HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$169+ Cheap flights from Pearson Intl (YYZ) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pearson Intl to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Toronto Pearson Intl to Seattle/Tacoma Intl are usually found in February or January, booked 42 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from Pearson Intl to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Pearson Intl (YYZ) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

OneTravel
3 stars

Round-trip from

$244
(FlightHub)

One-way from

$171
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$358

Good round-trip deal

$336 or less

Good one-way deal

$176 or less
Provider with most accurate pricing for Toronto Pearson Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto Pearson Intl-Seattle/Tacoma Intl flights.
Search Deals
From Toronto Pearson Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Toronto Pearson Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Toronto Pearson Intl to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Toronto Pearson Intl to Seattle/Tacoma Intl.
Search Deals

Find flight deals from Pearson Intl to Seattle

Cheapest flights from Pearson Intl to Seattle
Explore the most affordable flight options available from Pearson Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This FlightHub deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/211:30 pmYYZ - SEA
1 stop8h 40mWestJet
Wed 5/281:50 pmSEA - YYZ
1 stop7h 36mWestJet
Deal found 4/15$244
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/278:00 amYYZ - SEA
1 stop7h 58mMultiple Airlines
Thu 5/296:00 amSEA - YYZ
2 stops13h 56mMultiple Airlines
Deal found 4/15$245
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/135:50 pmYYZ - SEA
1 stop9h 09mDelta
Tue 5/2711:50 pmSEA - YYZ
1 stop8h 50mDelta
Deal found 4/14$282
This Alaska Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:45 pmYYZ - SEA
Nonstop5h 26mAlaska Airlines
Sat 9/67:24 amSEA - YYZ
Nonstop4h 36mAlaska Airlines
Deal found 4/15$286
This Air Canada deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/312:00 pmYYZ - SEA
1 stop10h 31mAir Canada
Sat 9/612:20 pmSEA - YYZ
Nonstop4h 44mAir Canada
Deal found 4/15$291
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/298:50 amYYZ - SEA
Nonstop5h 20mUnited Airlines
Tue 9/97:05 amSEA - YYZ
2 stops13h 53mUnited Airlines
Deal found 4/15$307
This American Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:45 amYYZ - SEA
1 stop21h 06mAmerican Airlines
Thu 5/151:10 amSEA - YYZ
1 stop12h 15mAmerican Airlines
Deal found 4/15$311

Cheapflights Fare Finder

Customize your flight search to find flights from Pearson Intl to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2025.
Use the filters below to find and compare flights from Toronto Pearson Intl Airport to Seattle that are best for you.

Fly from

Pearson Intl

Fly to

Seattle

Route

Depart

Return

Price

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Wed 5/21

1:30 pm-7:10 pm

1 stop8h 40m

Seattle/Tacoma Intl

Wed 5/28

1:50 pm-12:26 am

1 stop7h 36m

$244

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 5/27

8:00 am-12:58 pm

1 stop7h 58m

Seattle/Tacoma Intl

Thu 5/29

6:00 am-10:56 pm

2 stops13h 56m

$245

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 5/13

5:50 pm-11:59 pm

1 stop9h 09m

Seattle/Tacoma Intl

Tue 5/27

11:50 pm-11:40 am

1 stop8h 50m

$282

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 5/1

12:00 pm-7:37 pm

1 stop10h 37m

Seattle/Tacoma Intl

Thu 5/8

10:00 am-8:32 pm

1 stop7h 32m

$292

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 5/3

4:45 pm-6:59 pm

Nonstop5h 14m

Seattle/Tacoma Intl

Mon 5/5

7:15 am-3:00 pm

Nonstop4h 45m

$293

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 5/22

8:25 am-10:45 am

Nonstop5h 20m

Seattle/Tacoma Intl

Thu 5/29

12:35 pm-12:56 pm

2 stops21h 21m

$307

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 5/1

6:45 am-12:51 am

1 stop21h 06m

Seattle/Tacoma Intl

Thu 5/15

1:10 am-4:25 pm

1 stop12h 15m

$311

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 4/29

7:25 pm-11:35 am

1 stop19h 10m

$169

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 5/2

10:25 pm-12:58 pm

1 stop17h 33m

$171

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 5/1

12:00 pm-7:37 pm

1 stop10h 37m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 15 results
1
2

Compare providers for flights from Pearson Intl to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pearson Intl to Seattle in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
OneTravelPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Toronto Pearson Intl Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Toronto Pearson Intl Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Toronto Pearson Intl Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Toronto Pearson Intl Airport-Seattle flights, Cheapflights users trust OneTravel the most. OneTravel has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Toronto Pearson Intl Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Toronto Pearson Intl Airport to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Toronto Pearson Intl Airport to Seattle trip
Airports
YYZ

Toronto Pearson offers unlimited and easy-to-use Wi-Fi throughout the airport, perfect for staying connected before your flight.

