What airlines fly to Toronto Pearson Intl Airport?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Toronto Pearson Intl Airport from Seattle according to our data. Alaska Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Toronto Pearson Intl Airport. Keep in mind that there are 5 different airlines that fly to Toronto Pearson Intl Airport on a routine basis, so you have a few additional options to choose from.

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

Vancouver (YVR) has the shortest average layover time for this route: 1h 20m.

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

Calgary (YYC) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

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

Alaska Airlines, United Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Toronto Pearson Intl

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

Flights via Calgary (YYC) offer the lowest average round-trip price of $261.

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

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 6h 58m.

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

Prices for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport are updated daily.

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

There are 5 operators available for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport as of March 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport.

What documentation or ID do you need to fly to Toronto Pearson Intl Airport?

The travel and health documents you'll need for your trip to Toronto Pearson Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Toronto Pearson Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$98 Cheap Flights from Seattle to Toronto Pearson Intl Airport in 2026

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

As of March 2026, there are 4 flights per day flying from Seattle to Toronto Pearson Intl Airport. The most common time of day flights depart is 7:00AM, with 90% of flights taking off at noon.

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

As of March 2026, there are 32 flights per week flying from Seattle to Toronto Pearson Intl Airport. The most common day of the week flights depart is Sun, with 19% of flights taking off on this day.

