Cheap flights from Houston to Denver from $44

The cheapest month to fly to Denver from Houston is in February. Flight prices, which tend to average around $167, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in February, then you should wait until January to fly from Houston, when ticket prices are also cheap, with an average price of $171.

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $242. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $379.

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $222. Flights at noon are often more expensive with an average ticket price of $420.

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

You are more likely to see cheaper flights to Denver from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $198 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Houston for as low as $155 on momondo.

There are 4 cabin classes available to choose from on Houston to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Frontier, Southwest, and United Airlines are the most popular carriers operating from Houston to Denver Intl

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from Houston according to our data. Frontier is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 5 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Houston and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 141 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, Frontier have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

As of February 2026, 37 flights take off from Houston and land in Denver each day. The most common flight departure time for this route is 6:00AM, with 42% of daily flights taking off at noon.

The number of flights available between Houston and Denver is 265 per week as of February 2026. The most frequent departure day is Fri, with 19% of weekly flights leaving on this day.