What airlines fly to London, Ontario?

Alaska Airlines, WestJet and Air Canada 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 56% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 5 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

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

If you’re flying from a popular airport in State of Washington, such as Seattle or Spokane, and flying into London, Ontario, then you can expect flight times to average 4h 32m and 6h 42m, respectively.

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 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 Washington 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.

$222 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 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 am - 6:45 pmYXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

$415WestJet

Tue, Oct 20 - Sat, Oct 24

2:30 pm - 5:35 amSEA Seattle/Tacoma Intl-YXU London

12h 05m1 stop Calgary

6:40 am - 1:40 pmYXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

$426WestJet

Wed, Nov 11 - Wed, Nov 18

7:35 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 am - 6:45 pmYXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

$516WestJet

Tue, Oct 20 - Sat, Oct 24

7:35 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 am - 6:45 pmYXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

$517WestJet

Tue, Oct 20 - Sat, Oct 24

6:59 pm - 5:35 amSEA Seattle/Tacoma Intl-YXU London

31h 36m2 stops Las Vegas Harry Reid Intl Calgary

6:40 am - 1:40 pmYXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

$609Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

7:35 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 am - 5:00 pmYXU London-SEA Seattle/Tacoma Intl

13h 50m2 stops Calgary Vancouver Intl

$616WestJet

Tue, Oct 20 - Sat, Oct 24

2:30 pm - 5:35 amSEA Seattle/Tacoma Intl-YXU London

12h 05m1 stop Calgary

10:15 am - 9:45 amYXU London-SEA Seattle/Tacoma Intl

26h 30m3 stops Fort Lauderdale Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

$634Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

7:35 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

6:10 am - 6:45 pmYXU London-SEA Seattle/Tacoma Intl

15h 35m1 stop Calgary

$659WestJet

Tue, Oct 20 - Sat, Oct 24

7:35 pm - 5:20 amSEA Seattle/Tacoma Intl-YXU London

6h 45m1 stop Calgary

7:40 am - 2:40 pmYXU London-SEA Seattle/Tacoma Intl

10h 00m1 stop Calgary

$742WestJet

Sun, Oct 18 - Fri, Oct 30

7:25 pm - 7:40 pmSEA Seattle/Tacoma Intl-YXU London

21h 15m2 stops San Francisco Toronto Pearson Intl

3:30 pm - 9:39 pmYXU London-SEA Seattle/Tacoma Intl

9h 09m1 stop Toronto Pearson Intl

$841United Airlines

Tue, Oct 20 - Sat, Oct 24

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WestJet flights from State of Washington to London, Ontario

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

WestJet

Oct 11

SEA7:35 pmSeattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 amLondon

Nov 3

YXU6:40 amLondon

10h 00m

1 stop

SEA1:40 pmSeattle/Tacoma Intl

$363

WestJet

Oct 14

SEA7:35 pmSeattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 amLondon

Nov 3

YXU6:40 amLondon

10h 00m

1 stop

SEA1:40 pmSeattle/Tacoma Intl

$391

WestJet

Oct 20

SEA7:35 pmSeattle/Tacoma Intl

6h 45m

1 stop

YXU5:20 amLondon

Oct 24

YXU6:10 amLondon

15h 35m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

$415

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

Oct 12

SEA3:00 pmSeattle/Tacoma Intl

14h 25m

2 stops

YXU8:25 amLondon

Nov 6

YXU3:25 pmLondon

8h 34m

1 stop

SEA8:59 pmSeattle/Tacoma Intl

$971

Air Canada

Oct 11

SEA7:15 pmSeattle/Tacoma Intl

10h 10m

2 stops

YXU8:25 amLondon

Nov 8

YXU5:30 amLondon

15h 52m

2 stops

SEA6:22 pmSeattle/Tacoma Intl

$977

Air Canada

Oct 12

SEA7:55 amSeattle/Tacoma Intl

6h 48m

1 stop

YXU5:43 pmLondon

Nov 7

YXU5:30 amLondon

12h 07m

2 stops

SEA2:37 pmSeattle/Tacoma Intl

$990

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 10/20

7:35 pm-5:20 am

1 stop6h 45m

London

Sat 10/24

6:10 am-6:45 pm

1 stop15h 35m

$415

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Wed 11/11

2:30 pm-5:35 am

1 stop12h 05m

London

Wed 11/18

6:40 am-1:40 pm

1 stop10h 00m

$426

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 10/20

7:35 pm-5:20 am

1 stop6h 45m

London

Sat 10/24

6:10 am-6:45 pm

1 stop15h 35m

$516

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 10/20

7:35 pm-5:20 am

1 stop6h 45m

London

Sat 10/24

6:10 am-6:45 pm

1 stop15h 35m

$517

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Wed 11/11

6:59 pm-5:35 am

2 stops31h 36m

London

Wed 11/18

6:40 am-1:40 pm

1 stop10h 00m

$609

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 10/20

7:35 pm-5:20 am

1 stop6h 45m

London

Sat 10/24

6:10 am-5:00 pm

2 stops13h 50m

$616

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Wed 11/11

2:30 pm-5:35 am

1 stop12h 05m

London

Wed 11/18

10:15 am-9:45 am

3 stops26h 30m

$634

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 10/20

7:35 pm-5:20 am

1 stop6h 45m

London

Sat 10/24

6:10 am-6:45 pm

1 stop15h 35m

$659

Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Sun 10/18

7:35 pm-5:20 am

1 stop6h 45m

London

Fri 10/30

7:40 am-2:40 pm

1 stop10h 00m

$742

SeattleLondon

SEA Seattle/Tacoma Intl - YXU London

SEAYXU

Seattle/Tacoma Intl

Tue 10/20

7:25 pm-7:40 pm

2 stops21h 15m

London

Sat 10/24

3:30 pm-9:39 pm

1 stop9h 09m

$841

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 56% 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	$222
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 $222. The best round-trip flight deal from State of Washington to London, Ontario found on momondo in the last 72 hours is $415.

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 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 Washington 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 Washington to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to London for you.

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

Yes. All flights to London from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to London from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Washington to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Cheap flights from Washington to London from $222

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to London departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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WestJet flights from State of Washington to London, Ontario

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

Air Canada flights from State of Washington to London, Ontario

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

momondo Fare Finder

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

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How to get the cheapest flight ticket from State of Washington to London, Ontario

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

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

What airlines fly to London, Ontario?

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

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

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Frequently asked questions about flying from Washington to London, Ontario

Traveling to a place near London?

Why use momondo?

An easier way to manage your London, Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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