starting at $481
starting at $627
starting at $331
starting at $223
starting at $363
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Toronto to Seattle. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
The minimum one-way ticket price from Toronto to Seattle is $167 (November 2026), while the maximum is $310 (September 2027). On average, a ticket costs $239–$305.
A non-stop flight is the most convenient and comfortable way to fly from Toronto to Seattle, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Ticket prices for Toronto — Seattle follow a predictable curve: rise, peak, and decline. This typical seasonal pattern lets you plan your purchase to avoid overpaying.
Prices rise from November 2026 to September 2027 (+86%), then decline from October 2026 to November 2026 (45%). The cheapest tickets are in November 2026–December 2026 (averaging $171), while the priciest are in December 2026–September 2027 ($243).
For savings, plan your flight for November 2026–December 2026 — you could save up to 29%. Try to avoid December 2026–September 2027 when possible: prices are at their highest then.
Price spread on this route is 28.6%. Costs depend heavily on the season, so flexibility in choosing your departure month is especially valuable here.
The Toronto — Seattle route is served by a wide range of airlines: 5 in total, including Alaska Airlines, United Airlines, Air Canada, Westjet, and Flair Airlines Ltd.. Competition among carriers gives passengers the opportunity to find tickets at attractive fares — with prices starting from $223. Our service helps compare all available offers within seconds and choose the most convenient option. You can filter flights by price, departure time, or baggage rules to make your trip as comfortable as possible. With so many airlines, there’s always a chance to catch special promotions and save.
starting at $481
starting at $627
starting at $331
starting at $223
starting at $363
Toronto — Seattle
10/16/2026
Departure
Direct flight
AS391
starting at $481
Toronto — Seattle
10/17/2026
Departure
Direct flight
UA8270
starting at $734
Toronto — Seattle
10/18/2026
Departure
Direct flight
AC541
starting at $1,046
Toronto — Seattle
10/19/2026
Departure
Direct flight
UA8270
starting at $961
Toronto — Seattle
10/20/2026
Departure
Direct flight
UA8270
starting at $627
Toronto — Seattle
11/21/2026
Departure
Direct flight
AC543
starting at $331
There are most likely no direct flights on the Toronto — Seattle route
The cheapest flight ticket from Toronto to Seattle according to data for the last 48 hours costs $223
Often the best time to buy tickets from Toronto to Seattle is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Toronto to Seattle can be found flying in these months: November, December, October.
The fastest flights from Toronto to Seattle start from 8 hours 15 minutes in the air.
The following airlines operate direct flights on the route Toronto — Seattle: Alaska Airlines, United Airlines, Air Canada
The cheapest one-way flight from Toronto to Seattle departs on 11/21/2026, is operated by Westjet and costs $223
The cheapest roundtrip flight from Toronto to Seattle departs on 12/19/2026, is operated by Alaska Airlines and costs $544
Fastest flight from Toronto to Seattle takes 8h 15m
All airports
There are direct flights on this route 5 days a week: Su, Mo, Tu, Fr, and Sa
The distance between Toronto and Seattle is 3324km (2061 miles). There are 23 direct flights from Toronto to Seattle. The time difference between Toronto and Seattle is 3h. Flights from Toronto begin at 4:55 PM. The latest flight from Toronto departs at 6:45 PM
We couldn't find any special offers for flights from Toronto to Seattle