Cheap flights from Seattle to Toronto from $184
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 1/10. 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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Not ready to book? to track prices.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
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Fly from
Fly to
Route
Depart
Return
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Wed 2/24
2:30 pm-5:45 am
2 stops12h 15m
Toronto Pearson Intl
Wed 3/3
7:30 am-1:40 pm
1 stop9h 10m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Thu 1/21
2:30 pm-5:45 am
2 stops12h 15m
Toronto Pearson Intl
Sun 1/24
7:30 am-1:40 pm
1 stop9h 10m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Sun 11/22
9:53 pm-6:50 am
1 stop29h 57m
Toronto Pearson Intl
Wed 12/2
7:30 am-1:40 pm
1 stop9h 10m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Sun 11/22
9:53 pm-6:50 am
1 stop29h 57m
Toronto Pearson Intl
Thu 12/3
7:30 am-1:40 pm
1 stop9h 10m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Sat 11/7
8:19 am-4:05 pm
Nonstop4h 46m
Toronto Pearson Intl
Sat 11/14
5:15 pm-7:45 pm
Nonstop5h 30m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Sat 10/31
8:20 am-4:05 pm
Nonstop4h 45m
Toronto Pearson Intl
Sat 11/7
5:15 pm-7:45 pm
Nonstop5h 30m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Sat 11/7
11:10 pm-8:49 am
1 stop6h 39m
Toronto Pearson Intl
Sat 11/14
12:15 pm-6:37 pm
1 stop9h 22m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Sat 11/7
11:59 pm-12:19 pm
1 stop9h 20m
Toronto Pearson Intl
Tue 11/10
5:25 pm-11:57 pm
1 stop9h 32m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Sat 11/7
7:05 pm-6:52 am
1 stop8h 47m
Toronto Pearson Intl
Sat 11/14
6:25 pm-8:59 pm
Nonstop5h 34m
SeattleToronto
SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl
SEAYYZ
Seattle/Tacoma Intl
Sat 11/7
7:45 am-3:25 pm
Nonstop4h 40m
Toronto Pearson Intl
Sat 11/14
6:25 pm-8:59 pm
Nonstop5h 34m
See travel insights to Toronto from
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
What is the typical price of a round-trip flight between Seattle and Toronto Pearson Intl Airport?
Prices are currently typical for flights on this route.
Typical prices usually range from $385 to $605.The lowest price recently found on this route was $410.
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 $277.
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 $550. The most expensive day to fly to Toronto Pearson Intl Airport is Sunday, with ticket prices averaging around $771.
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 $415 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.
Can stopping save me money on Seattle to Toronto Pearson Intl Airport flights?
You could potentially save up to 14% on your flight if you consider stops on a Seattle to Toronto Pearson Intl Airport flight.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Toronto Pearson Intl?
Alaska Airlines 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, 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 57% 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.
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.
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.
How many flights depart from Seattle to Toronto Pearson Intl Airport on average per day?
As of October 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 100% of flights taking off at noon.
How many flights depart from Seattle to Toronto Pearson Intl Airport on average per week?
As of October 2026, there are 30 flights per week flying from Seattle to Toronto Pearson Intl Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.
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
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 32m, 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 October 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 18.42% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 11.05%, Airbus A321neo at 8.42%, and Boeing 777-300ER at 7.37%.
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 55% of the total bookings. Other popular airlines include WestJet with 18%, Air Canada with 14%, 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 | ||
|---|---|---|---|---|---|
| PriceFrom $132 | Free Cancellation | Rating 7.8 8,628 reviews | |||
| PriceFrom $132 | Free Cancellation | Rating 7.1 11,722 reviews | |||
| PriceFrom $240 | Free Cancellation | Rating 7.2 3,448 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 7.9 13,015 reviews | |||
| PriceFrom $277 | Free Cancellation | Rating 7.4 10,285 reviews |
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 $508, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as $246 round-trip. Alaska Airlines has been scored 7.9/10 in 13,015 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 $579 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. 10,283 United Airlines reviews by users on momondo have scored the airline at 7.4/10.
Traveling to a place near Toronto?
Book flights to Toronto if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Toronto?
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.