Cheap flights from Seattle to Canada from C$ 89

In general, January is the cheapest month to fly from Seattle to Canada. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 392. If you’re not able to fly to Canada in January, then November is your next best option. Flight prices from Seattle to Canada during November average around C$ 415.

Our data shows that Thursday is the least expensive day to fly to Canada. Tickets to fly out on this day can be as low as C$ 749. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 1,089. These prices are subject to change though, so be sure to set up a Price Alert for flights to Canada.

Fly from Seattle/Tacoma Intl to Calgary for the best Seattle/Tacoma Intl - Canada flight prices

You are more likely to see cheaper flights to Canada from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Canada for around C$ 564 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Canada from Seattle for as low as C$ 442 on momondo.

There are 3 cabin classes available to choose from on Seattle to Canada flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 10% on your flight if you consider stops on a Seattle to Canada flight.

WestJet, Alaska Airlines, and Air Canada are the most popular carriers operating from Seattle/Tacoma Intl to Canada

WestJet, Alaska Airlines and Air Canada are the top three most popular airlines that fly to Canada from Seattle according to our data. WestJet is the first choice among our users, with 47% of people opting to fly with this airline when travelling to Canada. Keep in mind that there are 3 different airlines that fly to Canada on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between Seattle and Canada have experienced a delay on any given week. The average delay length over the past 12 months has been 109 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Alaska Airlines has had the least delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

As of September 2026, there are 69 flights per day flying from Seattle to Canada. The most common time of day flights depart is 3:00p.m., with 42% of flights taking off in the afternoon.

483 flights are operational weekly from Seattle to Canada as of September 2026. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.