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 airlines fly to Toronto Pearson Intl Airport?

Alaska Airlines, WestJet and Air Canada 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.

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

Calgary (YYC) was the most common stop: 80% 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 Salt Lake City (SLC) offer the lowest average round-trip price of $293.

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

WestJet is the most popular carrier operating from Seattle/Tacoma Intl to Toronto Pearson Intl

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

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 8h 07m.

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 August 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.

$186 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 August 2026, there are 3 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 August 2026, there are 24 flights per week flying from Seattle to Toronto Pearson Intl Airport. The most common day of the week flights depart is Mon, with 21% of flights taking off on this day.

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Find the cheapest flights from Seattle to Toronto

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:35 pm - 6:55 am

SEA

YYZ

8h 20m

1 stop

12:40 pm - 6:45 pm

YYZ

SEA

9h 05m

2 stops

$375WestJet

Tue, Sep 29 - Sun, Oct 11

7:35 pm - 5:45 am

SEA

YYZ

7h 10m

1 stop

12:40 pm - 6:45 pm

YYZ

SEA

9h 05m

2 stops

$375WestJet

Mon, Sep 28 - Wed, Sep 30

9:45 pm - 8:09 pm

SEA

YYZ

19h 24m

1 stop

8:35 pm - 9:42 am

YYZ

SEA

16h 07m

1 stop

$375Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

9:45 pm - 8:09 pm

SEA

YYZ

19h 24m

1 stop

8:35 pm - 9:42 am

YYZ

SEA

16h 07m

1 stop

$376Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

5:50 am - 5:35 pm

SEA

YYZ

8h 45m

2 stops

12:30 am - 10:05 am

YYZ

SEA

12h 35m

2 stops

$403Air Canada

Tue, Sep 15 - Mon, Sep 21

8:00 am - 3:41 pm

SEA

YYZ

4h 41mnonstop

6:45 pm - 9:04 pm

YYZ

SEA

5h 19mnonstop

$417Air Canada

Sat, Sep 19 - Fri, Sep 25

8:18 am - 4:05 pm

SEA

YYZ

4h 47mnonstop

5:15 pm - 7:44 pm

YYZ

SEA

5h 29mnonstop

$437Alaska Airlines

Wed, Nov 4 - Wed, Nov 11

8:00 am - 3:45 pm

SEA

YYZ

4h 45mnonstop

4:55 pm - 7:26 pm

YYZ

SEA

5h 31mnonstop

$446Alaska Airlines

Wed, Oct 7 - Wed, Oct 21

11:59 pm - 12:19 pm

SEA

YYZ

9h 20m

1 stop

12:49 pm - 4:58 pm

YYZ

SEA

7h 09m

1 stop

$474Delta

Sat, Oct 24 - Sat, Oct 31

6:00 am - 6:34 pm

SEA

YYZ

9h 34m

1 stop

6:00 am - 12:42 pm

YYZ

SEA

9h 42m

2 stops

$482Delta

Wed, Sep 16 - Sat, Oct 10

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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