Read more about YYZby Kaitlyn McInnis
SEA

Take the Link light rail from SEA to downtown Seattle for an affordable and convenient 40-minute journey.

Read more about SEAby Brandon Schultz
Our travel experts
Kaitlyn McInnis

Kaitlyn McInnis

Expert on YYZ

Kaitlyn McInnis

Kaitlyn McInnis

Kaitlyn is a guidebook author and travel writer splitting her time between Atlantic Canada and Istanbul, Türkiye. She has visited over fifty countries and all seven continents, so she is very familiar with many hotels, airports and airlines around the globe. But her favorite type of vacation is sunbathing by the sea with a good book in hand.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Pearson Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Pearson Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Toronto Pearson Intl Airport to Seattle

How far ahead should I book a flight from Toronto Pearson Intl Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Pearson Intl to Seattle. Price data was last updated on April 11, 2025.

To ensure you get the cheapest price possible for a flight from Toronto Pearson Intl Airport to Seattle, you should look to book at least 42 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Toronto Pearson Intl Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to Seattle (average of $238). Flying from Toronto Pearson Intl Airport to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YYZ to SEA?

Find hourly flight availability from Pearson Intl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 30% on flights from Toronto Pearson Intl Airport to Seattle by exploring options for tickets in the evening.

What is the cheapest day to fly from Toronto Pearson Intl Airport to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Pearson Intl to Seattle. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Toronto Pearson Intl Airport to Seattle flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Toronto Pearson Intl Airport to Seattle

Explore weekly flight availability from Pearson Intl to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 15, 2025.

The most flights from YYZ to SEA are scheduled on a Monday (5 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated April 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Toronto to Seattle to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,876 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
WestJet
7.2
Good
2,805 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Pearson Intl to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Toronto Pearson Intl?

    For a flight from Toronto Pearson Intl to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 4 inbound flights from Toronto Pearson Intl per day. 6 airlines have flights to Seattle/Tacoma Intl from Toronto Pearson Intl on a regular basis.

  • What are the cheapest airlines flying from Toronto Pearson Intl Airport to Seattle round-trip?

    According to our current data, WestJet ($244), Alaska Airlines ($286), and Air Canada ($292) offers the cheapest pricing from Toronto Pearson Intl Airport to Seattle. You may be able to fly from Toronto Pearson Intl Airport to Seattle for 35% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Toronto Pearson Intl Airport to Seattle one-way?

    $172 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on WestJet and Delta, with prices starting from $174 and $176, respectively.

  • What are the most reliable airlines from Toronto Pearson Intl Airport to Seattle?

    Before booking your flight to Seattle from Toronto Pearson Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Tahiti Nui (99%), Alaska Airlines (85%), Hawaiian Airlines( 85%).

  • What are the cheapest flights from Toronto Pearson Intl Airport to Seattle?

    Looking for the cheapest flight from Toronto Pearson Intl Airport to Seattle? While on average our users pay $349, our data indicates the cheapest price to be $154. The most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl), is priced around $274.

  • Can I find deals for flights from Pearson Intl to Seattle that include hotel bookings?

    Yes. In addition to deals on Pearson Intl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pearson Intl to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pearson Intl to Seattle.

  • Can I find deals for business class flights from Pearson Intl to Seattle?

    Yes. Cheapflights offers flight deals from Pearson Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Toronto Pearson Intl Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to Seattle (average of $238). Flying from Toronto Pearson Intl Airport to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Toronto Pearson Intl Airport?

Book flights to Toronto Pearson Intl Airport if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Renton
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Aberdeen
Kent
Lynnwood
Shelton
Silverdale
Redmond
Issaquah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pearson Intl to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Portland flights
Region of Waterloo Intl to Seattle flights
Hamilton to Portland flights
Pearson Intl to Spokane flights
Toronto Island to Portland flights

Top 6 airlines flying from Pearson Intl to Seattle

Discover the top 6 airlines that operate flights from Pearson Intl to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$238Average$383FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$239Average$412FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$240Average$407FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$250Average$455FlexibilityNo cancel feeOn-time67%
DeltaCheapest$292Average$421FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$393Average$653FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.