Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Toronto to Seattle
The cheapest flights right now
Toronto – Seattle
Outbound – Dec 5, 2026
1 stop
11h 23m SFO
Return – Dec 12, 2026
direct
4h 32m $468
yesterday
Toronto – Seattle
Outbound – Nov 14, 2026
1 stop
10h 31m SFO
Return – Nov 21, 2026
direct
4h 34m $498
yesterday
Toronto – Seattle
Outbound – Dec 5, 2026
direct
5h 41m Return – Dec 12, 2026
direct
4h 32m $496
yesterday
Toronto – Seattle
Outbound – Nov 14, 2026
1 stop
9h 40m LAS
Return – Nov 21, 2026
direct
4h 34m $490
yesterday
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$215
Average price of a round trip
$461
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
5h20
A flight from Toronto to Seattle takes on average 5h20.
Best time
July
According to user searches, the ideal month to go to Seattle is July.
The best flight deals for a week
Toronto – Seattle
Outbound – Dec 6, 2026
direct
5h 34m Return – Dec 12, 2026
direct
4h 40m $581
yesterday
Toronto – Seattle
Outbound – Dec 5, 2026
1 stop
11h 23m SFO
Return – Dec 12, 2026
direct
4h 32m $468
yesterday
Toronto – Seattle
Outbound – Nov 14, 2026
1 stop
10h 31m SFO
Return – Nov 21, 2026
direct
4h 34m $498
yesterday
Toronto – Seattle
Outbound – Dec 5, 2026
direct
5h 41m Return – Dec 12, 2026
direct
4h 32m $496
yesterday
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Tips for finding a cheap flight from Toronto to Seattle
Check out our tips for booking your flight to Seattle (USA) from Toronto (Canada) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is September, with an average flight ticket price of $286 (calculation over the last two years). The most touristic season corresponds to the months of October, July and November.
For the cheapest flights, it is advisable to buy your ticket at least 26 days before the departure date.
The airline offering the cheapest flight tickets is WestJet. A ticket from the airline WestJet to Seattle costs on average $394.
The airlines that offer the most flights are Air Canada, Alaska Airlines and Air Canada.
info departure city :
Toronto, Canada
airports :
Toronto-Billy Bishop Airport (YTZ)
Toronto-Pearson International Airport (YYZ)
Toronto-Buttonville Airport (YKZ)
local time :
Toronto is a city in the country Canada, the time zone is [[timezone]]. In Toronto, it is currently {fromLocalTime}, the temperature is on average 11°C, with a minimum of 9°C and a maximum of 12°C.
The city of Toronto (YTO) has 3 airport(s): Toronto-Billy Bishop, Toronto-Pearson and Toronto-Buttonville
destination info :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :
Seattle is in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {toLocalTime}, the temperature is on average 15°C, with a minimum of 10°C and a maximum of 23°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
Useful info about Seattle
What is the least touristic period to go to Seattle?
If you want to visit Seattle during the least touristic period, choose the month of July.
What is the most popular time to travel to Seattle?
In Seattle, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Toronto to Seattle?
According to our data, it is recommended to book your flight 26 days before your departure. If you book your flight ticket 4 weeks before your departure, you may find a price below average. You can also choose morning flights that are 25% cheaper than afternoon and evening flights. The cheapest day to book a flight from Toronto to Seattle is Wednesday.
What are the arrival and destination airports when traveling between Toronto and Seattle?
When you leave, you can leave from Toronto-Pearson, and you will arrive at Seattle-Tacoma.
How to reach Toronto airport from the city centre?
The airport Toronto-Billy Bishop is located 3 km, Toronto-Pearson is located 23 km or Toronto-Buttonville is located 21 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Toronto to Seattle?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Toronto and Seattle?
In summer, the average temperature is 18°C in Seattle and 21°C in Toronto. The average rainfall in summer is 38 mm in Seattle and 93 mm in Toronto. In summer, it is warmer in Toronto and it rains less in Seattle. In winter, it is colder in Seattle and it rains more in Seattle.