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10:20 am - 11:46 pm

SEA

YYZ

10h 26m

2 stops

12:30 am - 9:50 am

YYZ

SEA

12h 20m

2 stops

$219Air Canada

Sat, Apr 25 - Fri, May 1

7:20 pm - 8:10 am

SEA

YYZ

9h 50m

2 stops

12:30 am - 9:50 am

YYZ

SEA

12h 20m

2 stops

$220Air Canada

Sat, May 2 - Fri, May 8

8:00 am - 3:54 pm

SEA

YYZ

4h 54mnonstop

6:45 pm - 9:08 pm

YYZ

SEA

5h 23mnonstop

$223Air Canada

Sat, Apr 25 - Sat, May 2

8:00 am - 3:50 pm

SEA

YYZ

4h 50mnonstop

6:45 pm - 9:08 pm

YYZ

SEA

5h 23mnonstop

$231Air Canada

Sat, May 2 - Sat, May 9

8:00 am - 3:54 pm

SEA

YYZ

4h 54mnonstop

12:30 am - 9:50 am

YYZ

SEA

12h 20m

2 stops

$233Air Canada

Sat, Apr 25 - Fri, May 1

10:20 am - 11:46 pm

SEA

YYZ

10h 26m

2 stops

12:30 am - 9:50 am

YYZ

SEA

12h 20m

2 stops

$235Air Canada

Sat, Apr 25 - Fri, May 1

8:00 am - 3:54 pm

SEA

YYZ

4h 54mnonstop

8:55 pm - 9:38 am

YYZ

SEA

15h 43m

1 stop

$252Air Canada

Thu, Apr 23 - Tue, Apr 28

7:20 pm - 9:03 am

SEA

YYZ

10h 43m

1 stop

6:45 pm - 9:08 pm

YYZ

SEA

5h 23mnonstop

$253Air Canada

Sat, May 2 - Sat, May 9

8:00 pm - 1:05 pm

SEA

YYZ

14h 05m

1 stop

8:55 pm - 9:38 am

YYZ

SEA

15h 43m

1 stop

$261Air Canada

Sun, Apr 19 - Tue, Apr 28

8:00 pm - 1:05 pm

SEA

YYZ

14h 05m

1 stop

7:30 pm - 9:53 pm

YYZ

SEA

5h 23mnonstop

$265Air Canada

Sun, Apr 19 - Tue, Apr 28

Air Canada flights from Seattle to Toronto Pearson Intl Airport

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

Air Canada

Apr 25

SEA10:20 amSeattle/Tacoma Intl

10h 26m

2 stops

YYZ11:46 pmToronto Pearson Intl

May 1

YYZ12:30 amToronto Pearson Intl

12h 20m

2 stops

SEA9:50 amSeattle/Tacoma Intl

$219

Air Canada

May 2

SEA7:20 pmSeattle/Tacoma Intl

9h 50m

2 stops

YYZ8:10 amToronto Pearson Intl

May 8

YYZ12:30 amToronto Pearson Intl

12h 20m

2 stops

SEA9:50 amSeattle/Tacoma Intl

$220

Air Canada

Apr 25

SEA8:00 amSeattle/Tacoma Intl

4h 54m

YYZ3:54 pmToronto Pearson Intl

May 2

YYZ6:45 pmToronto Pearson Intl

5h 23m

SEA9:08 pmSeattle/Tacoma Intl

$223

Delta flights from Seattle to Toronto Pearson Intl Airport

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

Delta

Mar 24

SEA11:15 pmSeattle/Tacoma Intl

6h 50m

1 stop

YYZ9:05 amToronto Pearson Intl

Mar 28

YYZ12:25 pmToronto Pearson Intl

12h 40m

1 stop

SEA10:05 pmSeattle/Tacoma Intl

$743

Delta

Mar 24

SEA11:15 pmSeattle/Tacoma Intl

6h 50m

1 stop

YYZ9:05 amToronto Pearson Intl

Apr 1

YYZ6:20 amToronto Pearson Intl

7h 13m

1 stop

SEA10:33 amSeattle/Tacoma Intl

$746

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 4/25

10:20 am-11:46 pm

2 stops10h 26m

Toronto Pearson Intl

Fri 5/1

12:30 am-9:50 am

2 stops12h 20m

$219

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 5/2

7:20 pm-8:10 am

2 stops9h 50m

Toronto Pearson Intl

Fri 5/8

12:30 am-9:50 am

2 stops12h 20m

$220

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 4/25

8:00 am-3:54 pm

Nonstop4h 54m

Toronto Pearson Intl

Sat 5/2

6:45 pm-9:08 pm

Nonstop5h 23m

$223

Quickest round-trip

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 5/2

8:00 am-3:50 pm

Nonstop4h 50m

Toronto Pearson Intl

Sat 5/9

6:45 pm-9:08 pm

Nonstop5h 23m

$231

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 4/25

8:00 am-3:54 pm

Nonstop4h 54m

Toronto Pearson Intl

Fri 5/1

12:30 am-9:50 am

2 stops12h 20m

$233

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 4/25

10:20 am-11:46 pm

2 stops10h 26m

Toronto Pearson Intl

Fri 5/1

12:30 am-9:50 am

2 stops12h 20m

$235

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 4/23

8:00 am-3:54 pm

Nonstop4h 54m

Toronto Pearson Intl

Tue 4/28

8:55 pm-9:38 am

1 stop15h 43m

$252

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 5/2

7:20 pm-9:03 am

1 stop10h 43m

Toronto Pearson Intl

Sat 5/9

6:45 pm-9:08 pm

Nonstop5h 23m

$253

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 4/19

8:00 pm-1:05 pm

1 stop14h 05m

Toronto Pearson Intl

Tue 4/28

8:55 pm-9:38 am

1 stop15h 43m

$261

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 4/19

8:00 pm-1:05 pm

1 stop14h 05m

Toronto Pearson Intl

Tue 4/28

7:30 pm-9:53 pm

Nonstop5h 23m

$265

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 Seattle to Toronto Pearson Intl Airport

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

What is the cheapest month to fly to Toronto Pearson Intl Airport?

The cheapest month to fly to Toronto Pearson Intl Airport from Seattle is in January. Flight prices, which tend to average around $265, are often lower during this time because this is during the off-season. If you don’t want to visit Toronto Pearson Intl Airport in January, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $276.

What is the cheapest day to depart on your flight to Toronto Pearson Intl Airport?

The cheapest day to depart from Seattle to Toronto Pearson Intl Airport is on a Tuesday when prices can be found for as low as $506. The most expensive day to fly to Toronto Pearson Intl Airport is Saturday, with ticket prices averaging around $686.

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

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

How far in advance should I book a flight to Toronto Pearson Intl Airport?

