Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Seattle to Toronto
The cheapest flights right now
Seattle – Toronto
Outbound – Nov 28, 2026
direct
4h 40m Return – Dec 5, 2026
direct
5h 41m $671
today
Seattle – Toronto
Outbound – Nov 28, 2026
direct
4h 34m Return – Dec 5, 2026
direct
5h 41m $500
today
Seattle – Toronto
Outbound – Nov 28, 2026
direct
4h 34m Return – Dec 5, 2026
1 stop
10h 42m LAS
$493
2 days ago
Seattle – Toronto
Outbound – Nov 28, 2026
direct
4h 34m Return – Dec 5, 2026
1 stop
9h 39m PHX
$533
2 days ago
* 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
$369
Average price of a round trip
$404
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
16h43
A flight from Seattle to Toronto takes on average 16h43.
Best time
March
According to user searches, the ideal month to go to Toronto is March.
The best flight deals for a week
Seattle – Toronto
Outbound – Nov 28, 2026
direct
4h 40m Return – Dec 5, 2026
direct
5h 41m $671
today
Seattle – Toronto
Outbound – Nov 28, 2026
direct
4h 34m Return – Dec 5, 2026
direct
5h 41m $500
today
Seattle – Toronto
Outbound – Nov 28, 2026
direct
4h 34m Return – Dec 5, 2026
1 stop
10h 42m LAS
$493
2 days ago
Seattle – Toronto
Outbound – Nov 28, 2026
direct
4h 34m Return – Dec 5, 2026
1 stop
9h 39m PHX
$533
2 days ago
* 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 Seattle to Toronto
Check out our tips for booking your flight to Toronto (Canada) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is June, with an average flight ticket price of $370 (calculation over the last two years). The most touristic season corresponds to the months of September, August and June.
For the cheapest flights, it is advisable to buy your ticket at least 50 days before the departure date.
The airline offering the cheapest flight tickets is Alaska Airlines. A ticket from the airline Alaska Airlines to Toronto costs on average $366.
The airlines that offer the most flights are .
Price of flight tickets from Seattle to Toronto
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $369 to $486
- The average price of a flight ticket is about $404
- Prices are lowest for stays in the month of June
- The month in which booking a ticket is cheaper is: October
info departure city :
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 a city in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {fromLocalTime}, the temperature is on average 11°C, with a minimum of 7°C and a maximum of 15°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
destination info :
Toronto, Canada
airports :
Toronto-Billy Bishop Airport (YTZ)
Toronto-Pearson International Airport (YYZ)
Toronto-Buttonville Airport (YKZ)
local time :
Toronto is in the country Canada, the time zone is [[timezone]]. In Toronto, it is currently {toLocalTime}, the temperature is on average 11°C, with a minimum of 6°C and a maximum of 17°C.
The city of Toronto (YTO) has 3 airport(s): Toronto-Billy Bishop, Toronto-Pearson and Toronto-Buttonville
Useful info about Toronto
What is the least touristic period to go to Toronto?
If you want to visit Toronto during the least touristic period, choose the month of March.
What is the most popular time to travel to Toronto?
In Toronto, the most popular month is September. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Seattle to Toronto?
According to our data, it is recommended to book your flight 50 days before your departure. If you book your flight ticket 8 weeks before your departure, you may find a price below average. You can also choose morning flights that are 4% cheaper than afternoon and evening flights. The cheapest day to book a flight from Seattle to Toronto is Sunday.
What are the arrival and destination airports when traveling between Seattle and Toronto?
When you leave, you can leave from Seattle-Tacoma, and you will arrive at Region of Waterloo or Toronto-Pearson.
How to reach Seattle airport from the city centre?
The airport Kenmore Air Harbor Spb. is located 3 km, Seattle-Tacoma is located 16 km, Renton is located 16 km or King County is located 8 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 Seattle to Toronto?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Seattle and Toronto?
In summer, the average temperature is 21°C in Toronto and 18°C in Seattle. The average rainfall in summer is 93 mm in Toronto and 38 mm in Seattle. 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.
