Cheap flights from Toronto Pearson Intl Airport to Seattle from C$ 179
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Toronto Pearson Intl Airport to Seattle departing on 4/7. 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 Toronto Pearson Intl Airport to Seattle
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United Airlines flights from Toronto Pearson Intl Airport to Seattle
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How to get the cheapest flight ticket from Toronto Pearson Intl Airport to Seattle
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 Seattle?
If you aren’t able to travel to Seattle during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 381.
What is the cheapest day to depart on your flight to Seattle?
Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 551. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 720. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.
What is the cheapest time of day to depart on your flight to Seattle?
Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Toronto Pearson Intl Airport to Seattle during this time can be as low as C$ 506. Flights in the morning are often more expensive with an average ticket price of C$ 770.
What is the cheapest Toronto Pearson Intl to Seattle/Tacoma Intl flight route?
Fly from Toronto Pearson Intl to Seattle/Tacoma Intl for the best Toronto Pearson Intl - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Toronto Pearson Intl Airport when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 496 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Toronto Pearson Intl Airport for as low as C$ 431 on momondo.
What cabin class options are available on Toronto Pearson Intl to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on Toronto Pearson Intl to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Toronto Pearson Intl to Seattle/Tacoma Intl?
WestJet, Alaska Airlines, and Air Canada are the most popular carriers operating from Toronto Pearson Intl to Seattle/Tacoma Intl
Which airlines fly to Seattle?
Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Seattle from Toronto Pearson Intl Airport according to our data. Alaska Airlines is the first choice among our users, with 37% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Toronto Pearson Intl Airport to Seattle on average per day?
The number of flights available between Toronto Pearson Intl Airport and Seattle is 4 per day as of June 2025. The most frequent departure time is 8:00a.m., with 64% of daily flights leaving at noon.
How many flights depart from Toronto Pearson Intl Airport to Seattle on average per week?
The number of flights available between Toronto Pearson Intl Airport and Seattle is 29 per week as of June 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.
When to book flights from Toronto Pearson Intl Airport to Seattle
Cheap Toronto Pearson Intl Airport to Seattle (YYZ to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Toronto Pearson Intl Airport to Seattle
How far is Toronto Pearson Intl to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 3304.6 km away from Toronto Pearson Intl. A reasonable flight in good conditions will take 5h 19m.
When did momondo last update prices for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?
There are 6 operators available for flights from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport as of June 2025.
How old do you have to be to fly from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma 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 Seattle/Tacoma 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 Toronto Pearson Intl Airport to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Toronto Pearson Intl Airport to Seattle is Airbus A220-300, representing 47.30% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 23.98%, Boeing 737-900 Passenger/BBJ3 (winglets) at 10.56%, and Embraer 195 E2 at 4.61%.
What is the most popular airline from Toronto Pearson Intl Airport to Seattle?
Based on momondo bookings for flights between Toronto Pearson Intl Airport and Seattle, the leading airline is Alaska Airlines, making up 36% of the total bookings. Other popular airlines include Air Canada with 33%, WestJet with 22%, and United Airlines with 6%.
Best airlines flying from Toronto Pearson Intl Airport to Seattle
Compare and see reviews for airlines that fly from Toronto Pearson Intl Airport to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 307 | Free Cancellation | Rating 7.2 2,868 reviews | |||
| PriceFrom C$ 328 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom C$ 358 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom C$ 359 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom C$ 369 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom C$ 407 | Free Cancellation | Rating 7.8 2,494 reviews |
Alaska Airlines Flights From Toronto Pearson Intl Airport to Seattle
Alaska Airlines flies from Toronto Pearson Intl Airport to Seattle around 2 times per week, with 10,000 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Toronto Pearson Intl Airport to Seattle in the last 72 hours was C$ 240 (round-trip), much lower than the average airfare cost of C$ 367 for Alaska Airlines flights on this route.
Hawaiian Airlines Flights From Toronto Pearson Intl Airport to Seattle
Hawaiian Airlines is also a popular choice for this route. Hawaiian Airlines flight deals for Toronto Pearson Intl Airport to Seattle start from as low as C$ 297 round-trip, depending on your selected dates, with average Hawaiian Airlines deals seen on momondo around C$ 336. Hawaiian Airlines operates 7 flights to Seattle from Toronto Pearson Intl Airport in an average week. Users have rated it 7.8/10 across 2,494 reviews.
Travelling to a place near Seattle?
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Why should I use momondo to find a flight deal from Toronto to Seattle?
It is quick and easy to find Toronto to Seattle 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 Seattle that suits you.
Can I find flights from Toronto to Seattle with flexible booking policies on momondo?
Flights from Toronto to Seattle 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 Toronto to Seattle?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Toronto.
I’m not ready to book a flight from Toronto to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Toronto to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.