Cheap flights from Denver to Phoenix from $55

In general, September is the cheapest month to fly from Denver to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $159. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Denver during the month July is also very affordable. Most momondo users find prices during this month for around $171.

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Denver is on a Saturday. momondo users have found tickets for Saturday departures for as low as $197. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $237. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

In the evening is the cheapest time of day to fly from Denver to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $182. Flying to Phoenix Sky Harbor Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $236. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Denver Intl to Phoenix Sky Harbor Intl for the best Denver Intl - Phoenix Sky Harbor Intl flight prices

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $191 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Denver for as low as $151 on momondo.

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

Southwest, Delta, and Frontier are the most popular carriers operating from Denver Intl to Phoenix Sky Harbor Intl

Frontier, Southwest and United Airlines are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Denver according to our data. Frontier is the first choice among our users, with 69% of people opting to fly with this airline when traveling to Phoenix Sky Harbor Intl Airport. Keep in mind that there are 4 different airlines that fly to Phoenix Sky Harbor Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between Denver and Phoenix have experienced a delay on any given week. The average delay length over the past 12 months has been 129 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.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines 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, there are 39 flights per day flying from Denver to Phoenix Sky Harbor Intl Airport. The most common time of day flights depart is 7:00PM, with 39% of flights taking off in the afternoon.

As of April 2026, there are 273 flights per week flying from Denver to Phoenix Sky Harbor Intl Airport. The most common day of the week flights depart is Sun, with 20% of flights taking off on this day.