Q: How much does it cost to fly round-trip from Toronto Pearson Intl Airport to Seattle?

Airfare is below average for this route at the moment. Toronto Pearson Intl Airport to Seattle flights typically cost between C$ 285 and C$ 398 in March. The cheapest round-trip price found within the last 3 days was C$ 284 on Alaska Airlines (7 Mar-14 Mar).

Question 1

Which airline has the best punctuality record on Toronto to Seattle flights?

Accepted Answer

Over the past year, Alaska Airlines has had the lowest number of delays on this route, with just 11% of flights being delayed.

Question 2

What’s the cheapest layover airport for flights from Toronto Pearson Intl Airport to Seattle?

Accepted Answer

Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 408.

Question 3

What’s the fastest layover option from Toronto Pearson Intl Airport to Seattle?

Accepted Answer

Flights via Vancouver (YVR) have the shortest average one-way travel time for 1-stop routes: 7h 48m.

Question 4

How much does it cost to fly round-trip from Toronto Pearson Intl Airport to Seattle?

Accepted Answer

Airfare is below average for this route at the moment.Toronto Pearson Intl Airport to Seattle flights typically cost between C$ 285 and C$ 398 in March.
The cheapest round-trip price found within the last 3 days was C$ 284 on Alaska Airlines (7 Mar-14 Mar).

Question 5

Which airport typically offers the quickest layover for flights from Toronto Pearson Intl Airport to Seattle?

Accepted Answer

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 01m.

Question 6

What is the most punctual flight time for Toronto to Seattle flights?

Accepted Answer

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

Question 7

What’s the top layover airport for flights from Toronto Pearson Intl Airport to Seattle?

Accepted Answer

Calgary (YYC) – chosen by Cheapflights users on 68% of one-stop itineraries from Toronto Pearson Intl Airport to Seattle on Cheapflights.

Question 8

How often are flights from Toronto to Seattle delayed?

Accepted Answer

About 23% of weekly flights between Toronto and Seattle have experienced delays in the past year, with the average delay time being 160 minutes.

Question 9

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Question 10

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

Accepted Answer

There are many flights that can get you from Toronto Pearson Intl Airport to Seattle in 5h 33m. Fly via Alaska Airlines or WestJet to get the fastest option. Toronto Pearson Intl Airport and Seattle are separated by a distance of 3306 km. This flight may include one or multiple stops.

Question 11

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

Accepted Answer

According to our current data, Delta (C$ 249), Alaska Airlines (C$ 269), and WestJet (C$ 273) offers the cheapest pricing from Toronto Pearson Intl Airport to Seattle. Delta is 47% cheaper than the average price of flights available within the next 90 days to this destination.

Question 12

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

Accepted Answer

The cheapest airlines for a one-way flight from Toronto Pearson Intl Airport to Seattle are Alaska Airlines (C$ 169), WestJet (C$ 175), and Delta (C$ 221).

Question 13

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

Accepted Answer

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Toronto Pearson Intl Airport to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 14

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

Accepted Answer

Currently, December is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to Seattle (average of C$ 178). Flying from Toronto Pearson Intl Airport to Seattle in July is currently the most expensive (average of C$ 320). 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.

Question 15

Weekly flight availability from Toronto Pearson Intl Airport to Seattle

Accepted Answer

The most flights from YYZ to SEA are scheduled on a Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

Question 16

E

Accepted Answer

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Question 17

E

Accepted Answer

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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Question 18

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

Accepted Answer

The cheapest flight price from Toronto Pearson Intl Airport to Seattle is C$ 160. On average you can expect to pay C$ 800. The most popular route, (Toronto Pearson Intl - Seattle/Tacoma Intl), can usually be booked for C$ 303.

Question 19

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

Accepted Answer

Consider Qatar Airways (79%), Alaska Airlines (59%) or Hawaiian Airlines (59%) when booking your flight. These represent the most reliable airlines when flying from Toronto Pearson Intl Airport to Seattle.

Question 20

What are the most popular airlines that fly from Toronto Pearson Intl Airport to Seattle?

Accepted Answer

Before booking your flight from Toronto Pearson Intl Airport to Seattle check out the most popular airlines for this route: Alaska Airlines, Air Canada or WestJet.

Question 21

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

Accepted Answer

When flying from Toronto Pearson Intl Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 22

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

Accepted Answer

Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Toronto Pearson Intl to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Toronto Pearson Intl; the airport handles an average of 6 inbound flights from Toronto Pearson Intl per day. You should also have plenty of airline options to choose from since 6 airlines have flights to the Seattle airport from Toronto Pearson Intl. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.

Question 23

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

Accepted Answer

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

Question 24

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

Accepted Answer

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.

Question 25

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

Accepted Answer

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.

Question 26

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

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Pearson Intl today with Cheapflights!

Question 27

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

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Pearson Intl.

Question 28

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

Accepted Answer

Certainly. Search results for flights to Seattle from Pearson Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Question 29

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

Accepted Answer

Yes, Cheapflights offers price alerts on Pearson Intl to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Round-trip from	C$ 284
One-way from	C$ 178
Popular in	July
Cheapest in	February
Average price	C$ 411
Good round-trip deal	C$ 339 or less
Good one-way deal	C$ 248 or less

Airline	Cheapest	Average	Flexibility	On-time
Delta	CheapestC$ 249	AverageC$ 482	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Alaska Airlines	CheapestC$ 269	AverageC$ 462	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
WestJet	CheapestC$ 273	AverageC$ 371	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Air Canada	CheapestC$ 322	AverageC$ 582	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 340	AverageC$ 611	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Hawaiian Airlines	CheapestC$ 404	AverageC$ 456	FlexibilityNo cancel fee	On-time85%	Search Hawaiian Airlines flights

Cheap flights from Toronto Pearson Intl Airport to Seattle from C$ 178

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Pearson Intl to Seattle

Cheapest flights from Pearson Intl to SeattleExplore 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 29 January 2026.

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 29 January 2026.

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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?

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

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

How much does it cost to fly round-trip from Toronto Pearson Intl Airport to Seattle?

Weekly flight availability from Toronto Pearson Intl Airport to Seattle

How often are flights from Toronto to Seattle delayed?

What is the most punctual flight time for Toronto to Seattle flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Toronto to Seattle flights?

What’s the top layover airport for flights from Toronto Pearson Intl Airport to Seattle?

What’s the cheapest layover airport for flights from Toronto Pearson Intl Airport to Seattle?

What’s the fastest layover option from Toronto Pearson Intl Airport to Seattle?

Which airport typically offers the quickest layover for flights from Toronto Pearson Intl Airport to Seattle?

Reviews of airlines servicing Seattle

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?

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

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

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

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

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

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

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

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

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

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Top 6 airlines flying from Pearson Intl to Seattle

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

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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 29 January 2026.