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

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

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 3 per day as of September 2025. The most frequent departure time is 8:00a.m., with 52% of daily flights leaving at noon.

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 27 per week as of September 2025. The most frequent departure day is Tue, with 22% of weekly flights leaving on this day.

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 42% 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.

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

Calgary (YYC) was the most common stop: 64% of momondo users choosing one-stop flights on this route connected there.

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

Flights via Montreal (YUL) offer the lowest average round-trip price of C$ 482.

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.

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$ 212 Cheap Flights from Toronto Pearson Intl Airport to Seattle (YYZ-SEA) in 2025

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Find the cheapest flights from Toronto Pearson Intl Airport to Seattle (YYZ-SEA)

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:30 a.m. - 12:59 p.m.YYZ-SEA

9h 29m1 stop

8:40 a.m. - 3:52 p.m.SEA-YYZ

28h 12m1 stop

C$ 309WestJet

Find Deal

Tue, 23 Sep - Mon, 29 Sep

6:30 a.m. - 12:59 p.m.YYZ-SEA

9h 29m1 stop

1:50 p.m. - 12:22 a.m.SEA-YYZ

7h 32m1 stop

C$ 310WestJet

Find Deal

Tue, 16 Sep - Sat, 20 Sep

8:00 a.m. - 2:26 p.m.YYZ-SEA

9h 26m1 stop

10:05 a.m. - 12:04 a.m.SEA-YYZ

10h 59m2 stops

C$ 313Air Canada

Find Deal

Tue, 4 Nov - Tue, 11 Nov

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

5h 20mdirect

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

4h 40mdirect

C$ 316Alaska Airlines

Find Deal

Tue, 4 Nov - Wed, 12 Nov

3:30 p.m. - 10:45 p.m.YYZ-SEA

10h 15m1 stop

5:20 p.m. - 7:30 a.m.SEA-YYZ

11h 10m1 stop

C$ 320United Airlines

Find Deal

Tue, 4 Nov - Wed, 12 Nov

8:00 a.m. - 6:36 p.m.YYZ-SEA

13h 36m1 stop

2:55 p.m. - 1:06 a.m.SEA-YYZ

7h 11m1 stop

C$ 324Air Canada

Find Deal

Wed, 24 Sep - Fri, 3 Oct

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

5h 20mdirect

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

4h 40mdirect

C$ 326Alaska Airlines

Find Deal

Wed, 5 Nov - Thu, 13 Nov

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$ 332

Find Deal

Sun, 2 Nov - Wed, 12 Nov

5:30 a.m. - 10:15 p.m.YYZ-SEA

19h 45m1 stop

11:59 p.m. - 4:02 p.m.SEA-YYZ

13h 03m1 stop

C$ 335United Airlines

Find Deal

Sun, 2 Nov - Fri, 14 Nov

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$ 338

Find Deal

Mon, 3 Nov - Thu, 13 Nov

WestJet flights from Toronto Pearson Intl Airport to Seattle

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

WestJet

23 Sep

YYZ6:30 a.m.Toronto Pearson Intl

9h 29m

1 stop

SEA12:59 p.m.Seattle/Tacoma Intl

29 Sep

SEA8:40 a.m.Seattle/Tacoma Intl

28h 12m

1 stop

YYZ3:52 p.m.Toronto Pearson Intl

C$ 309

Find similar

WestJet

16 Sep

YYZ6:30 a.m.Toronto Pearson Intl

9h 29m

1 stop

SEA12:59 p.m.Seattle/Tacoma Intl

20 Sep

SEA1:50 p.m.Seattle/Tacoma Intl

7h 32m

1 stop

YYZ12:22 a.m.Toronto Pearson Intl

C$ 310

Find similar

WestJet

24 Sep

YYZ1:30 p.m.Toronto Pearson Intl

8h 51m

1 stop

SEA7:21 p.m.Seattle/Tacoma Intl

30 Sep

SEA7:05 a.m.Seattle/Tacoma Intl

7h 17m

1 stop

YYZ5:22 p.m.Toronto Pearson Intl

C$ 312

Find similar

Air Canada flights from Toronto Pearson Intl Airport to Seattle

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

Air Canada

4 Nov

YYZ8:00 a.m.Toronto Pearson Intl

9h 26m

1 stop

SEA2:26 p.m.Seattle/Tacoma Intl

11 Nov

SEA10:05 a.m.Seattle/Tacoma Intl

10h 59m

2 stops

YYZ12:04 a.m.Toronto Pearson Intl

C$ 313

Find similar

Air Canada

24 Sep

YYZ8:00 a.m.Toronto Pearson Intl

13h 36m

1 stop

SEA6:36 p.m.Seattle/Tacoma Intl

3 Oct

SEA2:55 p.m.Seattle/Tacoma Intl

7h 11m

1 stop

YYZ1:06 a.m.Toronto Pearson Intl

C$ 324

Find similar

Air Canada

1 Nov

YYZ9:00 a.m.Toronto Pearson Intl

8h 26m

1 stop

SEA2:26 p.m.Seattle/Tacoma Intl

9 Nov

SEA8:00 p.m.Seattle/Tacoma Intl

7h 29m

1 stop

YYZ6:29 a.m.Toronto Pearson Intl

C$ 327

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

Tue 23/9

6:30 a.m.-12:59 p.m.

