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Cheap flights from Seattle to Toronto Pearson Intl Airport from C$ 189

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 18/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Toronto Pearson Intl are usually found in January or February, booked 70 days in advance, depart on a Sunday or Thursday and return on a Thursday

Cheap 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 25 March 2025.

Round-trip from

C$ 355

One-way from

C$ 189

Popular in

April

Cheapest in

January

Average price

C$ 524

Good round-trip deal

C$ 441 or less

Good one-way deal

C$ 239 or less
WestJet
  • WestJet
  • 15/4-22/4
  • 3 total stops
  • 24h 13m total
  • Seattle to Toronto
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18/4
  • 18/4
  • 2 total stops
  • 32h 03m total
  • Seattle to Toronto
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Highest demand for flights based on searches. 8% potential increase in price (C$ 82 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 30 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Toronto Pearson Intl.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Toronto Pearson Intl.
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Find 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 25 March 2025.

Tue 15/412:30 p.m.SEA - YYZ
2 stops14h 47mMultiple Airlines
Tue 22/47:55 a.m.YYZ - SEA
1 stop9h 26mMultiple Airlines
Deal found 24/3C$ 355
Sat 2/81:50 p.m.SEA - YYZ
1 stop7h 34mWestJet
Wed 13/88:00 a.m.YYZ - SEA
1 stop7h 58mWestJet
Deal found 24/3C$ 418
Wed 7/511:40 a.m.SEA - YYZ
Nonstop4h 57mAir Canada
Wed 14/58:30 a.m.YYZ - SEA
Nonstop5h 21mAir Canada
Deal found 24/3C$ 446
Sun 20/47:20 a.m.SEA - YYZ
Nonstop4h 40mHawaiian Airlines
Wed 30/44:45 p.m.YYZ - SEA
Nonstop5h 14mHawaiian Airlines
Deal found 24/3C$ 527
Thu 17/411:59 p.m.SEA - YYZ
1 stop11h 35mAmerican Airlines
Fri 18/45:20 p.m.YYZ - SEA
1 stop8h 39mAmerican Airlines
Deal found 25/3C$ 531
Thu 24/47:15 a.m.SEA - YYZ
Nonstop4h 45mAlaska Airlines
Tue 29/44:45 p.m.YYZ - SEA
Nonstop5h 14mAlaska Airlines
Deal found 24/3C$ 537
Thu 22/511:40 a.m.SEA - YYZ
Nonstop4h 57mUnited Airlines
Wed 28/58:30 a.m.YYZ - SEA
Nonstop5h 21mUnited Airlines
Deal found 24/3C$ 546
Sun 25/511:50 p.m.SEA - YYZ
1 stop8h 50mDelta
Wed 28/55:50 p.m.YYZ - SEA
1 stop9h 09mDelta
Deal found 23/3C$ 549

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 629,999 searches. Data last updated 25 March 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 15/4

12:30 p.m.-6:17 a.m.

2 stops14h 47m

Toronto Pearson Intl

Tue 22/4

7:55 a.m.-2:21 p.m.

1 stop9h 26m

C$ 355

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 2/8

1:50 p.m.-12:24 a.m.

1 stop7h 34m

Toronto Pearson Intl

Wed 13/8

8:00 a.m.-12:58 p.m.

1 stop7h 58m

C$ 418

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 7/5

11:40 a.m.-7:37 p.m.

Nonstop4h 57m

Toronto Pearson Intl

Wed 14/5

8:30 a.m.-10:51 a.m.

Nonstop5h 21m

C$ 446

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 20/4

7:20 a.m.-3:00 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Wed 30/4

4:45 p.m.-6:59 p.m.

Nonstop5h 14m

C$ 527

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 17/4

11:59 p.m.-2:34 p.m.

1 stop11h 35m

Toronto Pearson Intl

Fri 18/4

5:20 p.m.-10:59 p.m.

1 stop8h 39m

C$ 531

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 24/4

7:15 a.m.-3:00 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Tue 29/4

4:45 p.m.-6:59 p.m.

Nonstop5h 14m

C$ 537

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 22/5

11:40 a.m.-7:37 p.m.

Nonstop4h 57m

Toronto Pearson Intl

Wed 28/5

8:30 a.m.-10:51 a.m.

Nonstop5h 21m

C$ 546

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 25/5

11:50 p.m.-11:40 a.m.

1 stop8h 50m

Toronto Pearson Intl

Wed 28/5

5:50 p.m.-11:59 p.m.

1 stop9h 09m

C$ 549

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 18/4

12:30 p.m.-11:33 p.m.

2 stops32h 03m

C$ 189

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 6/7

7:35 p.m.-6:12 a.m.

1 stop7h 37m

C$ 199

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/3

Showing 1-10 of 15 results
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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 21 March 2025.

The best time to book flights from Seattle to Toronto Pearson Intl Airport is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Toronto Pearson Intl Airport (average of C$ 167). Flying from Seattle to Toronto Pearson Intl Airport in July is currently the most expensive (average of C$ 258). 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 25 March 2025.

It’s optimal to fly from Seattle to Toronto Pearson Intl Airport in the afternoon. By choosing this option you can save up to 59% on the cost of your flight, compared to a flight in the morning.

Rainfall in Pearson Intl by month

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

In terms of precipitation, rainfall in Toronto Pearson Intl Airport ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Toronto Pearson Intl Airport when rainfall is around 51.0 mm.

Temperature in Pearson Intl by month

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

If weather is an important factor for your trip to Toronto Pearson Intl Airport, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 25 March 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Hawaiian Airlines from Seattle to Toronto by reading reviews from past customers. 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
9,789 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,789 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,330 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,789 reviews
Check prices

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Toronto Pearson Intl. On average, Seattle/Tacoma Intl has 4 outbound flights to Toronto Pearson Intl per day from 3 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

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

    Flying on WestJet is currently your cheapest option to Toronto Pearson Intl Airport, with prices starting at C$ 418. Additional round-trip tickets that might be worth considering are offered by Air Canada and Hawaiian Airlines, with the lowest prices starting at C$ 446 and C$ 527, respectively. WestJet is priced at 35% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as C$ 199 on WestJet. Other airlines that offer cheap prices include Delta from C$ 219 and Alaska Airlines from C$ 231 one-way.

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

    Consider Air Tahiti Nui (100%), Alaska Airlines (90%) or Hawaiian Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Toronto Pearson Intl Airport.

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

    Looking at all options, your cheapest flight can be booked for C$ 222. While the most popular route (Seattle/Tacoma Intl - Toronto Pearson Intl) can be booked for C$ 368 on average our data indicates C$ 599 when flying from Seattle to Toronto Pearson Intl Airport.

  • 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, January is the cheapest month in which you can book a flight from Seattle to Toronto Pearson Intl Airport (average of C$ 167). Flying from Seattle to Toronto Pearson Intl Airport in July is currently the most expensive (average of C$ 258). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Brampton
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Alternative routes for Seattle to Pearson Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Seattle to Pearson Intl

Discover the top 3 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 629,999 searches. Data last updated 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 233AverageC$ 844FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 308AverageC$ 432FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 396AverageC$ 693FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to Pearson Intl?

Deals for Seattle to Pearson Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Pearson Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Pearson Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Seattle to Pearson Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Seattle to Pearson Intl with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Pearson Intl become cheaper?

Of course! You can now track prices for flights from Seattle to Pearson Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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