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 Bellingham to Toronto Pearson Intl Airport is 6h 40m 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$ 259 Cheap Flights from Washington to London in 2025

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Find the cheapest flights from Washington to London

Round-trip

One-way

Last minute

Cheap round-trip flights

7:35 p.m. - 5:14 a.m.SEA-YXU

6h 39m1 stop

8:00 p.m. - 6:55 p.m.YXU-SEA

25h 55m1 stop

C$ 476WestJet

Find Deal

Mon, 25 Aug - Fri, 29 Aug

7:35 p.m. - 5:14 a.m.SEA-YXU

6h 39m1 stop

6:00 a.m. - 12:59 p.m.YXU-SEA

9h 59m1 stop

C$ 481WestJet

Find Deal

Tue, 26 Aug - Tue, 2 Sep

1:15 p.m. - 5:12 a.m.SEA-YXU

12h 57m2 stops

6:00 a.m. - 8:29 p.m.YXU-SEA

17h 29m1 stop

C$ 490WestJet

Find Deal

Fri, 12 Sep - Fri, 19 Sep

1:15 p.m. - 5:12 a.m.SEA-YXU

12h 57m2 stops

6:00 a.m. - 12:59 p.m.YXU-SEA

9h 59m1 stop

C$ 501WestJet

Find Deal

Fri, 26 Sep - Tue, 30 Sep

7:15 a.m. - 9:29 p.m.SEA-YXU

11h 14m2 stops

6:10 a.m. - 10:59 a.m.YXU-SEA

7h 49m1 stop

C$ 567Air Canada

Find Deal

Sun, 14 Sep - Sun, 21 Sep

7:15 p.m. - 9:19 a.m.SEA-YXU

11h 04m2 stops

3:50 p.m. - 9:22 a.m.YXU-SEA

20h 32m2 stops

C$ 583Air Canada

Find Deal

Sun, 14 Sep - Sun, 21 Sep

5:30 a.m. - 5:12 a.m.SEA-YXU

20h 42m3 stops

6:10 a.m. - 6:36 p.m.YXU-SEA

15h 26m2 stops

C$ 625

Find Deal

Sun, 14 Sep - Sun, 21 Sep

9:15 p.m. - 5:12 a.m.SEA-YXU

28h 57m1 stop

8:00 p.m. - 7:15 a.m.YXU-SEA

14h 15m1 stop

C$ 633

Find Deal

Sun, 14 Sep - Sun, 21 Sep

11:54 p.m. - 3:02 p.m.SEA-YXU

12h 08m2 stops

6:15 a.m. - 10:59 a.m.YXU-SEA

7h 44m1 stop

C$ 676United Airlines

Find Deal

Tue, 26 Aug - Tue, 2 Sep

4:55 p.m. - 5:07 p.m.SEA-YXU

21h 12m2 stops

9:55 a.m. - 8:42 p.m.YXU-SEA

13h 47m2 stops

C$ 697United Airlines

Find Deal

Tue, 26 Aug - Tue, 2 Sep

WestJet flights from State of Washington to London, Ontario

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

WestJet

25 Aug

SEA7:35 p.m.Seattle/Tacoma Intl

6h 39m

1 stop

YXU5:14 a.m.London

29 Aug

YXU8:00 p.m.London

25h 55m

1 stop

SEA6:55 p.m.Seattle/Tacoma Intl

C$ 476

Find similar

WestJet

26 Aug

SEA7:35 p.m.Seattle/Tacoma Intl

6h 39m

1 stop

YXU5:14 a.m.London

2 Sep

YXU6:00 a.m.London

9h 59m

1 stop

SEA12:59 p.m.Seattle/Tacoma Intl

C$ 481

Find similar

WestJet

12 Sep

SEA1:15 p.m.Seattle/Tacoma Intl

12h 57m

2 stops

YXU5:12 a.m.London

19 Sep

YXU6:00 a.m.London

17h 29m

1 stop

SEA8:29 p.m.Seattle/Tacoma Intl

C$ 490

Find similar

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

26 Aug

SEA11:54 p.m.Seattle/Tacoma Intl

12h 08m

2 stops

YXU3:02 p.m.London

2 Sep

YXU6:15 a.m.London

7h 44m

1 stop

SEA10:59 a.m.Seattle/Tacoma Intl

C$ 676

Find similar

United Airlines

26 Aug

SEA4:55 p.m.Seattle/Tacoma Intl

21h 12m

2 stops

YXU5:07 p.m.London

2 Sep

YXU9:55 a.m.London

13h 47m

2 stops

SEA8:42 p.m.Seattle/Tacoma Intl

C$ 697

Find similar

United Airlines

26 Aug

SEA11:54 p.m.Seattle/Tacoma Intl

12h 08m

2 stops

YXU3:02 p.m.London

2 Sep

YXU9:55 a.m.London

15h 57m

3 stops

SEA10:52 p.m.Seattle/Tacoma Intl

C$ 979

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

Mon 25/8

7:35 p.m.-5:14 a.m.

1 stop6h 39m

London

Fri 29/8

8:00 p.m.-6:55 p.m.

1 stop25h 55m

C$ 476

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 26/8

7:35 p.m.-5:14 a.m.

1 stop6h 39m

London

Tue 2/9

6:00 a.m.-12:59 p.m.

1 stop9h 59m

C$ 481

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 12/9

1:15 p.m.-5:12 a.m.

2 stops12h 57m

London

Fri 19/9

6:00 a.m.-8:29 p.m.

1 stop17h 29m

C$ 490

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Fri 26/9

1:15 p.m.-5:12 a.m.

2 stops12h 57m

London

Tue 30/9

6:00 a.m.-12:59 p.m.

1 stop9h 59m

C$ 501

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 14/9

7:15 a.m.-9:29 p.m.

2 stops11h 14m

London

Sun 21/9

6:10 a.m.-10:59 a.m.

1 stop7h 49m

C$ 567

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 14/9

7:15 p.m.-9:19 a.m.

2 stops11h 04m

London

Sun 21/9

3:50 p.m.-9:22 a.m.

2 stops20h 32m

C$ 583

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 14/9

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

3 stops20h 42m

London

Sun 21/9

6:10 a.m.-6:36 p.m.

2 stops15h 26m

C$ 625

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Sun 14/9

9:15 p.m.-5:12 a.m.

1 stop28h 57m

London

Sun 21/9

8:00 p.m.-7:15 a.m.

1 stop14h 15m

C$ 633

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 26/8

11:54 p.m.-3:02 p.m.

2 stops12h 08m

London

Tue 2/9

6:15 a.m.-10:59 a.m.

1 stop7h 44m

C$ 676

SeattleLondon

SEA - YXU

SEAYXU

Seattle/Tacoma Intl

Tue 26/8

4:55 p.m.-5:07 p.m.

2 stops21h 12m

London

Tue 2/9

9:55 a.m.-8:42 p.m.

2 stops13h 47m

C$ 697

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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, Air Canada, and United Airlines 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 43% 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

Best price found	C$ 259
Fastest flight time	6h 39m
Direct flights	None
Airports in London, Ontario	1 airport

The best one-way flight to London, Ontario from State of Washington in the past 72 hours is C$ 259. The best round-trip flight deal from State of Washington to London, Ontario found on momondo in the last 72 hours is C$ 476.

The fastest flight from State of Washington to London, Ontario takes 6h 39m

There are no direct flights from State of Washington to London, Ontario. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - London Airport.

There is 1 airport near London, Ontario: London (YXU)

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.