Cheap flights from Houston to Calgary from $109

The month of September is, on average, the cheapest month to fly to Calgary from Houston, with most prices found around $239. If you aren’t able to travel during the month of September, then book flights to Calgary from Houston during January instead. Flights to Calgary in January, while not as cheap as those in September, still average around $260.

The cheapest time of day to fly to Calgary is in the afternoon when flights can be purchased for as low as $324. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $368 on average. Flights to Calgary from Houston in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Houston George Bush Intcntl to Calgary for the best Houston - Calgary flight prices

You are more likely to see cheaper flights to Calgary from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around $305 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from Houston for as low as $159 on momondo.

WestJet and Delta are the most popular carriers operating from Houston to Calgary

WestJet, United Airlines and Delta are the top three most popular airlines that fly to Calgary from Houston according to our data. WestJet is the first choice among our users, with 73% of people opting to fly with this airline when traveling 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 17% of flights between Houston and Calgary have experienced a delay on any given week. The average delay length over the past 12 months has been 127 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. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, WestJet have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

As of April 2026, 4 flights take off from Houston and land in Calgary each day. The most common flight departure time for this route is 9:00AM, with 66% of daily flights taking off at noon.

As of April 2026, 33 flights take off from Houston and land in Calgary each week. The most common flight departure day for this route is Thu, with 24% of weekly flights taking off on this day.