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CA $246 Cheap Flights from Toronto (YYZ) to Seattle (SEA)

View CA $246 flight on Thu, Sep 10, 2026Opens in a new window

Popular airlines from Toronto Pearson Intl. Airport (YYZ) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Toronto (YYZ) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $246 for one-way flights and CA $419 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Wed, Sep 23 - Thu, Sep 24
YYZ
Toronto
SEA
Seattle
CA $419 Roundtrip, just found
CA $419
Roundtrip
just found
Select WestJet flight, departing Wed, Sep 23 from Toronto to Seattle, returning Thu, Sep 24, priced at CA $419 just found
WestJet
Thu, Oct 29 - Sun, Nov 1
YYZ
Toronto
SEA
Seattle
CA $471 Roundtrip, just found
CA $471
Roundtrip
just found
Select WestJet flight, departing Thu, Oct 29 from Toronto to Seattle, returning Sun, Nov 1, priced at CA $471 just found
WestJet
Thu, Sep 10 - Mon, Sep 14
YYZ
Toronto
SEA
Seattle
CA $477 Roundtrip, just found
CA $477
Roundtrip
just found
Select WestJet flight, departing Thu, Sep 10 from Toronto to Seattle, returning Mon, Sep 14, priced at CA $477 just found
WestJet
Wed, Sep 23 - Tue, Sep 29
YYZ
Toronto
SEA
Seattle
CA $486 Roundtrip, found 1 hour ago
CA $486
Roundtrip
found 1 hour ago
Select WestJet flight, departing Wed, Sep 23 from Toronto to Seattle, returning Tue, Sep 29, priced at CA $486 found 1 hour ago
WestJet
Wed, Sep 30 - Sat, Oct 3
YYZ
Toronto
SEA
Seattle
CA $497 Roundtrip, found 1 hour ago
CA $497
Roundtrip
found 1 hour ago
Select WestJet flight, departing Wed, Sep 30 from Toronto to Seattle, returning Sat, Oct 3, priced at CA $497 found 1 hour ago
WestJet
Wed, Sep 23 - Wed, Nov 25
YYZ
Toronto
SEA
Seattle
CA $504 Roundtrip, found 1 hour ago
CA $504
Roundtrip
found 1 hour ago
Select WestJet flight, departing Wed, Sep 23 from Toronto to Seattle, returning Wed, Nov 25, priced at CA $504 found 1 hour ago
Alaska Airlines
Tue, Sep 22 - Fri, Sep 25
YYZ
Toronto
SEA
Seattle
CA $579 Roundtrip, just found
CA $579
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Sep 22 from Toronto to Seattle, returning Fri, Sep 25, priced at CA $579 just found
Delta
Sat, Oct 24 - Sun, Nov 1
YYZ
Toronto
SEA
Seattle
CA $580 Roundtrip, just found
CA $580
Roundtrip
just found
Select Delta flight, departing Sat, Oct 24 from Toronto to Seattle, returning Sun, Nov 1, priced at CA $580 just found
Air Canada
Wed, Nov 4 - Wed, Nov 11
YYZ
Toronto
SEA
Seattle
CA $660 Roundtrip, just found
CA $660
Roundtrip
just found
Select Air Canada flight, departing Wed, Nov 4 from Toronto to Seattle, returning Wed, Nov 11, priced at CA $660 just found
American Airlines
Sat, Sep 19 - Wed, Sep 23
YYZ
Toronto
SEA
Seattle
CA $668 Roundtrip, found 1 hour ago
CA $668
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Sep 19 from Toronto to Seattle, returning Wed, Sep 23, priced at CA $668 found 1 hour ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from CA $718
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from CA $718

Find the cheapest month to fly from Toronto (YYZ) to Seattle (SEA)

November is typically the cheapest month to fly

From CA $445 - CA $672 per traveller.

Frequently asked questions

How much does a flight from Toronto, ON (YYZ) to Seattle, WA (SEA) cost?
Seattle, WA (SEA) to YYZ with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when YYZ to SEA ticket fares go up or down.
What is the cheapest month to fly from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from YYZ to SEA are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Only one airline offers direct flights from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Air Canada operates 7 direct flights from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) every week.
What is the cheapest airline that flies from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Air Canada is one of the cheapest airlines offering nonstop return flights from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with tickets starting from around CA$254 for flights that can be booked for departure within the next year. For connecting flights, Sun Country Airlines is one of the cheapest, with return tickets starting from around CA$673. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Toronto, ON (YYZ) to Seattle, WA (SEA)?
To find a cheap flight from Toronto, ON (YYZ) to Seattle, WA (SEA), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. Air Canada offers the most daily flights from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 139 connecting flights per day from Toronto Pearson International (YYZ) to Seattle-Tacoma International (SEA). Some common connection points include O'Hare International (ORD), Calgary International (YYC), and Vancouver International (YVR).
What is the earliest flight from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs around 12:30 AM local time. This service is operated by Air Canada. This is a seasonal service active in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you're flying from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), you'll generally find the most flights on a Friday, with around 91 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Air Canada, United, and American Airlines. Friday offers notably more flight options compared to other days of the week, making it a great day to find a flight that suits your schedule.
What are the most popular departure times for flights from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the morning, from 6am to 9am. Many major carriers, including Air Canada, Delta and United, offer flights during this window. Many travellers prefer this because it allows for an early start to their journey, giving them more time to settle in at their destination.
How long does it take to fly from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A nonstop flight from Toronto Pearson International Airport (YYZ) to Seattle-Tacoma International Airport (SEA) typically takes around 5 hours 30 minutes. This route covers a distance of approximately 3307 kilometres. If you opt for a one-stop flight, your travel time will be longer, usually around 9 hours 18 minutes, while flights with two or more stops generally take about 13 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Yes, you can fly business class or first class between YYZ and SEA.Airlines that offer business class service on this route include:
  • Alaska Airlines
  • Air Canada
  • Delta
  • American Airlines
First class cabins are available on:
  • Alaska Airlines
  • Air Canada
  • Delta
  • Skywest Air
  • United
  • American Airlines
How much is a business class flight from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct, return business class ticket from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically costs between CA$1,937 - CA$2,700. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) if you opt for a connecting flight.
How do I earn miles on a Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Toronto, ON (YYZ)?
If you're planning to travel to Seattle from Pearson Intl. (YYZ), you can fly directly into Seattle - Tacoma Intl. (SEA). Some flights may connect through major hubs like Edmonton Intl. (YEG), Calgary Intl. (YYC), or Macdonald-Cartier Intl. (YOW) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Toronto, ON (YYZ-Pearson Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Toronto, ON (YYZ) to Seattle, WA (SEA)?
If you booked your Toronto, ON (YYZ) to Seattle, WA (SEA) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Pearson Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Alaska Airlines, American Airlines, Delta, United, WestJet
Roundtrip price
CA $418
Distance
3288 km
Average flight time
2 hours 20 mins

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Toronto to Seattle Flights

The easy way to book your flights from Toronto to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Toronto whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Toronto to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from Pearson Intl., YYZ to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Toronto to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Toronto currently is just CA $419 rising to CA $668.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Toronto 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Toronto to Seattle Flights

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