Cheap flights from Seattle to Canada from $129

If you aren’t able to travel during the month of February, then book flights to Canada from Seattle during January instead. Flights to Canada in January, while not as cheap as those in February, still average around $56.

Our data shows that Tuesday is the least expensive day to fly to Canada. Tickets to fly out on this day can be as low as $510. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Canada for around $756.

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 $394 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 $280 on momondo.

There are 4 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 33% on your flight if you consider stops on a Seattle to Canada flight.

WestJet, Delta, 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 43% of people opting to fly with this airline when traveling to Canada. Keep in mind that there are 6 different airlines that fly to Canada on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% 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 107 minutes.

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

Tuesday is statistically the day of the week which experiences the fewest number of 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 have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

95 flights are operational daily from Seattle to Canada as of June 2026. The most popular departure time for this route is 3:00PM, with 37% of flights per day taking off at noon.

As of June 2026, 665 flights take off from Seattle and land in Canada each week. The most common flight departure day for this route is Fri, with 16% of weekly flights taking off on this day.