Cheap flights from Seattle to Toronto from C$ 127
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 25/7. 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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Air Canada flights from Seattle to Toronto Pearson Intl Airport
Our best Air Canada deals on Seattle to Toronto Pearson Intl Airport flight tickets
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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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?
If you aren’t able to travel during the month of January, then book flights to Toronto Pearson Intl Airport from Seattle during March instead. Flights to Toronto Pearson Intl Airport in March, while not as cheap as those in January, still average around C$ 432.
What is the cheapest day to depart on your flight to Toronto Pearson Intl Airport?
Our data shows that Thursday is the least expensive day to fly to Toronto Pearson Intl Airport. Tickets to fly out on this day can be as low as C$ 683. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Toronto Pearson Intl Airport for around C$ 1,265.
What is the cheapest time of day to depart on your flight to Toronto Pearson Intl Airport?
Our data shows that the cheapest Seattle to Toronto Pearson Intl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Toronto Pearson Intl Airport in the afternoon for as low as C$ 473. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 1,052 on average. Flights to Toronto Pearson Intl Airport from Seattle in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.
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 24 weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around C$ 580 when searching 24 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 C$ 399 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Toronto Pearson Intl flights?
There are 3 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 17% 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 2025, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 13% 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
Which 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 48% of people opting to fly with this airline when travelling to Toronto Pearson Intl Airport. Keep in mind that there are 3 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?
5 flights are operational daily from Seattle to Toronto Pearson Intl Airport as of June 2025. The most popular departure time for this route is 11:00a.m., with 100% of flights per day taking off at noon.
How many flights depart from Seattle to Toronto Pearson Intl Airport on average per week?
As of June 2025, there are 36 flights per week flying from Seattle to Toronto Pearson Intl Airport. 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 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?
The distance between Seattle/Tacoma Intl and Toronto Pearson Intl is about 3304.6 km. 4h 39m is a normal flight duration for this route.
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 3 operators available for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport?
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 Pearson Intl Airport.
What documentation or ID do you need to fly to Toronto Pearson Intl Airport?
The travel and health documents required for your trip to Toronto Pearson Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Toronto Pearson Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Seattle to Toronto Pearson Intl Airport?
Based on momondo bookings for flights between Seattle and Toronto Pearson Intl Airport, 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 Pearson Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Toronto Pearson Intl Airport is Alaska Airlines (48% of total bookings). The next most popular airlines are Air Canada (41%) and WestJet (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 | ||
|---|---|---|---|---|---|
| PriceFrom C$ 189 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom C$ 294 | Free Cancellation | Rating 7.2 2,868 reviews | |||
| PriceFrom C$ 388 | Free Cancellation | Rating 8.0 10,000 reviews |
Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport
Alaska Airlines operates around 4 flights from Seattle to Toronto Pearson Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 498, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as C$ 284 round-trip. Alaska Airlines has been scored 8.0/10 in 10,000 reviews.
Air Canada Flights From Seattle to Toronto Pearson Intl Airport
Air Canada (7.1/10 from 9,531 reviews) operates around 7 flights from Seattle to Toronto Pearson Intl Airport in any given week. The average Air Canada airfare for this route is around C$ 513, with deals from around C$ 138 rare but found on momondo. Referenced prices are for round-trip Seattle to Toronto Pearson Intl Airport flight searches in the last 72 hours.
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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?
Flights from Seattle to Toronto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
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?
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.