Which airport is the most popular layover for flights between Toronto Pearson Intl Airport and Seattle?

Calgary (YYC) was the most common stop: 65% of momondo users choosing one-stop flights on this route connected there.

What is the most punctual flight time for Toronto to Seattle flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on Toronto to Seattle flights?

According to our data, EVA Air has had the lowest number of delays on this route over the last 12 months, with no flights being classified as delayed.

How often are flights from Toronto to Seattle delayed?

Historically, on average around 18% of flights between Toronto and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 159 minutes.

How many flights depart from Toronto Pearson Intl Airport to Seattle on average per day?

The number of flights available between Toronto Pearson Intl Airport and Seattle is 4 per day as of October 2025. The most frequent departure time is 4:00p.m., with 53% of daily flights leaving in the afternoon.

Which layover airport offers the lowest fares from Toronto Pearson Intl Airport to Seattle?

Flights via Montreal (YUL) offer the lowest average round-trip price of C$ 490.

How many flights depart from Toronto Pearson Intl Airport to Seattle on average per week?

The number of flights available between Toronto Pearson Intl Airport and Seattle is 29 per week as of October 2025. The most frequent departure day is Tue, with 24% of weekly flights leaving on this day.

Which layover airport has the shortest connection time from Toronto Pearson Intl Airport to Seattle?

Vancouver (YVR) has the shortest average layover time for this route: 1h 48m.

Which layover airport has the shortest travel time from Toronto Pearson Intl Airport to Seattle?

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 8h 07m.

What is the cheapest airline that flies from Toronto Pearson Intl to Seattle/Tacoma Intl?

WestJet, Air Canada, and Delta are the most popular carriers operating from Toronto Pearson Intl to Seattle/Tacoma Intl

Which airlines fly to Seattle?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Seattle from Toronto Pearson Intl Airport according to our data. Alaska Airlines is the first choice among our users, with 41% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

When did momondo last update prices for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 215 Cheap Flights from Toronto Pearson Intl Airport to Seattle in 2025/26

Q: What is the typical price of a round-trip flight between Toronto Pearson Intl Airport and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from C$ 364 to C$ 673. The lowest price recently found on this route was C$ 302.

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Find the cheapest flights from Toronto Pearson Intl Airport to Seattle

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One-way

Last minute

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Enter your travel dates to find the best prices.

