HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pearson Intl

$88+ Cheap flights from Seattle (SEA) to Pearson Intl (YYZ)

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Pearson Intl 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 Seattle/Tacoma Intl to Toronto Pearson Intl are usually found in January or October, booked 82 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from Seattle to Pearson Intl

Cheapest flights from Seattle to Pearson Intl
Explore the most affordable flight options available from Seattle to Pearson Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 8, 2025.

This Air Canada deal was found by Cheapflights users on 12/7. 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 12/318:10 amSEA - YYZ
Nonstop4h 43mAir Canada
Wed 1/77:50 pmYYZ - SEA
Nonstop5h 26mAir Canada
Deal found 12/7$251
This Air Canada deal was found by Cheapflights users on 12/6. 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.
Mon 12/298:10 amSEA - YYZ
Nonstop4h 43mAir Canada
Fri 1/97:50 pmYYZ - SEA
Nonstop5h 26mAir Canada
Deal found 12/6$273
This Air Canada deal was found by Cheapflights users on 12/7. 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 12/318:10 amSEA - YYZ
Nonstop4h 43mAir Canada
Tue 1/68:55 pmYYZ - SEA
2 stops15h 36mAir Canada
Deal found 12/7$284
This United Airlines deal was found by Cheapflights users on 12/6. 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.
Mon 12/2911:15 pmSEA - YYZ
1 stop16h 42mUnited Airlines
Thu 1/810:00 amYYZ - SEA
1 stop13h 57mUnited Airlines
Deal found 12/6$298
This United Airlines deal was found by Cheapflights users on 12/6. 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.
Mon 12/2911:15 pmSEA - YYZ
1 stop11h 59mUnited Airlines
Fri 1/92:45 pmYYZ - SEA
2 stops10h 58mUnited Airlines
Deal found 12/6$303
This Air Canada deal was found by Cheapflights users on 12/7. 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.
Mon 12/295:50 amSEA - YYZ
2 stops11h 56mAir Canada
Tue 1/68:55 pmYYZ - SEA
2 stops15h 36mAir Canada
Deal found 12/7$305
This Air Canada deal was found by Cheapflights users on 12/6. 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.
Sat 12/275:50 amSEA - YYZ
1 stop12h 47mAir Canada
Tue 1/610:10 pmYYZ - SEA
2 stops14h 21mAir Canada
Deal found 12/6$314
This Alaska Airlines deal was found by Cheapflights users on 12/6. 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.
Fri 12/268:00 amSEA - YYZ
Nonstop4h 35mAlaska Airlines
Sat 1/244:45 pmYYZ - SEA
Nonstop5h 32mAlaska Airlines
Deal found 12/6$316
This Air Canada deal was found by Cheapflights users on 12/6. 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.
Mon 12/298:00 pmSEA - YYZ
1 stop6h 59mAir Canada
Thu 1/87:50 pmYYZ - SEA
Nonstop5h 26mAir Canada
Deal found 12/6$329
This Expedia deal was found by Cheapflights users on 12/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:00 amSEA - YYZ
Nonstop4h 35mMultiple Airlines
Sat 1/246:30 amYYZ - SEA
1 stop11h 08mMultiple Airlines
Deal found 12/6$331

Find flight deals from Seattle to Pearson Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Pearson Intl (YYZ). 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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$251
(Air Canada)

One-way from

$88
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$596

Good round-trip deal

$488 or less

Good one-way deal

$165 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Toronto Pearson Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Toronto Pearson Intl flights.
Search Deals
From Seattle/Tacoma Intl to Toronto Pearson Intl
Search Deals
One-way flight from Seattle/Tacoma Intl to Toronto Pearson Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Toronto Pearson Intl.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Toronto Pearson Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Pearson Intl 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 December 8, 2025.
Use the filters below to find and compare flights from Seattle to Toronto Pearson Intl Airport that are best for you.

Fly from

Seattle

Fly to

Pearson Intl

Route

Depart

Return

Price

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 1/20

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Tue 1/27

4:45 pm-7:17 pm

Nonstop5h 32m

$251

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 3/6

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Sun 3/8

4:45 pm-7:18 pm

Nonstop5h 33m

$253

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 2/11

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Mon 2/16

4:45 pm-7:18 pm

Nonstop5h 33m

$262

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 3/5

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Mon 3/9

4:45 pm-7:18 pm

Nonstop5h 33m

$273

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 3/6

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Mon 3/9

4:45 pm-7:18 pm

Nonstop5h 33m

$273

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 3/22

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Tue 3/31

4:45 pm-7:05 pm

Nonstop5h 20m

$282

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 3/25

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Thu 4/16

4:45 pm-7:05 pm

Nonstop5h 20m

$282

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 1/20

8:10 am-6:57 pm

1 stop7h 47m

Toronto Pearson Intl

Tue 1/27

9:00 am-6:26 pm

2 stops12h 26m

$286

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 1/21

7:30 pm-9:58 am

2 stops11h 28m

Toronto Pearson Intl

Wed 1/28

4:10 pm-9:15 pm

1 stop8h 05m

$286

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 3/22

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Fri 4/3

4:45 pm-7:05 pm

Nonstop5h 20m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Seattle to Pearson Intl

