Cheap flights from Seattle to Calgary from C$ 150

The cheapest month to fly to Calgary from Seattle is in October. Flight prices, which tend to average around C$ 284, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Calgary from Seattle during November instead. Flights to Calgary in November, while not as cheap as those in October, still average around C$ 342.

The cheapest day to depart on your flight to Calgary is on a Monday when prices can be found for as low as C$ 340. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 565.

Our data shows that the cheapest Seattle to Calgary flights are usually those with departure times in the morning. Our users have found flights to Calgary in the morning for as low as C$ 318. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 560 on average. Flights to Calgary from Seattle in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Calgary from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around C$ 388 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from Seattle for as low as C$ 299 on momondo.

You could potentially save up to 23% on your flight if you consider stops on a Seattle to Calgary flight.

As of May 2026, prices for Seattle to Calgary flights are approximately 15% cheaper when compared to flights at the same time last year.

Historically, on average around 21% of flights between Seattle and Calgary have experienced a delay on any given week. The average delay length over the past 12 months has been 106 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening 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 15% of their flights experiencing any sort of delay.

8 flights are operational daily from Seattle to Calgary as of May 2026. The most popular departure time for this route is 3:00p.m., with 40% of flights per day taking off in the afternoon.

As of May 2026, there are 62 flights per week flying from Seattle to Calgary. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.