7:45 a.m. - 2:20 p.m.YYZ-SEA

9h 35m1 stop

3:20 p.m. - 5:58 a.m.SEA-YYZ

11h 38m2 stops

C$ 302WestJet

Find Deal

Mon, 24 Nov - Sat, 29 Nov

7:45 a.m. - 2:20 p.m.YYZ-SEA

9h 35m1 stop

3:10 p.m. - 5:58 a.m.SEA-YYZ

11h 48m2 stops

C$ 310WestJet

Find Deal

Thu, 4 Dec - Thu, 11 Dec

7:45 a.m. - 2:20 p.m.YYZ-SEA

9h 35m1 stop

3:10 p.m. - 5:58 a.m.SEA-YYZ

11h 48m2 stops

C$ 311WestJet

Find Deal

Fri, 5 Dec - Fri, 12 Dec

7:45 a.m. - 2:20 p.m.YYZ-SEA

9h 35m1 stop

7:55 a.m. - 3:35 p.m.SEA-YYZ

4h 40mdirect

C$ 334Multiple Airlines

Find Deal

Fri, 14 Nov - Wed, 19 Nov

7:50 p.m. - 10:16 p.m.YYZ-SEA

5h 26mdirect

10:05 a.m. - 10:41 p.m.SEA-YYZ

9h 36m2 stops

C$ 339Air Canada

Find Deal

Sat, 22 Nov - Sat, 29 Nov

7:45 a.m. - 2:19 p.m.YYZ-SEA

9h 34m1 stop

8:00 a.m. - 3:35 p.m.SEA-YYZ

4h 35mdirect

C$ 341Multiple Airlines

Find Deal

Wed, 18 Feb - Wed, 25 Feb

8:15 a.m. - 2:31 p.m.YYZ-SEA

9h 16m2 stops

8:10 a.m. - 3:53 p.m.SEA-YYZ

4h 43mdirect

C$ 346Air Canada

Find Deal

Sat, 22 Nov - Sat, 29 Nov

4:45 p.m. - 7:05 p.m.YYZ-SEA

5h 20mdirect

7:57 a.m. - 3:35 p.m.SEA-YYZ

4h 38mdirect

C$ 356Alaska Airlines

Find Deal

Thu, 20 Nov - Mon, 24 Nov

4:45 p.m. - 7:05 p.m.YYZ-SEA

5h 20mdirect

7:57 a.m. - 3:35 p.m.SEA-YYZ

4h 38mdirect

C$ 359Alaska Airlines

Find Deal

Tue, 18 Nov - Tue, 25 Nov

6:09 p.m. - 10:03 p.m.YYZ-SEA

6h 54m1 stop

7:20 a.m. - 10:50 p.m.SEA-YYZ

12h 30m1 stop

C$ 380Delta

Find Deal

Sat, 8 Nov - Sat, 15 Nov

WestJet flights from Toronto Pearson Intl Airport to Seattle

Our best WestJet deals on Toronto Pearson Intl Airport to Seattle flight tickets

WestJet

24 Nov

YYZ7:45 a.m.Toronto Pearson Intl

9h 35m

1 stop

SEA2:20 p.m.Seattle/Tacoma Intl

29 Nov

SEA3:20 p.m.Seattle/Tacoma Intl

11h 38m

2 stops

YYZ5:58 a.m.Toronto Pearson Intl

C$ 302

Find similar

WestJet

4 Dec

YYZ7:45 a.m.Toronto Pearson Intl

9h 35m

1 stop

SEA2:20 p.m.Seattle/Tacoma Intl

11 Dec

SEA3:10 p.m.Seattle/Tacoma Intl

11h 48m

2 stops

YYZ5:58 a.m.Toronto Pearson Intl

C$ 310

Find similar

WestJet

5 Dec

YYZ7:45 a.m.Toronto Pearson Intl

9h 35m

1 stop

SEA2:20 p.m.Seattle/Tacoma Intl

12 Dec

SEA3:10 p.m.Seattle/Tacoma Intl

11h 48m

2 stops

YYZ5:58 a.m.Toronto Pearson Intl

C$ 311

Find similar

Alaska Airlines flights from Toronto Pearson Intl Airport to Seattle

Our best Alaska Airlines deals on Toronto Pearson Intl Airport to Seattle flight tickets

Alaska Airlines

20 Nov

YYZ4:45 p.m.Toronto Pearson Intl

5h 20m

SEA7:05 p.m.Seattle/Tacoma Intl

24 Nov

SEA7:57 a.m.Seattle/Tacoma Intl

4h 38m

YYZ3:35 p.m.Toronto Pearson Intl

C$ 356

Find similar

Alaska Airlines

18 Nov

YYZ4:45 p.m.Toronto Pearson Intl

5h 20m

SEA7:05 p.m.Seattle/Tacoma Intl

25 Nov

SEA7:57 a.m.Seattle/Tacoma Intl

4h 38m

YYZ3:35 p.m.Toronto Pearson Intl

C$ 359

Find similar

Alaska Airlines

17 Nov

YYZ4:45 p.m.Toronto Pearson Intl

5h 20m

SEA7:05 p.m.Seattle/Tacoma Intl

24 Nov

SEA7:57 a.m.Seattle/Tacoma Intl

4h 38m

YYZ3:35 p.m.Toronto Pearson Intl

C$ 382

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Toronto Pearson Intl Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Mon 24/11

7:45 a.m.-2:20 p.m.

1 stop9h 35m

Seattle/Tacoma Intl

Sat 29/11

3:20 p.m.-5:58 a.m.

2 stops11h 38m

C$ 302

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 4/12

7:45 a.m.-2:20 p.m.

1 stop9h 35m

Seattle/Tacoma Intl

Thu 11/12

3:10 p.m.-5:58 a.m.

2 stops11h 48m

C$ 310

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 5/12

7:45 a.m.-2:20 p.m.

1 stop9h 35m

Seattle/Tacoma Intl

Fri 12/12

3:10 p.m.-5:58 a.m.

2 stops11h 48m

C$ 311

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 14/11

7:45 a.m.-2:20 p.m.

1 stop9h 35m

Seattle/Tacoma Intl

Wed 19/11

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 334

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 22/11

7:50 p.m.-10:16 p.m.

Nonstop5h 26m

Seattle/Tacoma Intl

Sat 29/11

10:05 a.m.-10:41 p.m.

2 stops9h 36m

C$ 339

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Wed 18/2

7:45 a.m.-2:19 p.m.

1 stop9h 34m

Seattle/Tacoma Intl

Wed 25/2

8:00 a.m.-3:35 p.m.

Nonstop4h 35m

C$ 341

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 22/11

8:15 a.m.-2:31 p.m.

2 stops9h 16m

Seattle/Tacoma Intl

Sat 29/11

8:10 a.m.-3:53 p.m.

Nonstop4h 43m

C$ 346

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 20/11

4:45 p.m.-7:05 p.m.

Nonstop5h 20m

Seattle/Tacoma Intl

Mon 24/11

7:57 a.m.-3:35 p.m.