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 Seattle to Pearson Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Seattle-Toronto Pearson Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Toronto Pearson Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Toronto Pearson Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Toronto Pearson Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Seattle-Toronto Pearson Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Pearson Intl

Have a flexible travel schedule? Discover the best time to fly to Pearson Intl from Seattle 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 Seattle to Toronto Pearson Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Pearson Intl. Price data was last updated on December 5, 2025.

The price you pay for your flight from Seattle to Toronto Pearson Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Seattle to Toronto Pearson Intl Airport (average of $121). Flying from Seattle to Toronto Pearson Intl Airport in May is currently the most expensive (average of $272). 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 SEA to YYZ?

Find hourly flight availability from Seattle to Pearson Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 8, 2025.

One of the essential ways to save on airfare from Seattle to Toronto Pearson Intl Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 77% on airfare.

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Toronto Pearson Intl Airport trip
Airlines
Alaska Airlines

Alaska's Wi-Fi is a flat fee, ideal for getting work done on longer flights.


Alaska's Premium Class offers extra legroom and free cocktails, though meals require pre-ordering.

Read more about Alaska Airlinesby Robert Schrader
Air Canada

Air Canada offers Preferred Seats with extra space, available for a fee or free for certain members.


Air Canada's in-flight entertainment includes over 2,500 hours of content, with movies in 15+ languages.

Read more about Air Canadaby Jessica Macdonald
Airports
SEA

Plan to arrive at SEA at least two hours before your flight due to potential long security lines.

Read more about SEAby Brandon Schultz
YYZ

Expect a fast customs process at YYZ, even during peak hours, when arriving from abroad.

Read more about YYZby Kaitlyn McInnis
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
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

Reviews of airlines servicing Pearson Intl

Get insights into the airlines that provide service to Pearson Intl. 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 Pearson Intl. Reviews last updated December 8, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and United Airlines from Seattle to Toronto Pearson Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,415 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,415 reviews
Alaska Airlines
8.0
Very good
11,415 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,011 reviews
Alaska Airlines
8.0
Very good
11,415 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,078 reviews
Alaska Airlines
8.0
Very good
11,415 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
WestJet
7.2
Good
3,193 reviews
Alaska Airlines
8.0
Very good
11,415 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Air Canada
7.1
Good
10,512 reviews
Alaska Airlines
8.0
Very good
11,415 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Pearson Intl. 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 from for flights from Seattle to Toronto Pearson Intl?

    If you book a flight to Toronto Pearson Intl from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 6 flights from Seattle/Tacoma Intl to Toronto Pearson Intl per day from 5 different airlines.

  • How long is the flight from Seattle to Toronto Pearson Intl Airport?

    Departing from Seattle to Toronto Pearson Intl Airport will take you 4h 40m. Airlines will cover a distance of 2054 mi. All flights are typically nonstop.

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

    Cheapflights users have booked flights from Seattle to Toronto Pearson Intl Airport round-trip from $128. Other airlines that can offer you cheap pricing are United Airlines, from $151, and Delta, from $165. Users have found that Air Canada is 68% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $83. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Seattle to Toronto Pearson Intl Airport for a low price.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Toronto Pearson Intl Airport on time: Alaska Airlines (96%), Qatar Airways (96%), Hawaiian Airlines (94%).

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

    On average you can expect to pay $1,089 for a flight from Seattle to Toronto Pearson Intl Airport. The cheapest flight overall is $111 while the most popular route, (Seattle/Tacoma Intl - Toronto Pearson Intl) is currently priced at $209.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Pearson Intl 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 Seattle to Toronto Pearson Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Seattle to Toronto Pearson Intl Airport (average of $121). Flying from Seattle to Toronto Pearson Intl Airport in May is currently the most expensive (average of $272). 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
Brampton
Kitchener
Markham
Collingwood
Oakville
Brantford
Pickering
Lindsay
Peterborough
Barrie
Cambridge
Milton
Oshawa
Burlington
Owen Sound
Ajax
Orillia
Vaughan
Richmond Hill
Gravenhurst

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.

Top 5 airlines flying from Seattle to Pearson Intl

Discover the top 5 airlines that operate flights from Seattle to Pearson Intl. 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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$151Average$431FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$173Average$380FlexibilityNo cancel feeOn-time69%
DeltaCheapest$182Average$424FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$226Average$300FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$254Average$471FlexibilityNo cancel feeOn-time75%

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.