Cheap flights from Seattle to Toronto from $101
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 8/3. 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
Alaska Airlines flights from Seattle to Toronto Pearson Intl Airport
Our best Alaska Airlines deals on Seattle to Toronto Pearson Intl Airport flight tickets
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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 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 $304, 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 March to fly from Seattle, when ticket prices are also cheap, with an average price of $316.
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 $682.
What is the cheapest time of day to depart on your flight to Toronto Pearson Intl Airport?
Flying to Toronto Pearson Intl Airport from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $284 when looking at flights departing in the afternoon. Flights in the morning are often more expensive with an average ticket price of $619.
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 $424 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 $292 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 8% 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 July 2025, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 38% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Toronto Pearson Intl?
WestJet, Air Canada, and United Airlines 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 52% 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.
How many flights depart from Seattle to Toronto Pearson Intl Airport on average per day?
As of July 2025, there are 6 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 July 2025, there are 42 flights per week flying from Seattle to Toronto Pearson Intl Airport. The most common day of the week flights depart is Tue, with 19% 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
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 42m, 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 July 2025.
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 Boeing 737 MAX 8, representing 34.91% of all bookings. The subsequent popular models are Airbus A220-300 at 28.51%, Boeing 737-900 Passenger/BBJ3 (winglets) at 7.37%, and Airbus A330-200 at 5.70%.
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 50% of the total bookings. Other popular airlines include Air Canada with 24%, WestJet with 14%, and United Airlines with 8%.
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 $135 | Free Cancellation | Rating 7.1 9,660 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.4 8,858 reviews | |||
| PriceFrom $182 | Free Cancellation | Rating 8.0 7,974 reviews | |||
| PriceFrom $237 | Free Cancellation | Rating 7.2 2,909 reviews | |||
| PriceFrom $281 | Free Cancellation | Rating 8.0 10,000 reviews |
Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport
Alaska Airlines operates around 5 flights from Seattle to Toronto Pearson Intl Airport every week. The average price of these flights found in the last 72 hours has been $487, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as $281 round-trip. Alaska Airlines has been scored 8.0/10 in 10,000 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 $158, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $414 round-trip. United Airlines operates 12 flights out of Seattle into Toronto Pearson Intl Airport in an average week, so prices vary by time and availability. 8,858 United Airlines reviews by users on momondo have scored the airline at 7.4/10.
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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.