Cheap flights from Seattle to Toronto from $97
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 7/24. 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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How to get the cheapest flight ticket from Seattle to Toronto
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?
What is the cheapest month to fly to Toronto?
The month of January is, on average, the cheapest month to fly to Toronto from Seattle, with most prices found around $282. If you are unable to visit Toronto during the month of January, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $286.
What is the cheapest day to depart on your flight to Toronto?
On average, the least expensive day to fly to Toronto from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $561. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Toronto is Saturday, with ticket prices averaging around $677.
What is the cheapest time of day to depart on your flight to Toronto?
In the afternoon is the cheapest time of day to fly from Seattle to Toronto when you can find flight prices for as low as $283. Flying to Toronto in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Toronto are more costly in the morning, with an average ticket price of $619. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Seattle/Tacoma Intl to Toronto flight route?
Fly from Seattle/Tacoma Intl to Toronto Pearson Intl for the best Seattle/Tacoma Intl - Toronto flight prices
How far in advance should I book a flight to Toronto?
You are more likely to see cheaper flights to Toronto from Seattle when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around $424 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from Seattle for as low as $292 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Toronto flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Toronto 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 flights?
You could potentially save up to 41% on your flight if you consider stops on a Seattle to Toronto flight.
How have Seattle to Toronto flight prices changed over time?
As of June 2025, prices for Seattle to Toronto flights are approximately 42% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Toronto?
WestJet, Air Canada, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Toronto
What airlines fly to Toronto?
Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Toronto 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. Keep in mind that there are 5 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Toronto on average per day?
As of June 2025, 5 flights take off from Seattle and land in Toronto each day. The most common flight departure time for this route is 11:00AM, with 100% of daily flights taking off at noon.
How many flights depart from Seattle to Toronto on average per week?
As of June 2025, there are 36 flights per week flying from Seattle to Toronto. The most common day of the week flights depart is Tue, with 17% of flights taking off on this day.
When to book flights from Seattle to Toronto
Cheap Seattle to Toronto (SEA to YTO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Toronto
How far is Seattle/Tacoma Intl to Toronto by plane?
Seattle/Tacoma Intl and Toronto are 2065.1 mi apart from one another. By plane, this route typically takes 4h 39m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Toronto?
Prices for flights from Seattle/Tacoma Intl Airport to Toronto are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Toronto?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Toronto is 5 as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Toronto?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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.
What documentation or ID do you need to fly to Toronto?
The travel and health documents you'll need for your trip to Toronto 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. 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?
Based on momondo bookings for flights between Seattle and Toronto, the leading plane model is Airbus A220-300, making up 37.72% of the total bookings. Other popular models include Boeing 737 MAX 8 with 28.47%, Airbus A330-200 with 6.65%, and Boeing 737-900 Passenger/BBJ3 (winglets) with 5.06%.
What is the most popular airline from Seattle to Toronto?
momondo data reveals that the most frequently booked airline on the route from Seattle to Toronto is Alaska Airlines, representing 56% of all bookings. The subsequent popular airlines are Air Canada at 20%, WestJet at 14%, and United Airlines at 7%.
Best airlines flying from Seattle to Toronto
Compare and see reviews for airlines that fly from Seattle to Toronto with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $135 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom $145 | Free Cancellation | Rating 7.2 2,868 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $267 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $321 | Free Cancellation | Rating 8.0 7,946 reviews |
Alaska Airlines Flights From Seattle to Toronto
Alaska Airlines flight deals from Seattle to Toronto start from $267 round-trip. Over the 4 Alaska Airlines flights for this route in a normal week, average airfare is usually $490 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Seattle to Toronto
United Airlines is also a popular choice for this route. United Airlines flight deals for Seattle to Toronto start from as low as $158 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $416. United Airlines operates 7 flights to Toronto from Seattle in an average week. Users have rated it 7.4/10 across 8,790 reviews.
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Toronto?
It is quick and easy to find Seattle to Toronto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Toronto that suits you.
Can I find flights from Seattle to Toronto with flexible booking policies on momondo?
momondo does allow users to show only those flights to Toronto from Seattle which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Seattle to Toronto?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Toronto.
I’m not ready to book a flight from Seattle to Toronto right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seattle to Toronto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.