WestJet

Sep 29

SEA7:35 pmSeattle/Tacoma Intl

8h 20m

1 stop

YYZ6:55 amToronto Pearson Intl

Oct 16

YYZ12:40 pmToronto Pearson Intl

9h 05m

2 stops

SEA6:45 pmSeattle/Tacoma Intl

$375

WestJet

Oct 7

SEA10:30 amSeattle/Tacoma Intl

7h 45m

1 stop

YYZ9:15 pmToronto Pearson Intl

Oct 21

YYZ12:00 pmToronto Pearson Intl

9h 45m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

$376

WestJet

Oct 2

SEA10:30 amSeattle/Tacoma Intl

9h 55m

2 stops

YYZ11:25 pmToronto Pearson Intl

Oct 14

YYZ12:40 pmToronto Pearson Intl

9h 05m

2 stops

SEA6:45 pmSeattle/Tacoma Intl

$377

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

Sep 19

SEA8:00 amSeattle/Tacoma Intl

4h 41m

YYZ3:41 pmToronto Pearson Intl

Sep 25

YYZ6:45 pmToronto Pearson Intl

5h 19m

SEA9:04 pmSeattle/Tacoma Intl

$417

Air Canada

Sep 15

SEA10:50 amSeattle/Tacoma Intl

7h 10m

1 stop

YYZ9:00 pmToronto Pearson Intl

Sep 22

YYZ6:10 pmToronto Pearson Intl

7h 37m

1 stop

SEA10:47 pmSeattle/Tacoma Intl

$424

Air Canada

Aug 17

SEA5:50 amSeattle/Tacoma Intl

15h 16m

2 stops

YYZ12:06 amToronto Pearson Intl

Sep 9

YYZ8:00 amToronto Pearson Intl

13h 32m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

$615

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

Tue 9/29

7:35 pm-6:55 am

1 stop8h 20m

Toronto Pearson Intl

Sun 10/11

12:40 pm-6:45 pm

2 stops9h 05m

$375

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 9/28

7:35 pm-5:45 am

1 stop7h 10m

Toronto Pearson Intl

Wed 9/30

12:40 pm-6:45 pm

2 stops9h 05m

$375

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 9/14

9:45 pm-8:09 pm

1 stop19h 24m

Toronto Pearson Intl

Mon 9/21

8:35 pm-9:42 am

1 stop16h 07m

$375

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 9/14

9:45 pm-8:09 pm

1 stop19h 24m

Toronto Pearson Intl

Mon 9/21

8:35 pm-9:42 am

1 stop16h 07m

$376

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 9/15

5:50 am-5:35 pm

2 stops8h 45m

Toronto Pearson Intl

Mon 9/21

12:30 am-10:05 am

2 stops12h 35m

$403

Quickest round-trip

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 9/19

8:00 am-3:41 pm

Nonstop4h 41m

Toronto Pearson Intl

Fri 9/25

6:45 pm-9:04 pm

Nonstop5h 19m

$417

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 11/4

8:18 am-4:05 pm

Nonstop4h 47m

Toronto Pearson Intl

Wed 11/11

5:15 pm-7:44 pm

Nonstop5h 29m

$437

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 10/7

8:00 am-3:45 pm

Nonstop4h 45m

Toronto Pearson Intl

Wed 10/21

4:55 pm-7:26 pm

Nonstop5h 31m

$446

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 10/24

11:59 pm-12:19 pm

1 stop9h 20m

Toronto Pearson Intl

Sat 10/31

12:49 pm-4:58 pm

1 stop7h 09m

$474

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 9/16

6:00 am-6:34 pm

1 stop9h 34m

Toronto Pearson Intl

Sat 10/10

6:00 am-12:42 pm

2 stops9h 42m

$482

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?

Prices are currently low for flights on this route.

Typical prices usually range from $389 to $740.
The lowest price recently found on this route was $375.

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 $516. The most expensive day to fly to Toronto Pearson Intl Airport is Sunday, with ticket prices averaging around $784.

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 $398 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 $318 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.

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

As of August 2026, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 12% 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	$293
Fastest flight time	4h 39m
Direct flights	Mon, Wed, Thu, Fri, Sat and Sun

The best one-way flight to Toronto Pearson Intl Airport from Seattle in the past 72 hours is $293. The best round-trip flight deal from Seattle to Toronto Pearson Intl Airport found on momondo in the last 72 hours is $496.

The fastest flight from Seattle to Toronto Pearson Intl Airport takes 4h 39m

Direct flights go from Seattle to Toronto Pearson Intl Airport on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Alaska Airlines.

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 39m, 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 August 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 59.87% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 5.64%, Boeing 777-300ER at 5.02%, and Airbus A350-900 at 4.08%.
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 52% of the total bookings. Other popular airlines include WestJet with 18%, Air Canada with 16%, and Delta with 10%.

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 11,424 reviews	Search Air Canada flights
Delta	PriceFrom $142	Free Cancellation	Rating 7.8 8,483 reviews	Search Delta flights
WestJet	PriceFrom $226	Free Cancellation	Rating 7.2 3,426 reviews	Search WestJet flights
Alaska Airlines	PriceFrom $250	Free Cancellation	Rating 7.9 12,761 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $277	Free Cancellation	Rating 7.4 10,060 reviews	Search United Airlines flights

Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport
Alaska Airlines operates around 6 flights from Seattle to Toronto Pearson Intl Airport every week. The average price of these flights found in the last 72 hours has been $469, 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 12,761 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 $489 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. 10,060 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.

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 $186

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 10/8. 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

Air Canada flights from Seattle to Toronto Pearson Intl Airport

Our best Air Canada 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 from Seattle to Toronto Pearson Intl Airport?

What cabin class options are available 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

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

Traveling to a place near Toronto?

Why use momondo?

An easier way to manage your Toronto Pearson Intl Airport trip

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

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