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Cheap Flights from Phoenix Sky Harbor to Denver International

Compare Phoenix Sky Harbor to Denver International flight deals

Find the cheapest month or even day of the year to fly to Denver International

Book the best Denver International fare with no extra fees

Flight deals from Phoenix Sky Harbor to Denver International

Looking for a cheap last-minute deal or the best return flight from Phoenix Sky Harbor Airport to Denver International Airport? If you want to travel next month, return fares start from R 1,610. Find the lowest prices on one-way and return tickets right here.
Denver.R 537 per passenger.Departing Wed, 16 Sep.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Wed, 16 Sep, arriving in Denver International.Price includes taxes and charges.From R 537, select.
Denver.R 795 per passenger.Departing Tue, 21 Jul.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Tue, 21 Jul, arriving in Denver International.Price includes taxes and charges.From R 795, select.
Denver.R 795 per passenger.Departing Mon, 31 Aug.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Mon, 31 Aug, arriving in Denver International.Price includes taxes and charges.From R 795, select.
Denver.R 805 per passenger.Departing Fri, 2 Oct.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Fri, 2 Oct, arriving in Denver International.Price includes taxes and charges.From R 805, select.
Denver.R 853 per passenger.Departing Wed, 11 Nov.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Wed, 11 Nov, arriving in Denver International.Price includes taxes and charges.From R 853, select.
Denver.R 1,612 per passenger.Departing Sat, 27 Jun.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Sat, 27 Jun, arriving in Denver International.Price includes taxes and charges.From R 1,612, select.
Denver.R 1,615 per passenger.Departing Wed, 16 Dec.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 16 Dec, arriving in Denver International.Price includes taxes and charges.From R 1,615, select.
Denver.R 2,114 per passenger.Departing Wed, 12 May.One-way flight with Delta.Outbound indirect flight with Delta, departs from Phoenix Sky Harbor on Wed, 12 May, arriving in Denver International.Price includes taxes and charges.From R 2,114, select.
Denver.R 2,616 per passenger.Departing Wed, 12 May.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Wed, 12 May, arriving in Denver International.Price includes taxes and charges.From R 2,616, select.
Denver.R 2,623 per passenger.Departing Wed, 7 Apr.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Wed, 7 Apr, arriving in Denver International.Price includes taxes and charges.From R 2,623, select.
Denver.R 2,649 per passenger.Departing Sat, 2 Jan.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Sat, 2 Jan, arriving in Denver International.Price includes taxes and charges.From R 2,649, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix Sky Harbor to Denver International flights are currently cheapest in September.
Jun
from R 1,612
Jul
from R 795
Aug
from R 795
Sep
from R 537
Oct
from R 805
Nov
from R 853
Dec
from R 1,615
Jan
from R 2,649
Feb
Find prices
Mar
Find prices
Apr
from R 2,623
May
from R 2,114

Direct flights from Phoenix Sky Harbor to Denver International

Phoenix Sky Harbor to Denver International: Alternative routes

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

Denver Arapahoe Co

1km from central Denver
Closest
Search flights

Broomfield

23km from central Denver
Search flights

Denver International

30km from central Denver
Cheapest
from R 537
Search flights

Northern Colorado Regional

79km from central Denver
Search flights

Phoenix to Denver: Flight information

The things to know before you go.
Cheapest flight foundR 537
Cheapest month to flySeptember
Average flight time1 hr, 51 mins
Most popular airlineSouthwest Airlines
Average flights per week337

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

The best price we found for a return flight from Phoenix Sky Harbor to Denver International is R 1,593. 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.
1 hour and 51 minutes is the average flight time from Phoenix Sky Harbor to Denver International.
Southwest Airlines, United and American Airlines fly direct from Phoenix Sky Harbor to Denver International.
As of June 2026, there are 337 flights per week flying from Phoenix Sky Harbor to Denver International.
The cheapest month to fly from Phoenix Sky Harbor to Denver International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phoenix Sky Harbor Airport to Denver International Airport on Monday, 10 August 2026.
Yes – the average flight time is 1 hour and 51 minutes.
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 Denver International 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 Denver 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 Denver International.

