Skyscanner home

Cheap Flights from Denver International to Phoenix Sky Harbor

Compare Denver International to Phoenix Sky Harbor flight deals

Find the cheapest month or even day of the year to fly to Phoenix Sky Harbor

Book the best Phoenix Sky Harbor fare with no extra fees

Flight deals from Denver International to Phoenix Sky Harbor

Looking for a cheap last-minute deal or the best return flight from Denver International Airport to Phoenix Sky Harbor Airport? If you want to travel next month, return fares start from R 1,685. Find the lowest prices on one-way and return tickets right here.
Phoenix.R 622 per passenger.Departing Wed, 23 Sep.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Wed, 23 Sep, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From R 622, select.
Phoenix.R 793 per passenger.Departing Fri, 14 Aug.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Fri, 14 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From R 793, select.
Phoenix.R 802 per passenger.Departing Tue, 21 Jul.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Tue, 21 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From R 802, select.
Phoenix.R 803 per passenger.Departing Wed, 28 Oct.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Wed, 28 Oct, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From R 803, select.
Phoenix.R 891 per passenger.Departing Wed, 4 Nov.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Wed, 4 Nov, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From R 891, select.
Phoenix.R 924 per passenger.Departing Tue, 30 Jun.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Tue, 30 Jun, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From R 924, select.
Phoenix.R 1,610 per passenger.Departing Wed, 16 Dec.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Wed, 16 Dec, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From R 1,610, select.
Phoenix.R 1,956 per passenger.Departing Wed, 10 Feb.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Wed, 10 Feb, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From R 1,956, select.

Find the cheapest month to fly from Denver International to Phoenix Sky Harbor

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Phoenix Sky Harbor flights are currently cheapest in September.
Jun
from R 924
Jul
from R 802
Aug
from R 793
Sep
from R 622
Oct
from R 803
Nov
from R 891
Dec
from R 1,610
Jan
Find prices
Feb
from R 1,956
Mar
Find prices
Apr
Find prices
May
Find prices

Direct flights from Denver International to Phoenix Sky Harbor

Denver International to Phoenix Sky Harbor: Alternative routes

Compare routes from Denver International to Phoenix below. You may find an airport to fly into that's cheaper, faster, or easier than Phoenix Sky Harbor.

Phoenix Sky Harbor

6km from central Phoenix
ClosestCheapest
from R 621
Search flights

Phoenix Scottsdale Municipal

24km from central Phoenix
Search flights

Phoenix-Deer Valley

27km from central Phoenix
Search flights

Phoenix-Mesa Gateway

42km from central Phoenix
from R 1,722
Search flights

Denver to Phoenix: Flight information

The things to know before you go.
Cheapest flight foundR 622
Cheapest month to flySeptember
Average flight time2 hrs
Most popular airlineSouthwest Airlines
Average flights per week340

Finding cheap flights from Denver International to Phoenix Sky Harbor: Frequently asked questions

The best price we found for a return flight from Denver International to Phoenix Sky Harbor is R 1,479. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours is the average flight time from Denver International to Phoenix Sky Harbor.
Southwest Airlines, American Airlines and United fly direct from Denver International to Phoenix Sky Harbor.
As of June 2026, there are 333 flights per week flying from Denver International to Phoenix Sky Harbor.
The cheapest month to fly from Denver International to Phoenix Sky Harbor is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Phoenix Sky Harbor Airport on Wednesday, 9 September 2026.
Yes – the average flight time is 2 hours.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Phoenix Sky Harbor but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Phoenix is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Phoenix Sky Harbor.

Flying from Denver International Airport (DEN) to Phoenix Sky Harbour Airport (PHX): what you need to know

  • The average duration of a direct flight from Denver International Airport to Phoenix Sky Harbour Airport is 2 hours.

  • Denver and Phoenix share the UTC-7 timezone. This means you won't have to change your watch on arrival.

  • Each week, there are 131 Denver International Airport to Phoenix Sky Harbour Airport flights. To get going early, jump on the 05:20 Southwest Airlines flight. If you're eager to make the most of your day before you fly, the last departure is at 22:59 with Frontier Airlines.

  • Your DEN to PHX flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Be prepared for longer lines in popular months such as July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will give you ample time for security and boarding.

  • You'll find a range of airlines offering direct flights from Denver International Airport to Phoenix Sky Harbour Airport. When you're ready to start your Phoenix adventure, let one of these carriers fly you to this must-see corner of the United States:

  • The airline most travellers prefer to fly with on this route is United.

  • United is the most punctual carrier offering DEN to PHX flights. A dependable 84.46% of its services on this route arrive as scheduled.

  • If you want to split up your journey, simply uncheck 'Direct flights only' when searching for your ticket from Denver International Airport to Phoenix Sky Harbour Airport. These are the most popular stopovers between DEN and PHX:

    • Albuquerque Airport

    • Colorado Springs Peterson Field Airport

    • Grand Junction Airport

How to find the cheapest flights from Denver International Airport (DEN) to Phoenix Sky Harbour Airport (PHX)

  • Right now, R 621 is the cheapest price we've seen for a one-way Denver International Airport to Phoenix Sky Harbour Airport flight. The best price for a return ticket is R 1,479. Keep in mind that fares can change due to demand at the time of booking.

  • Book one month before you want to fly. After looking at the numbers on our calendar, this is how far you should book ahead to find cheap tickets from DEN to PHX.

  • The cheapest month for flights from Denver International Airport to Phoenix Sky Harbour Airport is June. Use the 'Whole month' tool to see the lowest prices if you have a flexible travel schedule.

  • Save time looking for cheap flights from DEN to PHX by creating a Price Alert. We'll send you an email or notification on the app when a lower fare pops up.

  • Choose your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Denver International Airport to Phoenix Sky Harbour Airport.

Handy information about Denver International Airport (DEN)

  • You'll find DEN at 8500 Pena Boulevard.

  • 80% of flights departing from Denver International Airport land at their destination as planned. Given its strong performance rating, delays are unlikely when flying out of DEN.

  • Central Denver to Denver International Airport is around 40 kilometres. Depending on traffic, it'll take about 35 minutes to get there if you're ride-sharing, catching a taxi or driving.

  • The journey when using public transport will take about 35 minutes.

  • Get your flight from Denver International Airport to Phoenix Sky Harbour Airport off to a relaxed start. Just a short drive from DEN, spend the night in Baymont by Wyndham Denver International Airport and be well-rested for the trip ahead.

Arriving at Phoenix Sky Harbour Airport (PHX)

When to fly to Phoenix Sky Harbour Airport (PHX)

  • April is the busiest month for flights from Denver International Airport to Phoenix Sky Harbour Airport. To escape the crowds, head to Phoenix in March.

  • When reserving your flight from Denver International Airport to Phoenix Sky Harbour Airport, consider the type of weather you enjoy. July is the warmest month in Phoenix, with the temperature ranging from 27ºC (81ºF) to 45ºC (113ºF).

  • Look for cheap tickets from DEN to PHX in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 4ºC (39ºF) and 21ºC (70ºF) on average.

Explore more of the United States

  • You've visited Phoenix, now it's time to explore other parts of the United States. Journey around 483 kilometres west to San Diego to tick off its top sights. From San Diego Zoo to San Diego Balboa Park and USS Midway Museum, you'll have a full itinerary ahead.

  • Las Vegas is another standout destination in the United States and is around 418 kilometres north-west of Phoenix. No journey is complete without a visit to Ciudad del Pecado o Las Vegas, Las Vegas Strip and Fountains of Bellagio.

Plan the rest of your trip from Denver to Phoenix

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.