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

Flights connecting via Calgary (YYC) have the shortest average one-way travel time: 8h 00m.

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

Calgary (YYC) was the most common stop: 83% of momondo users choosing 1-stop flights on this route connected there.

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 $291.

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

Salt Lake City (SLC) has the shortest average layover time for this route: 1h 26m.

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

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

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 56% 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.

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 June 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.

$178 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 June 2026, there are 4 flights per day flying from Seattle to Toronto Pearson Intl Airport. The most common time of day flights depart is 8:00AM, with 100% of flights taking off at noon.

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

As of June 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 Mon, with 16% of flights taking off on this day.

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Enter your travel dates to find the best prices.

10:30 am - 11:59 pm

SEA

YYZ

10h 29m

2 stops

12:00 pm - 6:45 pm

YYZ

SEA

9h 45m

2 stops

$395WestJet

Wed, Aug 26 - Thu, Aug 27

10:30 am - 11:59 pm

SEA

YYZ

10h 29m

2 stops

2:50 pm - 9:00 pm

YYZ

SEA

9h 10m

1 stop

$401WestJet

Wed, Jul 22 - Sat, Jul 25

10:30 am - 9:15 pm

SEA

YYZ

7h 45m

1 stop

3:50 pm - 9:00 pm

YYZ

SEA

8h 10m

1 stop

$402WestJet

Fri, Jul 17 - Fri, Jul 24

10:30 am - 10:45 pm

SEA

YYZ

9h 15m

1 stop

12:00 pm - 6:45 pm

YYZ

SEA

9h 45m

2 stops

$403WestJet

Fri, Jul 17 - Fri, Jul 24

10:30 am - 10:45 pm

SEA

YYZ

9h 15m

1 stop

12:00 pm - 9:00 pm

YYZ

SEA

12h 00m

2 stops

$404WestJet

Tue, Jul 21 - Fri, Jul 24

10:30 am - 10:45 pm

SEA

YYZ

9h 15m

1 stop

2:50 pm - 9:00 pm

YYZ

SEA

9h 10m

1 stop

$406WestJet

Tue, Jul 21 - Fri, Jul 24

10:30 am - 11:59 pm

SEA

YYZ

10h 29m

2 stops

12:00 pm - 9:00 pm

YYZ

SEA

12h 00m

2 stops

$407WestJet

Tue, Jul 21 - Fri, Jul 24

3:10 pm - 4:58 am

SEA

YYZ

10h 48m

2 stops

7:45 am - 1:20 pm

YYZ

SEA

8h 35m

1 stop

$409WestJet

Wed, Nov 11 - Mon, Nov 16

10:30 am - 11:59 pm

SEA

YYZ

10h 29m

2 stops

12:30 am - 10:07 am

YYZ

SEA

12h 37m

2 stops

$411Multiple Airlines

Wed, Jul 22 - Fri, Jul 24

10:30 am - 9:15 pm

SEA

YYZ

7h 45m

1 stop

12:00 pm - 6:45 pm

YYZ

SEA

9h 45m

2 stops

$412WestJet

Sat, Aug 29 - Sun, Sep 6

WestJet flights from Seattle to Toronto Pearson Intl Airport

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

WestJet

Aug 26

SEA10:30 amSeattle/Tacoma Intl

10h 29m

2 stops

YYZ11:59 pmToronto Pearson Intl

Aug 27

YYZ12:00 pmToronto Pearson Intl

9h 45m

2 stops

SEA6:45 pmSeattle/Tacoma Intl

$395

WestJet

Jul 22

SEA10:30 amSeattle/Tacoma Intl

10h 29m

2 stops

YYZ11:59 pmToronto Pearson Intl

Jul 25

YYZ2:50 pmToronto Pearson Intl

9h 10m

1 stop

SEA9:00 pmSeattle/Tacoma Intl

$401

WestJet

Jul 17

SEA10:30 amSeattle/Tacoma Intl

7h 45m

1 stop

YYZ9:15 pmToronto Pearson Intl

Jul 24

YYZ3:50 pmToronto Pearson Intl

8h 10m

1 stop

SEA9:00 pmSeattle/Tacoma Intl

$402

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

Wed 8/26

10:30 am-11:59 pm

2 stops10h 29m

Toronto Pearson Intl

Thu 8/27

12:00 pm-6:45 pm

2 stops9h 45m

$395

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 7/22

10:30 am-11:59 pm

2 stops10h 29m

Toronto Pearson Intl

Sat 7/25

2:50 pm-9:00 pm

1 stop9h 10m

$401

Quickest round-trip

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 7/17

10:30 am-9:15 pm

1 stop7h 45m

Toronto Pearson Intl

Fri 7/24

3:50 pm-9:00 pm

1 stop8h 10m

$402

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 7/17

10:30 am-10:45 pm

1 stop9h 15m

Toronto Pearson Intl

Fri 7/24

12:00 pm-6:45 pm

2 stops9h 45m

$403

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 7/21

10:30 am-10:45 pm

1 stop9h 15m

Toronto Pearson Intl

Fri 7/24

12:00 pm-9:00 pm

2 stops12h 00m

$404

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 7/21

10:30 am-10:45 pm

1 stop9h 15m

Toronto Pearson Intl

Fri 7/24

2:50 pm-9:00 pm

1 stop9h 10m

$406

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 7/21

