Cheap Flights from Toronto to Seattle / Tacoma International

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Compare Toronto to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

Book the best Seattle / Tacoma International fare with no extra fees

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Flight deals from Toronto to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Toronto to Seattle / Tacoma International Airport? If you want to travel next month, return fares start from Rs76,081. Find the lowest prices on one-way and return tickets right here.

Seattle.Rs43,545 per passenger.Departing Wed, 7 Oct.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Wed, 7 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs43,545, select.

Seattle.Rs46,325 per passenger.Departing Wed, 30 Sep.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Wed, 30 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs46,325, select.

Seattle.Rs48,522 per passenger.Departing Tue, 10 Nov.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Tue, 10 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs48,522, select.

Seattle.Rs51,360 per passenger.Departing Tue, 1 Dec.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Tue, 1 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs51,360, select.

Seattle.Rs55,014 per passenger.Departing Thu, 15 Jul.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Thu, 15 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs55,014, select.

Seattle.Rs55,056 per passenger.Departing Sun, 14 Mar.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Sun, 14 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs55,056, select.

Seattle.Rs55,333 per passenger.Departing Sun, 24 Jan.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Sun, 24 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs55,333, select.

Seattle.Rs56,459 per passenger.Departing Tue, 9 Feb.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Tue, 9 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs56,459, select.

Seattle.Rs57,283 per passenger.Departing Thu, 3 Jun.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Thu, 3 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs57,283, select.

Seattle.Rs60,838 per passenger.Departing Thu, 22 Apr.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Toronto Pearson International on Thu, 22 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs60,838, select.

Seattle.Rs64,930 per passenger.Departing Sat, 5 Jun.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Toronto Pearson International on Sat, 5 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs64,930, select.

Seattle.Rs65,129 per passenger.Departing Mon, 5 Apr.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Toronto Pearson International on Mon, 5 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs65,129, select.

Seattle.Rs65,914 per passenger.Departing Fri, 2 Oct.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Toronto Pearson International on Fri, 2 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs65,914, select.

Seattle.Rs66,786 per passenger.Departing Sat, 5 Dec.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Toronto Pearson International on Sat, 5 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs66,786, select.

Seattle.Rs67,603 per passenger.Departing Fri, 6 Nov.One-way flight with Air Canada.Outbound direct flight with Air Canada departs from Toronto Pearson International on Fri, 6 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs67,603, select.

Seattle.Rs67,768 per passenger.Departing Thu, 24 Sep.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Toronto Pearson International on Thu, 24 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs67,768, select.

Find the cheapest month to fly from Toronto to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Toronto to Seattle / Tacoma International flights are currently cheapest in October.

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Direct flights from Toronto to Seattle / Tacoma International

Toronto to Seattle / Tacoma International: Alternative routes

Compare routes from Toronto to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Toronto to Seattle: Flight information

The things to know before you go.

Cheapest flight found	Rs43,545
Cheapest month to fly	October
Average flight time	5 hrs, 27 mins
Most popular airline	Qatar Airways
Average flights per week	31

Finding cheap flights from Toronto to Seattle / Tacoma International: Frequently asked questions

How much are return flights from Toronto to Seattle / Tacoma International?

The best price we found for a return flight from Toronto to Seattle / Tacoma International is Rs75,682. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Toronto to Seattle / Tacoma International?

5 hours and 27 minutes is the average flight time from Toronto to Seattle / Tacoma International.

Which airlines fly direct from Toronto to Seattle / Tacoma International?

Qatar Airways, Alaska Airlines and Air Canada fly direct from Toronto to Seattle / Tacoma International.

How many flights are there a week from Toronto to Seattle / Tacoma International?

As of September 2026, there are 36 flights per week flying from Toronto to Seattle / Tacoma International.

When is the cheapest time to fly from Toronto to Seattle / Tacoma International?

The cheapest month to fly from Toronto to Seattle / Tacoma International is usually September.

Which upcoming date is cheapest to fly from Toronto to Seattle / Tacoma International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Toronto to Seattle / Tacoma International Airport on Tuesday, 29 September 2026.

Can I get a direct flight from Toronto to Seattle / Tacoma International Airport?

Yes – the average flight time is 5 hours and 27 minutes.

How can I find the best flight deal to Seattle / Tacoma International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Seattle?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Toronto to Seattle-Tacoma International Airport (SEA): What you need to know

Toronto Pearson International Airport (YYZ) is Toronto's main airport. Check out your options for booking a flight from Toronto to Seattle-Tacoma International Airport (SEA) taking off from here.
Book a direct Toronto to Seattle-Tacoma International Airport flight and you'll be travelling for around 5 hours 25 minutes.
The timezone in Seattle is UTC-8, which is three hours behind Toronto. Seattle-Tacoma International Airport is located in Seattle.
With 13 direct weekly flights between the two airports, Toronto Pearson International Airport (YYZ) to Seattle-Tacoma International Airport (SEA) is the busiest route. Air Canada operates the earliest flight at 8:15am. If you're eager to get more out of your day before jetting off, the last departure from YYZ to SEA is with Air Canada at 7:20pm.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Get to the airport on time to board your flight from Toronto to SEA.
Be prepared for longer queues during popular months like July and other peak seasons. Arriving up to four hours ahead of international flights and two hours for domestic departures is a wise move.

