.m.London

21h 10m

1 stop

SEA2:20 p.m.Seattle/Tacoma Intl

C$ 605

Find similar

WestJet

2 Nov

SEA11:55 a.m.Seattle/Tacoma Intl

28h 17m

2 stops

YXU7:12 p.m.London

9 Nov

YXU8:10 p.m.London

17h 13m

2 stops

SEA10:23 a.m.Seattle/Tacoma Intl

C$ 687

Find similar

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

31 Oct

SEA8:15 a.m.Seattle/Tacoma Intl

10h 06m

1 stop

YXU9:21 p.m.London

7 Nov

YXU5:40 p.m.London

7h 36m

1 stop

SEA10:16 p.m.Seattle/Tacoma Intl

C$ 558

Find similar

Air Canada

31 Oct

SEA8:00 p.m.Seattle/Tacoma Intl

18h 05m

2 stops

YXU5:05 p.m.London

7 Nov

YXU9:25 a.m.London

12h 51m

2 stops

SEA7:16 p.m.Seattle/Tacoma Intl

C$ 565

Find similar

Air Canada

22 Dec

SEA8:00 p.m.Seattle/Tacoma Intl

9h 46m

2 stops

YXU8:46 a.m.London

29 Dec

YXU5:40 p.m.London

7h 36m

1 stop

SEA10:16 p.m.Seattle/Tacoma Intl

C$ 834

Find similar

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

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 2/11

3:10 p.m.-7:12 p.m.

1 stop25h 02m

London

Sun 9/11

8:10 p.m.-10:23 a.m.

2 stops17h 13m

C$ 467

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 31/10

8:15 a.m.-9:21 p.m.

1 stop10h 06m

London

Fri 7/11

5:40 p.m.-10:16 p.m.

1 stop7h 36m

C$ 558

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 31/10

8:00 p.m.-5:05 p.m.

2 stops18h 05m

London

Fri 7/11

9:25 a.m.-7:16 p.m.

2 stops12h 51m

C$ 565

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 2/11

3:10 p.m.-7:12 p.m.

1 stop25h 02m

London

Sun 9/11

8:10 p.m.-2:20 p.m.

1 stop21h 10m

C$ 605

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 2/11

11:55 a.m.-7:12 p.m.

2 stops28h 17m

London

Sun 9/11

8:10 p.m.-10:23 a.m.

2 stops17h 13m

C$ 687

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 2/11

11:55 a.m.-7:12 p.m.

3 stops28h 17m

London

Sun 9/11

8:10 p.m.-10:23 a.m.

2 stops17h 13m

C$ 702

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 2/11

10:55 p.m.-7:12 p.m.

3 stops17h 17m

London

Sun 9/11

8:10 p.m.-10:23 a.m.

3 stops17h 13m

C$ 831

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Mon 22/12

8:00 p.m.-8:46 a.m.

2 stops9h 46m

London

Mon 29/12

5:40 p.m.-10:16 p.m.

1 stop7h 36m

C$ 834

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Mon 22/12

8:10 a.m.-9:21 p.m.

1 stop10h 11m

London

Mon 29/12

5:40 p.m.-10:16 p.m.

1 stop7h 36m

C$ 860

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Mon 22/12

5:02 a.m.-9:21 p.m.

2 stops13h 19m

London

Mon 29/12

5:45 a.m.-9:17 p.m.

3 stops18h 32m

C$ 2,050

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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

Airlines

Other information

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

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

Which airlines fly to London, Ontario?

Alaska Airlines, Air Canada and United Airlines 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 40% of people opting to fly with this airline when travelling to London, Ontario. Keep in mind that there are 4 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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

Direct flights	None

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

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.