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CA $228 Cheap Flights from Seattle (SEA) to Toronto (YYZ)

View CA $228 flight on Sun, Sep 13, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at CA $228 for one-way flights and CA $523 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Fri, Sep 25 - Wed, Oct 28
SEA
Seattle
YYZ
Toronto
CA $523 Roundtrip, found 2 days ago
CA $523
Roundtrip
found 2 days ago
Select WestJet flight, departing Fri, Sep 25 from Seattle to Toronto, returning Wed, Oct 28, priced at CA $523 found 2 days ago
WestJet
Fri, Sep 25 - Sat, Sep 26
SEA
Seattle
YYZ
Toronto
CA $528 Roundtrip, found 2 days ago
CA $528
Roundtrip
found 2 days ago
Select WestJet flight, departing Fri, Sep 25 from Seattle to Toronto, returning Sat, Sep 26, priced at CA $528 found 2 days ago
WestJet
Sun, Sep 20 - Tue, Sep 29
SEA
Seattle
YYZ
Toronto
CA $529 Roundtrip, just found
CA $529
Roundtrip
just found
Select WestJet flight, departing Sun, Sep 20 from Seattle to Toronto, returning Tue, Sep 29, priced at CA $529 just found
American Airlines
Wed, Sep 9 - Tue, Sep 22
SEA
Seattle
YYZ
Toronto
CA $560 Roundtrip, found 3 days ago
CA $560
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 9 from Seattle to Toronto, returning Tue, Sep 22, priced at CA $560 found 3 days ago
WestJet
Fri, Sep 11 - Sat, Sep 12
SEA
Seattle
YYZ
Toronto
CA $571 Roundtrip, found 4 days ago
CA $571
Roundtrip
found 4 days ago
Select WestJet flight, departing Fri, Sep 11 from Seattle to Toronto, returning Sat, Sep 12, priced at CA $571 found 4 days ago
WestJet
Wed, Oct 14 - Wed, Oct 21
SEA
Seattle
YYZ
Toronto
CA $572 Roundtrip, found 4 days ago
CA $572
Roundtrip
found 4 days ago
Select WestJet flight, departing Wed, Oct 14 from Seattle to Toronto, returning Wed, Oct 21, priced at CA $572 found 4 days ago
Delta
Sat, Sep 19 - Tue, Sep 22
SEA
Seattle
YYZ
Toronto
CA $576 Roundtrip, found 14 hours ago
CA $576
Roundtrip
found 14 hours ago
Select Delta flight, departing Sat, Sep 19 from Seattle to Toronto, returning Tue, Sep 22, priced at CA $576 found 14 hours ago
WestJet
Wed, Sep 30 - Thu, Oct 8
SEA
Seattle
YYZ
Toronto
CA $578 Roundtrip, found 3 days ago
CA $578
Roundtrip
found 3 days ago
Select WestJet flight, departing Wed, Sep 30 from Seattle to Toronto, returning Thu, Oct 8, priced at CA $578 found 3 days ago
Alaska Airlines
Sat, Oct 24 - Sat, Oct 31
SEA
Seattle
YYZ
Toronto
CA $675 Roundtrip, found 3 days ago
CA $675
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Oct 24 from Seattle to Toronto, returning Sat, Oct 31, priced at CA $675 found 3 days ago
United
Sat, Sep 12 - Sat, Sep 19
SEA
Seattle
YYZ
Toronto
CA $725 Roundtrip, found 4 hours ago
CA $725
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Sep 12 from Seattle to Toronto, returning Sat, Sep 19, priced at CA $725 found 4 hours ago

Alternative airports near Toronto

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

Select flight to Billy Bishop Toronto City YTZ. Closest option available. Average driving time to city centre is 4 minutes. Flights from CA $1,281
YTZ
Billy Bishop Toronto City
Closest
Average driving time to city centre4 min
Flights from CA $1,281

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

November is typically the cheapest month to fly

From CA $524 - CA $764 per traveller.