Nonstop4h 38m

C$ 356

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 18/11

4:45 p.m.-7:05 p.m.

Nonstop5h 20m

Seattle/Tacoma Intl

Tue 25/11

7:57 a.m.-3:35 p.m.

Nonstop4h 38m

C$ 359

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 8/11

6:09 p.m.-10:03 p.m.

1 stop6h 54m

Seattle/Tacoma Intl

Sat 15/11

7:20 a.m.-10:50 p.m.

1 stop12h 30m

C$ 380

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Toronto Pearson Intl Airport to Seattle

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

Delays

Layovers

Other information

What is the typical price of a round-trip flight between Toronto Pearson Intl Airport and Seattle?

What is the cheapest month to fly to Seattle?

If you aren’t able to travel to Seattle during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 383.

What is the cheapest day to depart on your flight to Seattle?

Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 565. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 789. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

What is the cheapest time of day to depart on your flight to Seattle?

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Toronto Pearson Intl Airport to Seattle during this time can be as low as C$ 444. Flights in the morning are often more expensive with an average ticket price of C$ 850.

What is the cheapest Toronto Pearson Intl to Seattle/Tacoma Intl flight route?

Fly from Toronto Pearson Intl to Seattle/Tacoma Intl for the best Toronto Pearson Intl - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Toronto Pearson Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 500 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Toronto Pearson Intl Airport for as low as C$ 435 on momondo.

What cabin class options are available on Toronto Pearson Intl to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Toronto Pearson Intl to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Toronto Pearson Intl Airport to Seattle flight prices changed over time?

As of October 2025, prices for Toronto Pearson Intl Airport to Seattle flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from Toronto Pearson Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Toronto Pearson Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Toronto Pearson Intl Airport to Seattle (YYZ to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Toronto Pearson Intl Airport to Seattle

Best price found	C$ 316
Fastest flight time	5h 20m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Toronto Pearson Intl Airport in the past 72 hours is C$ 316. The best round-trip flight deal from Toronto Pearson Intl Airport to Seattle found on momondo in the last 72 hours is C$ 356.

The fastest flight from Toronto Pearson Intl Airport to Seattle takes 5h 20m

Direct flights go from Toronto Pearson Intl Airport to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

How far is Toronto Pearson Intl to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 3304.6 km away from Toronto Pearson Intl. A reasonable flight in good conditions will take 5h 20m.
When did momondo last update prices for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?
There are 6 operators available for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport as of October 2025.
How old do you have to be to fly from Toronto Pearson Intl Airport to Seattle/Tacoma Intl 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 Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Toronto Pearson Intl Airport to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Toronto Pearson Intl Airport to Seattle is Airbus A220-300, representing 36.15% of all bookings. The subsequent popular models are Airbus A320-100/200 at 20.91%, Boeing 737 MAX 8 at 16.46%, and Boeing 737-900 Passenger/BBJ3 (winglets) at 4.89%.
What is the most popular airline from Toronto Pearson Intl Airport to Seattle?
Based on momondo bookings for flights between Toronto Pearson Intl Airport and Seattle, the leading airline is Alaska Airlines, making up 38% of the total bookings. Other popular airlines include Air Canada with 31%, WestJet with 17%, and United Airlines with 7%.

Best airlines flying from Toronto Pearson Intl Airport to Seattle

Compare and see reviews for airlines that fly from Toronto Pearson Intl Airport to Seattle with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom C$ 286	Free Cancellation	Rating 7.2 3,129 reviews	Search WestJet flights
Alaska Airlines	PriceFrom C$ 302	Free Cancellation	Rating 8.0 11,137 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom C$ 346	Free Cancellation	Rating 7.1 10,337 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 368	Free Cancellation	Rating 7.4 8,989 reviews	Search United Airlines flights
Delta	PriceFrom C$ 379	Free Cancellation	Rating 7.9 7,978 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom C$ 417	Free Cancellation	Rating 7.8 2,786 reviews	Search Hawaiian Airlines flights

Alaska Airlines Flights From Toronto Pearson Intl Airport to Seattle
Alaska Airlines flies from Toronto Pearson Intl Airport to Seattle around 5 times per week, with 11,137 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Toronto Pearson Intl Airport to Seattle in the last 72 hours was C$ 302 (round-trip), much lower than the average airfare cost of C$ 520 for Alaska Airlines flights on this route.
Hawaiian Airlines Flights From Toronto Pearson Intl Airport to Seattle
Hawaiian Airlines is also a popular choice for this route. Hawaiian Airlines flight deals for Toronto Pearson Intl Airport to Seattle start from as low as C$ 417 round-trip, depending on your selected dates, with average Hawaiian Airlines deals seen on momondo around C$ 471. Hawaiian Airlines operates 5 flights to Seattle from Toronto Pearson Intl Airport in an average week. Users have rated it 7.8/10 across 2,786 reviews.