Airports in Toronto

Toronto Pearson International Airport (YYZ)

Get to your destination in one go from Toronto Pearson International Airport (YYZ). Direct flights from Toronto to Seattle-Tacoma International Airport (SEA) operate from here.
Air Canada is a well-known airline that operates direct flights from Toronto to Seattle-Tacoma International Airport leaving from YYZ.
The majority of travellers choose to book seats with Air Canada from YYZ to SEA.
Among carriers on this route, Alaska Airlines has the best record for on-time arrivals.
Located around 27 kilometres from central Toronto, YYZ can be reached in about 30 minutes by car, depending on traffic. The journey by public transport will take roughly 25 minutes.
Booked an early flight from Toronto to Seattle-Tacoma International Airport? Avoid the mad dash to the terminal (and get a little more snooze time) by choosing one of these hotels close to Toronto Pearson International Airport:
When it comes to the on-time performance of Toronto Pearson International Airport, data shows 68% of flights stick to their scheduled arrival time.

Billy Bishop Toronto City Airport (YTZ)

YTZ is about 3 kilometres from central Toronto. It'll take you 10 minutes or so to get to the airport if you're driving from the city centre. Public transport takes approximately 20 minutes.
Want to enjoy an extra night away before your Toronto to SEA flight? Kick back in a hotel near Billy Bishop Toronto City Airport before your holiday officially starts. These stays are calling your name:
Billy Bishop Toronto City Airport has an on-time performance rate of 70%. This figure sheds light on how frequently flights that depart from this airport land at their destination on schedule.

John C. Munro Hamilton International Airport (YHM)

From the centre of Toronto, YHM is around 72 kilometres away. It takes roughly 1 hour 10 minutes to reach the airport by car and 1 hour 50 minutes or so if you're on public transport.
Sleep a little longer and still make your Toronto to Seattle-Tacoma International Airport flight with time to spare. These hotels near John C. Munro Hamilton International Airport make getting to the terminal a breeze if you're flying out first thing:
Airports have an on-time performance rating that tracks how often flights arrive at their destinations within the expected time frame. At YHM, that rate is 68%.

About Seattle-Tacoma International Airport (SEA)

Consider booking a hotel close to SEA if you're catching a late flight from Toronto to Seattle-Tacoma International Airport. Pick one of these accommodation options and be in bed in no time flat:
Lock in the best deal by reserving your ride around one week ahead of your Toronto to Seattle-Tacoma International Airport flight.

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

Central Seattle is around 23 kilometres from Seattle-Tacoma International Airport and takes about 25 minutes to reach by car. See what your options are for making the trip into the city, whether that's with a car hire, taxi or ride-share.
When travelling by public transport, expect a journey time of about 35 minutes.

How to find the cheapest flights from Toronto to Seattle-Tacoma International Airport (SEA)

Rs43,545 is currently the best price for a one-way ticket from Toronto to Seattle-Tacoma International Airport. Return flights start at Rs75,682. These fares may change based on availability.
Booking ahead of time is often the key to finding a cheap flight from Toronto to SEA. Prices tend to rise as demand increases, so the closer your departure date, the more it could cost you.
If you can be flexible with your trip dates, try using the 'Whole month' search tool. It'll give you the cheapest price across the month when searching for your Toronto to Seattle-Tacoma International Airport ticket.
There's no need to search every day to find out if prices have dropped when you set up a Price Alert. We'll notify you as soon as a new deal shows up on plane tickets from Toronto to SEA.
Find the best deal on a flight from Toronto to Seattle-Tacoma International Airport with the help of the filters. Choose your preferred departure and arrival times, number of stops and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

The best time to fly from Toronto to Seattle-Tacoma International Airport (SEA)

December is the quietest month for flights from Toronto to Seattle-Tacoma International Airport (SEA), while July is the busiest. Pick the ideal time to visit Seattle based on whether you want a bustling atmosphere or a more laid-back vibe.
Book a Toronto to SEA plane ticket departing in August if you're eager to experience the city during its warmest month. Expect temperatures in Seattle to range from 12ºC to 28ºC.
If you want to travel in cooler conditions, search for a cheap ticket from Toronto to Seattle-Tacoma International Airport in February when temperatures are between -1ºC and 11ºC.

More about Seattle

When it comes to searching for somewhere to rest your head, you'll find the most popular stays in Seattle right here. Check out these hotels once you've locked in your flight from Toronto to Seattle-Tacoma International Airport:
You'll find plenty of awesome things to do in Seattle when you're ready to see the sights. Start exploring at Space Needle followed by Pike Place Market and Seattle Skyline.

Explore more of the United States

Portland is just one of the many places in the United States waiting to be discovered after you've seen Seattle. Around 209 kilometres away to the south, its best attractions include Portland Japanese Garden, Peninsula Park Rose Garden and Beyond Van Gogh Portland.
Vancouver is another standout destination in the United States and is around 209 kilometres south of Seattle. No trip is complete without visiting Reconstructed HBC Fort Vancouver, The Marshall House: Victorian Jewel of Officers Row and Clark County Historical Museum.