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Cheap Flights from Phoenix Sky Harbor to Denver International

Your route at a glance

Cheapest dealR 818
Cheapest monthJanuary
Average flight duration1 hour and 52 minutes
Most popular airlineSouthwest Airlines

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 to Denver International? Find the lowest prices on one-way and return tickets right here.
Denver.R 409 per passenger.Departing Tue, 13 Jan.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Tue, 13 Jan, arriving in Denver International.Price includes taxes and charges.From R 409, select.
Denver.R 409 per passenger.Departing Tue, 3 Feb.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Tue, 3 Feb, arriving in Denver International.Price includes taxes and charges.From R 409, select.
Denver.R 495 per passenger.Departing Tue, 3 Mar.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Tue, 3 Mar, arriving in Denver International.Price includes taxes and charges.From R 495, select.
Denver.R 665 per passenger.Departing Wed, 24 Dec.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Wed, 24 Dec, arriving in Denver International.Price includes taxes and charges.From R 665, select.
Denver.R 1,041 per passenger.Departing Tue, 7 Apr.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Tue, 7 Apr, arriving in Denver International.Price includes taxes and charges.From R 1,041, select.
Denver.R 2,003 per passenger.Departing Mon, 18 May.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Mon, 18 May, arriving in Denver International.Price includes taxes and charges.From R 2,003, select.
Denver.R 2,004 per passenger.Departing Thu, 18 Jun.One-way flight with United.Outbound direct flight with United departs from Phoenix Sky Harbor on Thu, 18 Jun, arriving in Denver International.Price includes taxes and charges.From R 2,004, select.
Denver.R 2,004 per passenger.Departing Wed, 16 Sep.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 16 Sep, arriving in Denver International.Price includes taxes and charges.From R 2,004, 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 January.
Dec
from R 665
Jan
from R 409
Feb
from R 409
Mar
from R 495
Apr
from R 1,041
May
from R 2,003
Jun
from R 2,004
Jul
Find prices
Aug
from R 2,175
Sep
from R 2,004
Oct
Find prices
Nov
Find prices

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.

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 818. 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 52 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 December 2025, there are 350 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 January.
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 Saturday, 10 January 2026.
Yes – the average flight time is 1 hour and 52 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.

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

  • The average duration of a direct flight from Phoenix Sky Harbour International Airport to Denver International Airport is 1 hour 50 minutes.

  • Denver's timezone is UTC-6, making Denver one hour ahead of Phoenix.

  • Every week, there are 199 Phoenix Sky Harbour International Airport to Denver International Airport flights. If you want to be on board early, select the 05:00 Southwest Airlines flight. If you're eager to make the most of your day before you fly, the last flight is at 23:57 with American Airlines.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to catch your PHX to DEN flight.

  • You can expect longer lines during popular months such as July. Arriving up to four hours ahead of an international flight and two hours for domestic departures will give you ample time for security and boarding.

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

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

  • United Airlines is the most punctual carrier that operates PHX to DEN flights. A reliable 89.27% of its services on this route arrive on time.

  • Think about adding a stopover when booking your ticket from Phoenix Sky Harbour International Airport to Denver International Airport. Just uncheck 'Direct flights only' to break up your trip, or visit a new city along the way. Check out these options between PHX and DEN:

    • Albuquerque International Sunport Airport

    • Tucson International Airport

    • Salt Lake City International Airport

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

  • The lowest price we've seen for a one-way Phoenix Sky Harbour International Airport to Denver International Airport flight is R 409. A round-trip ticket is currently R 818. Depending on the availability when you book, these fares could change.

  • Score cheap tickets from PHX to DEN by booking at least six months ahead. Based on our research, that's the sweet spot for picking up a bargain.

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

  • Landing cheap flights from PHX to DEN is a cinch with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when fares go down.

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

Handy information about Phoenix Sky Harbour International Airport (PHX)

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

  • Phoenix Sky Harbour International Airport maintains a strong on-time record, reducing the likelihood of delays. Departures from PHX land on schedule 82.57% of the time.

  • To get to Phoenix Sky Harbour International Airport from central Phoenix, it takes around 10 minutes by car. This depends on traffic though. It's approximately 8 kilometres from the airport to the city centre.

  • Taking public transport? Expect a journey time of around 35 minutes.

  • Booked an early flight from Phoenix Sky Harbour International Airport to Denver International Airport? Avoid the hassle of rushing to the terminal (and enjoy a little extra shut-eye) by picking one of these stays close to PHX:

Arriving at Denver International Airport (DEN)

  • After your Phoenix Sky Harbour International Airport to Denver International Airport flight has landed, kick back at a hotel close by. Baymont by Wyndham Denver International Airport is a comfy option within easy reach of DEN.

  • Go wherever you want, whenever you want with a Denver International Airport rental car. Pick up a set of wheels from Routes Car Rentals, Dollar or Budget and find adventure across Denver and beyond.

  • Get the best deal by reserving your ride from Denver International Airport around one week ahead of your trip.

Getting from Denver International Airport (DEN) to central Denver

  • You'll find DEN at 8500 Pena Boulevard.

  • From Denver International Airport, Denver is approximately 40 kilometres away. It takes around 35 minutes to reach the centre driving.

  • Travelling to the centre on public transport takes roughly 1 hour 30 minutes.

When to fly to Denver International Airport (DEN)

  • July is the most popular month for flights from Phoenix Sky Harbour International Airport to Denver International Airport. For a quieter experience, head to Denver in April.

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

  • If you like cooler conditions, search for a cheap ticket from PHX to DEN in January. Average temperatures are between -9ºC (16ºF) and 7ºC (45ºF) then.

Explore more of United States

  • Denver has its own special appeal, but there are so many other corners of United States you'll want to see. About 105 kilometres south of Denver, a trip to Colorado Springs will keep your itinerary busy. Start with popular sights like US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters, Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA).

  • Around 13 kilometres east of Denver, Aurora is another essential stop in United States. Start your sightseeing at Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.