Cheap flights from the United States to Calgary from C$ 38

The cheapest month to fly to Calgary from United States is in May. Flight prices, which tend to average around C$ 530, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Calgary from United States during January instead. Flights to Calgary in January, while not as cheap as those in May, still average around C$ 558.

Fly from San Francisco to Calgary for the best United States - Calgary flight prices

You are more likely to see cheaper flights to Calgary from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around C$ 758 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from United States for as low as C$ 708 on momondo.

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

Porter Airlines, WestJet, and Alaska Airlines are the most popular carriers operating from United States to Calgary

WestJet, Air Canada and United Airlines are the top three most popular airlines that fly to Calgary from United States according to our data. WestJet is the first choice among our users, with 79% of people opting to fly with this airline when travelling to Calgary. Keep in mind that there are 5 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 United States and Calgary have experienced a delay on any given week. The average delay length over the past 12 months has been 135 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. Friday 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.

As of November 2026, there are 51 flights per day flying from United States to Calgary. The most common time of day flights depart is 6:00p.m., with 47% of flights taking off in the afternoon.

As of November 2026, there are 363 flights per week flying from United States to Calgary. The most common day of the week flights depart is Fri, with 19% of flights taking off on this day.