Frequently asked questions

How much does a flight from Seattle, WA (SEA) to Toronto, ON (YYZ) cost?
You can find one-way and return flights from Seattle, WA (SEA) to Toronto, ON (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 SEA to YYZ ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
September is typically the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.), with average return fares around CA$505. September often sees lower prices as the peak summer travel season winds down, and before the holiday rush begins. January and November are also good months to find deals on this route.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
Only one airline offers direct flights from Seattle - Tacoma Intl. (SEA) to Toronto, ON (YYZ-Pearson Intl.). Air Canada operates 7 direct flights from Seattle - Tacoma Intl. to Toronto, ON every week.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
Alaska Airlines is one of the cheapest airlines offering nonstop return flights from Seattle - Tacoma Intl. (SEA) to Toronto, ON (YYZ-Pearson Intl.), with tickets starting from around CA$340 for flights that can be booked for departure within the next year. JetBlue Airways offers one of the cheapest connecting return flights on this route, starting from around CA$727. These prices are per adult for economy/coach class. 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 Seattle, WA (SEA) to Toronto, ON (YYZ)?
To find a cheap flight from Seattle, WA (SEA) to Toronto, ON (YYZ), 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
The best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson 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. United offers the most daily flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
The cheapest months to fly from Seattle-Tacoma International Airport (SEA) to Toronto Pearson International Airport (YYZ) are typically September and January, with average return flights around CA$505. While these months offer great value, the most popular times to travel are July and December. If you're looking for a balance between good prices and plenty of flight options, you might consider September, as it's one of the cheapest months and still offers a good selection of flights before the peak holiday travel season.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
You'll find around 1 nonstop flight per day from Seattle - Tacoma Intl. (SEA) to Pearson Intl. (YYZ). For even more choices, look at flights that include layovers, as there are approximately 113 connecting flights per day. Some common connection points include Vancouver Intl. (YVR), O'Hare Intl. (ORD), and Calgary Intl. (YYC).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to Pearson Intl. (YYZ) typically departs around 12:05 AM local time. This flight is operated by American Airlines. This is a seasonal service, active in February and March. 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
You'll generally find the most flights from Seattle - Tacoma Intl. (SEA) to Pearson Intl. (YYZ) on a Thursday, with around 68 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Delta, and Alaska Airlines. Flight schedules are quite consistent throughout the week, so you'll have plenty of choices no matter which day you choose to fly.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Pearson Intl. (YYZ) are in the morning, between 6am and 9am. Many major carriers, including Alaska Airlines, Air Canada and United, offer flights during this window. Many travellers prefer these early morning flights as they allow you to arrive at your destination with plenty of time to settle in or start your day.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
A non-stop flight from Seattle - Tacoma Intl. (SEA) to Toronto, ON (YYZ-Pearson Intl.) typically takes around 4 hours 48 minutes. This route covers a distance of approximately 3,307 kilometres. If you opt for a one-stop flight, your travel time will be longer, usually around 9 hours 48 minutes, including the layover. Flights with two or more stops will take even longer, with a typical duration of about 12 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.)?
Yes, you can fly business class or first class between SEA and YYZ. Airlines that offer business class service on this route include:
  • Air Canada
  • American Airlines
  • Alaska Airlines
  • Delta
First class cabins are available on:
  • Delta
  • Air Canada
  • Alaska Airlines
  • United
How do I earn miles on a Seattle, WA (SEA) to Toronto, ON (YYZ) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA) to Toronto, ON (YYZ) 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 Toronto, ON (YYZ) from Seattle, WA (SEA)?
If you're planning to travel to Toronto from Seattle - Tacoma Intl. (SEA), you can fly directly into Pearson Intl. (YYZ). Some flights may connect through major hubs like Vancouver Intl. (YVR), Portland Intl. (PDX), or Calgary Intl. (YYC) before reaching Toronto. 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Toronto, ON (YYZ-Pearson 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 Seattle, WA (SEA) to Toronto, ON (YYZ)?
If you booked your Seattle, WA (SEA) to Toronto, ON (YYZ) 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
Seattle - Tacoma Intl.
Destination airport
Pearson Intl.
Airlines serving
Air Canada, Alaska Airlines, American Airlines, Delta, United, WestJet
Roundtrip price
CA $523
Distance
3288 km
Average flight time
7 hours 42 mins

Book with confidence

Seattle to Toronto Flights

The easy way to book your flights from Seattle to Toronto 

With Expedia, it’s simple to find and book flights to Toronto from Seattle 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 Pearson 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 Seattle to Toronto today, tomorrow, or this week.  

 

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

Sort your search results by price to find great deals on your flight from Seattle to Toronto—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Toronto from Seattle currently is just CA $523 rising to CA $725.  

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 Toronto  
  • 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 Toronto from Seattle 

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 Toronto with Expedia today.

Seattle to Toronto Flights

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