Cheap flights from the United States to Calgary from C$ 140

The cheapest month to fly to Calgary from United States is in October. Flight prices, which tend to average around C$ 408, 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 United States during November instead. Flights to Calgary in November, while not as cheap as those in October, still average around C$ 472.

The cheapest day to depart on your flight to Calgary is on a Friday when prices can be found for as low as C$ 771. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from United States because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 775.

Fly from Boston Logan Intl 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$ 710 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$ 601 on momondo.

There are 4 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.

You could potentially save up to 11% on your flight if you consider stops on a United States to Calgary flight.

American Airlines, Delta, and United 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 82% of people opting to fly with this airline when travelling to Calgary. Keep in mind that there are 6 different airlines that fly to Calgary on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% 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 136 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.

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 12% of their flights experiencing any sort of delay.

As of August 2026, there are 73 flights per day flying from United States to Calgary. The most common time of day flights depart is 6:00p.m., with 40% of flights taking off in the afternoon.

As of August 2026, there are 516 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.