You are more likely to see cheaper flights to Toronto Pearson Intl Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around $380 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto Pearson Intl Airport from Seattle for as low as $188 on momondo.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Toronto Pearson 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 Seattle to Toronto Pearson Intl Airport flights?

You could potentially save up to 10% on your flight if you consider stops on a Seattle to Toronto Pearson Intl Airport flight.

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

As of March 2026, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 37% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Toronto Pearson Intl Airport

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

Estimated round-trip price

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

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

Best Price Found	$225
Fastest flight time	4h 40m
Direct flights	Every day

The best one-way flight to Toronto Pearson Intl Airport from Seattle in the past 72 hours is $225. The best round-trip flight deal from Seattle to Toronto Pearson Intl Airport found on momondo in the last 72 hours is $462.

The fastest flight from Seattle to Toronto Pearson Intl Airport takes 4h 40m

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

Search flight deals

How far is Seattle/Tacoma Intl to Toronto Pearson Intl by plane?
Seattle/Tacoma Intl and Toronto Pearson Intl are 2053.4 mi apart from one another. Flights usually cover this in 4h 40m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport?
There are 5 operators available for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport as of March 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport.
What documentation or ID do you need to fly to Toronto Pearson Intl Airport?
The travel and health documents you'll need for your trip to Toronto Pearson Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Toronto Pearson Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Toronto Pearson Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Toronto Pearson Intl Airport is Airbus A320-100/200, representing 15.97% of all bookings. The subsequent popular models are Airbus A330-900neo at 12.14%, Airbus A330-200 at 12.14%, and Airbus A220-300 at 10.54%.
What is the most popular airline from Seattle to Toronto Pearson Intl Airport?
Based on momondo bookings for flights between Seattle and Toronto Pearson Intl Airport, the leading airline is Alaska Airlines, making up 57% of the total bookings. Other popular airlines include Air Canada with 16%, WestJet with 12%, and Delta with 9%.

Best airlines flying from Seattle to Toronto Pearson Intl Airport

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $138	Free Cancellation	Rating 7.9 8,292 reviews	Search Delta flights
Air Canada	PriceFrom $165	Free Cancellation	Rating 7.1 10,801 reviews	Search Air Canada flights
WestJet	PriceFrom $222	Free Cancellation	Rating 7.2 3,295 reviews	Search WestJet flights
Alaska Airlines	PriceFrom $252	Free Cancellation	Rating 7.9 12,052 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $277	Free Cancellation	Rating 7.4 9,428 reviews	Search United Airlines flights

Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport
Alaska Airlines operates around 4 flights from Seattle to Toronto Pearson Intl Airport every week. The average price of these flights found in the last 72 hours has been $423, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as $252 round-trip. Alaska Airlines has been scored 7.9/10 in 12,052 reviews.
United Airlines Flights From Seattle to Toronto Pearson Intl Airport
The best United Airlines deal for Seattle to Toronto Pearson Intl Airport flight tickets found on momondo in the last 72 hours was $277, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $380 round-trip. United Airlines operates 9 flights out of Seattle into Toronto Pearson Intl Airport in an average week, so prices vary by time and availability. 9,428 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

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

All flight searches from Seattle to Toronto on momondo can be filtered to show those which offer flexible booking policies.

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Once all potential Seattle to Toronto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Seattle to Toronto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Toronto Pearson Intl Airport trip

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Cheap flights from Seattle to Toronto from $98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Toronto departing on 4/27. 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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Air Canada flights from Seattle to Toronto Pearson Intl Airport

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

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

momondo Fare Finder

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

See travel insights to Toronto from

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

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

What is the cheapest month to fly to Toronto Pearson Intl Airport?

What is the cheapest day to depart on your flight to Toronto Pearson Intl Airport?

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

How far in advance should I book a flight to Toronto Pearson Intl Airport?

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

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

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

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

What airlines fly to Toronto Pearson Intl Airport?

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

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

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

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

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

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

When to book flights from Seattle to Toronto Pearson Intl Airport

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

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

Best Price Found

Fastest flight time

Direct flights

Best airlines flying from Seattle to Toronto Pearson Intl Airport

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

Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport

United Airlines Flights From Seattle to Toronto Pearson Intl Airport

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