Cheap flights from Calgary to Seattle from R2 685

The cheapest month to fly to Seattle from Calgary is in November. Flight prices, which tend to average around R3 746, are often lower during this time because this is during the off-season. If you aren’t able to travel to Seattle during the month of November, then flying in May is also cheap. Prices for this month can be found on momondo for an average of R3 796.

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

You are more likely to see cheaper flights to Seattle from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around R4 821 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Calgary for as low as R3 597 on momondo.

There is only 1 cabin class available to choose from on Calgary to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 15% of flights between Calgary and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 115 minutes.

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

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

According to our data, Alaska Airlines have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

As of October 2026, 4 flights take off from Calgary and land in Seattle each day. The most common flight departure time for this route is 11:00, with 67% of daily flights taking off at midday.

As of October 2026, 34 flights take off from Calgary and land in Seattle each week. The most common flight departure day for this route is Sun, with 24% of weekly flights taking off on this day.