Cheap flights from Arizona to Denver from $33

The cheapest month to fly to Denver from Arizona is in February. Flight prices, which tend to average around $143, 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 October to fly from Arizona, when ticket prices are also cheap, with an average price of $151.

The cheapest day to depart on your flight to Denver is on a Thursday when prices can be found for as low as $234. 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 Monday, with ticket prices averaging around $305.

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $198. Flights at noon are often more expensive with an average ticket price of $467.

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

You are more likely to see cheaper flights to Denver from Arizona when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $172 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Arizona for as low as $140 on momondo.

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

United Airlines, Frontier, and Delta are the most popular carriers operating from Arizona to Denver Intl

Frontier, Southwest and United Airlines are the top three most popular airlines that fly to Denver from Arizona according to our data. Frontier is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 6 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

As of February 2026, there are 34 flights per day flying from Arizona to Denver. The most common time of day flights depart is 5:00PM, with 51% of flights taking off in the afternoon.

As of February 2026, there are 243 flights per week flying from Arizona to Denver. The most common day of the week flights depart is Tue, with 36% of flights taking off on this day.