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

  • Jump on a direct flight from Phoenix Sky Harbour Airport to Denver International Airport and you'll be travelling for an average of 1 hour 50 minutes.

  • Phoenix and Denver are in the same timezone, UTC-7.

  • You can choose from 131 weekly Phoenix Sky Harbour Airport to Denver International Airport flights. The 05:00 departure with United Airlines is the earliest flight available. Southwest Airlines operates the last service of the day at 22:55.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to board your PHX to DEN flight.

  • Be prepared for bigger queues during popular months such as April. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

  • You'll find a variety of airlines operating direct flights from Phoenix Sky Harbour Airport to Denver International Airport. When you're ready to kick off your Denver holiday, let one of these carriers fly you to this must-see part of the United States:

  • The airline with the highest passenger demand on this route is United.

  • United leads the way as the most punctual carrier for PHX to DEN flights, with 86.56% of its services landing as scheduled.

  • If you'd like to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Phoenix Sky Harbour Airport to Denver International Airport. Here are the most popular stopovers between PHX and DEN:

    • Salt Lake City Airport

    • Albuquerque Airport

    • Tucson International Airport

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

  • The lowest price we've found for a one-way Phoenix Sky Harbour Airport to Denver International Airport flight is R 537. A return fare is currently R 1,593. Depending on the availability and when you book, these fares can change.

  • To pick up cheap tickets from PHX to DEN, book early. Airlines usually offer their best fares when flights are first released.

  • Schedule your trip for May. That's the cheapest month for flights from Phoenix Sky Harbour Airport to Denver International Airport. If you're flexible on when you fly, try out the 'Whole month' tool to see the lowest airfare across each month.

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

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

Handy information about Phoenix Sky Harbour Airport (PHX)

  • You'll find PHX at 3400 Sky Harbour Boulevard.

  • 80% of flights leaving Phoenix Sky Harbour Airport arrive at their destination according to schedule. With its solid on-time performance, delays are unlikely when setting off from PHX.

  • Phoenix Sky Harbour Airport is around 5 kilometres from central Phoenix. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 10 minutes or so to get there, depending on the traffic.

  • The journey when using public transport takes roughly 25 minutes.

  • Get your travels off to a stress-free start by staying near PHX. Whether you're taking an early flight from Phoenix Sky Harbour Airport to Denver International Airport or want to avoid feeling rushed, these stays are perfect:

Arriving at Denver International Airport (DEN)

  • Consider a stay at Baymont by Wyndham Denver International Airport after touching down from your Phoenix Sky Harbour Airport to Denver International Airport flight. It's a quick drive from DEN and a comfortable option if you're eager to freshen up right away.

  • Travel at your own speed with a Denver International Airport rental car. Book your wheels from Routes Car Rentals, Dollar or Budget and experience more of Denver and beyond.

  • To get the lowest price, reserve your vehicle from Denver International Airport around one week before your trip.

When to fly to Denver International Airport (DEN)

  • July is the most popular month for flights from Phoenix Sky Harbour Airport to Denver International Airport. To avoid the crowds, head to Denver in January.

  • The warmest month in Denver is July, with temperatures ranging between 14ºC (57ºF) and 32ºC (90ºF). Book your flights from Phoenix Sky Harbour Airport to Denver International Airport in this month if you like this kind of weather.

  • If you'd rather travel in cooler conditions, search for a cheap ticket from PHX to DEN in January. Temperatures average between -9ºC (16ºF) and 7ºC (45ºF) then.

Explore more of the United States

  • Colorado Springs is just one of the many places in the United States waiting to be discovered once you've taken in the sights of Denver. Around 105 kilometres away to the south, its top attractions include Garden of the Gods, Pikes Peak Region Attractions and Red Rock Canyon.

  • Aurora is another standout destination in the United States and is around 13 kilometres east of Denver. No trip is complete without dropping by Plains Conservation Centre, DeLaney Homestead Historic District and Aircraft viewing.

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