Cheap flights from Calgary to Houston from C$ 208

The month of January is, on average, the cheapest month to fly to Houston from Calgary, with most prices found around C$ 336. The month of September is another great option to travel to Houston, with average flight prices from Calgary averaging around C$ 424.

Our most recent data shows that the best time of day to fly to Houston is in the morning. Flights from Calgary to Houston during this time can be as low as C$ 456. In contrast, the most expensive time of day to depart to Houston is at noon when prices are around C$ 840.

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

You are more likely to see cheaper flights to Houston from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around C$ 447 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Calgary for as low as C$ 308 on momondo.

Delta, United Airlines, and American Airlines are the most popular carriers operating from Calgary to Houston

WestJet, Air Canada and United Airlines are the top three most popular airlines that fly to Houston from Calgary according to our data. WestJet is the first choice among our users, with 80% of people opting to fly with this airline when travelling to Houston. Keep in mind that there are 5 different airlines that fly to Houston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% of flights between Calgary and Houston have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

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

According to our data, United Airlines has had the least delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

As of October 2026, 2 flights take off from Calgary and land in Houston each day. The most common flight departure time for this route is 1:00p.m., with 54% of daily flights taking off in the afternoon.

As of October 2026, there are 15 flights per week flying from Calgary to Houston. The most common day of the week flights depart is Thu, with 53% of flights taking off on this day.