Cheap flights from Houston George Bush Intcntl Airport to Calgary from C$ 221

The cheapest month to fly to Calgary from Houston George Bush Intcntl Airport is in October. Flight prices, which tend to average around C$ 334, 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 Houston George Bush Intcntl Airport during January instead. Flights to Calgary in January, while not as cheap as those in October, still average around C$ 367.

Our data shows that the cheapest Houston George Bush Intcntl Airport to Calgary flights are usually those with departure times in the afternoon. Our users have found flights to Calgary in the afternoon for as low as C$ 356. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 521 on average. Flights to Calgary from Houston George Bush Intcntl Airport at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Calgary from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around C$ 477 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from Houston George Bush Intcntl Airport for as low as C$ 326 on momondo.

There are 2 cabin classes available to choose from on Houston George Bush Intcntl Airport 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 13% on your flight if you consider stops on a Houston George Bush Intcntl Airport to Calgary flight.

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 132 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.

Friday is statistically the day of the week that experiences the fewest 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 has had the least delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

As of June 2026, 8 flights take off from Houston George Bush Intcntl Airport and land in Calgary each day. The most common flight departure time for this route is 2:00p.m., with 49% of daily flights taking off at noon.

As of June 2026, 62 flights take off from Houston George Bush Intcntl Airport 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.