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Marysville

Tacoma

SeaTac

Kirkland

Olympia

Ocean Shores

Redmond

Shoreline

Ellensburg

Gig Harbor

Renton

Mukilteo

Cle Elum

Centralia

Federal Way

Poulsbo

Puyallup

Shelton

Why use momondo?

Why should I use momondo to find a flight deal from Toronto to Seattle?

It is quick and easy to find Toronto to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

Can I find flights from Toronto to Seattle with flexible booking policies on momondo?

Flights from Toronto to Seattle 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 Toronto to Seattle?

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 Seattle from Toronto.

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

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

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Cheap flights from Toronto Pearson Intl Airport to Seattle from C$ 215

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WestJet flights from Toronto Pearson Intl Airport to Seattle

Our best WestJet deals on Toronto Pearson Intl Airport to Seattle flight tickets

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Our best Alaska Airlines deals on Toronto Pearson Intl Airport to Seattle flight tickets

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Use the filters below to find and compare flights from Toronto Pearson Intl Airport to Seattle that are best for you.

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How to get the cheapest flight ticket from Toronto Pearson Intl Airport to Seattle

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

What is the typical price of a round-trip flight between Toronto Pearson Intl Airport and Seattle?

What is the cheapest month to fly to Seattle?

If you aren’t able to travel to Seattle during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 383.

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Toronto Pearson Intl Airport to Seattle during this time can be as low as C$ 444. Flights in the morning are often more expensive with an average ticket price of C$ 850.

What is the cheapest Toronto Pearson Intl to Seattle/Tacoma Intl flight route?

Fly from Toronto Pearson Intl to Seattle/Tacoma Intl for the best Toronto Pearson Intl - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

What cabin class options are available on Toronto Pearson Intl to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Toronto Pearson Intl to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Toronto Pearson Intl Airport to Seattle flight prices changed over time?

As of October 2025, prices for Toronto Pearson Intl Airport to Seattle flights are approximately 33% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Toronto Pearson Intl to Seattle/Tacoma Intl?

WestJet, Air Canada, and Delta are the most popular carriers operating from Toronto Pearson Intl to Seattle/Tacoma Intl

Which airlines fly to Seattle?

How often are flights from Toronto to Seattle delayed?

Historically, on average around 18% of flights between Toronto and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 159 minutes.

What is the most punctual flight time for Toronto to Seattle flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Toronto to Seattle flights?

According to our data, EVA Air has had the lowest number of delays on this route over the last 12 months, with no flights being classified as delayed.

Which airport is the most popular layover for flights between Toronto Pearson Intl Airport and Seattle?

Calgary (YYC) was the most common stop: 65% of momondo users choosing one-stop flights on this route connected there.

Which layover airport offers the lowest fares from Toronto Pearson Intl Airport to Seattle?

Flights via Montreal (YUL) offer the lowest average round-trip price of C$ 490.

Which layover airport has the shortest travel time from Toronto Pearson Intl Airport to Seattle?

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 8h 07m.

Which layover airport has the shortest connection time from Toronto Pearson Intl Airport to Seattle?

Vancouver (YVR) has the shortest average layover time for this route: 1h 48m.

How many flights depart from Toronto Pearson Intl Airport to Seattle on average per day?

The number of flights available between Toronto Pearson Intl Airport and Seattle is 4 per day as of October 2025. The most frequent departure time is 4:00p.m., with 53% of daily flights leaving in the afternoon.

How many flights depart from Toronto Pearson Intl Airport to Seattle on average per week?

The number of flights available between Toronto Pearson Intl Airport and Seattle is 29 per week as of October 2025. The most frequent departure day is Tue, with 24% of weekly flights leaving on this day.

When to book flights from Toronto Pearson Intl Airport to Seattle

Cheap Toronto Pearson Intl Airport to Seattle (YYZ to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Toronto Pearson Intl Airport to Seattle

Best price found

Fastest flight time

Direct flights

Airports in Seattle

How far is Toronto Pearson Intl to Seattle/Tacoma Intl by plane?

When did momondo last update prices for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Toronto Pearson Intl Airport to Seattle?

What is the most popular airline from Toronto Pearson Intl Airport to Seattle?

Best airlines flying from Toronto Pearson Intl Airport to Seattle

Compare and see reviews for airlines that fly from Toronto Pearson Intl Airport to Seattle with momondo

Alaska Airlines Flights From Toronto Pearson Intl Airport to Seattle

Hawaiian Airlines Flights From Toronto Pearson Intl Airport to Seattle

Travelling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Toronto to Seattle?