1 stop9h 29m

Seattle/Tacoma Intl

Mon 29/9

8:40 a.m.-3:52 p.m.

1 stop28h 12m

C$ 309

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 16/9

6:30 a.m.-12:59 p.m.

1 stop9h 29m

Seattle/Tacoma Intl

Sat 20/9

1:50 p.m.-12:22 a.m.

1 stop7h 32m

C$ 310

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 4/11

8:00 a.m.-2:26 p.m.

1 stop9h 26m

Seattle/Tacoma Intl

Tue 11/11

10:05 a.m.-12:04 a.m.

2 stops10h 59m

C$ 313

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 4/11

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

Nonstop5h 20m

Seattle/Tacoma Intl

Wed 12/11

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

Nonstop4h 40m

C$ 316

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 4/11

3:30 p.m.-10:45 p.m.

1 stop10h 15m

Seattle/Tacoma Intl

Wed 12/11

5:20 p.m.-7:30 a.m.

1 stop11h 10m

C$ 320

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Wed 24/9

8:00 a.m.-6:36 p.m.

1 stop13h 36m

Seattle/Tacoma Intl

Fri 3/10

2:55 p.m.-1:06 a.m.

1 stop7h 11m

C$ 324

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Wed 5/11

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

Nonstop5h 20m

Seattle/Tacoma Intl

Thu 13/11

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

Nonstop4h 40m

C$ 326

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sun 2/11

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

1 stop9h 35m

Seattle/Tacoma Intl

Wed 12/11

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

Nonstop4h 40m

C$ 332

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sun 2/11

5:30 a.m.-10:15 p.m.

1 stop19h 45m

Seattle/Tacoma Intl

Fri 14/11

11:59 p.m.-4:02 p.m.

1 stop13h 03m

C$ 335

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Mon 3/11

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

1 stop9h 35m

Seattle/Tacoma Intl

Thu 13/11

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

Nonstop4h 40m

C$ 338

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

Layovers

Other information

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$ 381.

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$ 558. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 747. 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$ 456. Flights in the morning are often more expensive with an average ticket price of C$ 844.

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$ 497 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$ 418 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.

Can stopping save me money on Toronto Pearson Intl Airport to Seattle flights?

No. A direct flight is the cheapest option for a flight between Toronto Pearson Intl Airport to Seattle.

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

As of September 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$ 440
Fastest flight time	5h 15m
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$ 440. The best round-trip flight deal from Toronto Pearson Intl Airport to Seattle found on momondo in the last 72 hours is C$ 484.

The fastest flight from Toronto Pearson Intl Airport to Seattle takes 5h 15m

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 19m.
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 September 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 Boeing 737 MAX 8, representing 30.56% of all bookings. The subsequent popular models are Airbus A320-100/200 at 19.35%, Airbus A220-300 at 16.92%, and Boeing 737-900 Passenger/BBJ3 (winglets) at 13.83%.
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 39% of the total bookings. Other popular airlines include Air Canada with 31%, WestJet with 16%, and United Airlines with 8%.

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$ 297	Free Cancellation	Rating 7.2 3,082 reviews	Search WestJet flights
Alaska Airlines	PriceFrom C$ 326	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom C$ 344	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 365	Free Cancellation	Rating 7.4 8,937 reviews	Search United Airlines flights
Delta	PriceFrom C$ 377	Free Cancellation	Rating 7.9 7,976 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom C$ 410	Free Cancellation	Rating 7.8 2,706 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 2 times per week, with 10,000 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$ 236 (round-trip), much lower than the average airfare cost of C$ 375 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$ 297 round-trip, depending on your selected dates, with average Hawaiian Airlines deals seen on momondo around C$ 336. Hawaiian Airlines operates 4 flights to Seattle from Toronto Pearson Intl Airport in an average week. Users have rated it 7.8/10 across 2,706 reviews.

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Tacoma

SeaTac

Kirkland

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Shoreline

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Gig Harbor

Renton

Mukilteo

Cle Elum

Poulsbo

Puyallup

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Kent

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.

An easier way to manage your Seattle 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.

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Cheap flights from Toronto Pearson Intl Airport to Seattle from C$ 212

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Find the cheapest flights from Toronto Pearson Intl Airport to Seattle (YYZ-SEA)

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

WestJet flights from Toronto Pearson Intl Airport to Seattle

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

Air Canada flights from Toronto Pearson Intl Airport to Seattle

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

momondo Fare Finder

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

See travel insights to Seattle from

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 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$ 381.

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$ 456. Flights in the morning are often more expensive with an average ticket price of C$ 844.

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.

Can stopping save me money on Toronto Pearson Intl Airport to Seattle flights?

No. A direct flight is the cheapest option for a flight between Toronto Pearson Intl Airport to Seattle.

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

As of September 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 United Airlines are the most popular carriers operating from Toronto Pearson Intl to Seattle/Tacoma Intl

Which airlines fly to Seattle?

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

Calgary (YYC) was the most common stop: 64% 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$ 482.

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 3 per day as of September 2025. The most frequent departure time is 8:00a.m., with 52% of daily flights leaving at noon.

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 27 per week as of September 2025. The most frequent departure day is Tue, with 22% 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?

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

How can momondo help me find flights from Toronto to Seattle?

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

An easier way to manage your Seattle 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.