10:30 am-11:59 pm

2 stops10h 29m

Toronto Pearson Intl

Fri 7/24

12:00 pm-9:00 pm

2 stops12h 00m

$407

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 11/11

3:10 pm-4:58 am

2 stops10h 48m

Toronto Pearson Intl

Mon 11/16

7:45 am-1:20 pm

1 stop8h 35m

$409

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 7/22

10:30 am-11:59 pm

2 stops10h 29m

Toronto Pearson Intl

Fri 7/24

12:30 am-10:07 am

2 stops12h 37m

$411

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 8/29

10:30 am-9:15 pm

1 stop7h 45m

Toronto Pearson Intl

Sun 9/6

12:00 pm-6:45 pm

2 stops9h 45m

$412

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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 $509. The most expensive day to fly to Toronto Pearson Intl Airport is Sunday, with ticket prices averaging around $759.

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 from Seattle 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 $392 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 $280 on momondo.

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

There are 4 cabin classes available to choose from on Seattle to Toronto Pearson Intl Airport 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 23% 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 June 2026, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 41% 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	$357
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 $357. The best round-trip flight deal from Seattle to Toronto Pearson Intl Airport found on momondo in the last 72 hours is $581.

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

Frequently asked questions about flying from Seattle to Toronto Pearson Intl Airport

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 June 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 A220-300, representing 56.95% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 7.52%, Boeing 737-900 Passenger/BBJ3 (winglets) at 5.47%, and Airbus A330-900neo at 4.10%.
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 53% of the total bookings. Other popular airlines include WestJet with 16%, Air Canada with 16%, and Delta with 11%.

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
Air Canada	PriceFrom $132	Free Cancellation	Rating 7.1 11,146 reviews	Search Air Canada flights
Delta	PriceFrom $142	Free Cancellation	Rating 7.9 8,395 reviews	Search Delta flights
WestJet	PriceFrom $226	Free Cancellation	Rating 7.2 3,354 reviews	Search WestJet flights
Alaska Airlines	PriceFrom $250	Free Cancellation	Rating 7.9 12,480 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $277	Free Cancellation	Rating 7.4 9,783 reviews	Search United Airlines flights

Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport
Alaska Airlines operates around 7 flights from Seattle to Toronto Pearson Intl Airport every week. The average price of these flights found in the last 72 hours has been $444, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as $250 round-trip. Alaska Airlines has been scored 7.9/10 in 12,480 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 7 flights out of Seattle into Toronto Pearson Intl Airport in an average week, so prices vary by time and availability. 9,783 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

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momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Toronto. momondo saves you time and could save you money on your trip.

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.

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

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.

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Cheap flights from Seattle to Toronto from $178

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 10/28. 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 Seattle to Toronto Pearson Intl Airport

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

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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 from Seattle to Toronto Pearson Intl Airport?

What cabin class options are available on Seattle to Toronto Pearson Intl Airport 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

Frequently asked questions about flying from Seattle to Toronto Pearson Intl Airport

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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