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Cheap Flights from Denver to Phoenix
DEN → PHX • About 1h 50m nonstop • 4 airlines
Adults
+12 years old
Children
2-11 years old
Infants
Under 2 years
Fares shown are the lowest we have recorded recently on this route and are not a live quote. Run a search above for today's availability, or call (800) 399-8818 and an agent will price it with you.
Flights from Denver (DEN) to Phoenix (PHX)
The Denver to Phoenix route covers roughly 600 miles and takes about 1h 50m nonstop. 4 airlines compete on it — United Airlines, Southwest Airlines, Frontier Airlines, American Airlines — which keeps fares moving and makes it worth comparing carriers rather than defaulting to the one you usually fly. We have seen one-way fares on this route start around $72.
Phoenix is a winter destination that runs backwards from the rest of the country: peak season is January through April, and the deepest fare discounts land in July and August when temperatures pass 110°F.
The Sonoran Desert surrounds the city with hiking, and Sedona, the Grand Canyon and Tucson are all within a comfortable drive.
Airlines flying DEN to PHX
- United Airlines
- Southwest Airlines
- Frontier Airlines
- American Airlines
Airports on this route
- Departing: Denver International Airport (DEN)
- Arriving: Phoenix Sky Harbor International Airport (PHX)
Best time to fly to Phoenix
November through April, when highs sit in the 70s and 80s. Midsummer is punishing but genuinely cheap.
Top things to do in Phoenix
- Camelback Mountain
- Desert Botanical Garden
- Old Town Scottsdale
- Musical Instrument Museum
- Papago Park
- Sedona day trip
- Grand Canyon National Park
How to save on Denver to Phoenix flights
- Shift your departure by one or two days — midweek departures on this route are consistently cheaper than Friday and Sunday.
- Book four to eight weeks ahead. Last-minute fares on DEN to PHX routinely run double the advance price.
- Compare all 4 carriers rather than checking one airline's own site.
- Spring training in March fills the metro area — book early or avoid the month.
- Sky Harbor is unusually close to downtown, about 10 minutes by car.
- Hike early; trailheads on Camelback close during extreme heat warnings in summer.
About flights from Denver to Phoenix
Fares on the DEN to PHX route move with demand, so flexibility is worth more than timing tricks. Shifting your departure by a day or two, flying midweek instead of Friday or Sunday, and booking four to eight weeks ahead all reduce the fare on this route. Our agents also hold consolidator and unpublished fares that do not appear in online results.
United Airlines, Southwest Airlines, Frontier Airlines, American Airlines all operate on this route. United Airlines typically offers the most frequencies, with Southwest Airlines and Frontier Airlines providing competing schedules. Availability varies by season and by which Denver airport you depart from, so it is worth comparing all carriers before booking.
A nonstop flight takes about 1h 50m. Itineraries with a connection typically add two to four hours depending on the layover city and the length of the stop.
The two cities are roughly 600 miles apart by air.
Departures leave from Denver International Airport (DEN). Arrivals land at Phoenix Sky Harbor International Airport (PHX).
November through April, when highs sit in the 70s and 80s. Midsummer is punishing but genuinely cheap.