Cheap flights from Seattle to Calgary from $66

The month of April is, on average, the cheapest month to fly to Calgary from Seattle, with most prices found around $214. If you aren’t able to travel during the month of April, then book flights to Calgary from Seattle during October instead. Flights to Calgary in October, while not as cheap as those in April, still average around $219.

The cheapest day to depart on your flight to Calgary is on a Friday when prices can be found for as low as $269. This is often the case because there is less demand to fly during this day of the week. Flights from Seattle to Calgary on a Sunday will generally be more expensive and average around $346. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

The cheapest time of day to fly to Calgary is in the evening when flights can be purchased for as low as $239. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $302 on average. Flights to Calgary from Seattle in the afternoon are generally more expensive because this time of day is more convenient for travelers’ 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 $253 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 $171 on momondo.

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Calgary 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 14% on your flight if you consider stops on a Seattle to Calgary flight.

As of February 2026, prices for Seattle to Calgary flights are approximately 55% more expensive when compared to flights at the same time last year.

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

WestJet, Alaska Airlines and Delta are the top three most popular airlines that fly to Calgary from Seattle according to our data. WestJet is the first choice among our users, with 74% of people opting to fly with this airline when traveling to Calgary. Keep in mind that there are 4 different airlines that fly to Calgary on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% 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 105 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.

As of February 2026, there are 4 flights per day flying from Seattle to Calgary. The most common time of day flights depart is 3:00PM, with 100% of flights taking off in the afternoon.

As of February 2026, there are 33 flights per week flying from Seattle to Calgary. The most common day of the week flights depart is Tue, with 30% of flights taking off on this day.