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Cheap Flights from Phoenix to Denver

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Compare Phoenix to Denver International flight deals

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

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Flight deals from Phoenix to Denver International

Looking for a cheap last-minute deal or the best return flight from Phoenix to Denver International? Find the lowest prices on one-way and return tickets right here.
Denver.$92 per passenger.Departing Wed, 30 Apr, returning Sat, 31 May.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Wed, 30 Apr, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Sat, 31 May, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $92, select.
Denver.$108 per passenger.Departing Thu, 10 Apr, returning Wed, 16 Apr.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Thu, 10 Apr, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Wed, 16 Apr, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $108, select.
Denver.$108 per passenger.Departing Tue, 3 Jun, returning Thu, 5 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Tue, 3 Jun, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Thu, 5 Jun, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $108, select.
Denver.$108 per passenger.Departing Thu, 20 Mar, returning Tue, 25 Mar.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Thu, 20 Mar, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Tue, 25 Mar, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $108, select.
Denver.$116 per passenger.Departing Wed, 21 May, returning Sun, 25 May.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Wed, 21 May, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Sun, 25 May, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $116, select.
Denver.$123 per passenger.Departing Tue, 25 Mar, returning Wed, 2 Apr.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Tue, 25 Mar, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Wed, 2 Apr, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $123, select.
Denver.$131 per passenger.Departing Wed, 28 May, returning Sun, 1 Jun.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Wed, 28 May, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Sun, 1 Jun, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $131, select.
Denver.$139 per passenger.Departing Fri, 4 Jul, returning Mon, 7 Jul.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Phoenix Sky Harbor on Fri, 4 Jul, arriving in Denver International.Inbound direct flight with Frontier Airlines departs from Denver International on Mon, 7 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $139, select.

Find the cheapest month to fly from Phoenix to Denver International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix to Denver International flights are currently cheapest in March.
Mar
from $108
Apr
from $108
May
from $116
Jun
from $108
Jul
from $139
Aug
from $355
Sep
from $422
Oct
from $422
Nov
Find prices
Dec
from $577
Jan
from $424
Feb
Find prices

Direct flights from Phoenix to Denver International

Phoenix to Denver International: Alternative routes

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

Phoenix to Denver: Flight information

The things to know before you go.
Cheapest flight found$92
Cheapest month to flyApril
Average flight time1 hr, 52 mins
Most popular airlineSouthwest Airlines
Average flights per week313

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

The best price we found for a return flight from Phoenix to Denver International is $92. 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 to Denver International.
Southwest Airlines, American Airlines and Alaska Airlines fly direct from Phoenix to Denver International.
As of March 2025, there are 313 flights per week flying from Phoenix to Denver International.
The cheapest month to fly from Phoenix to Denver International is usually March 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Phoenix to Denver International Airport on Wednesday, 30 April 2025.
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.
The cheapest airline that flies to Denver International is Frontier Airlines .

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

  • Kick off your journey at one of Phoenix's main airports, Phoenix Sky Harbour International Airport (PHX) or Phoenix-Mesa Gateway Airport (AZA). Check out your options for booking a flight from Phoenix to Denver International Airport (DEN) taking off from either of these.

  • Take a direct flight from Phoenix to Denver International Airport and you'll be in the air for around 1 hour 52 minutes.

  • Denver International Airport is located in Denver. The city operates in the UTC-6 timezone and is 1 hour ahead of Phoenix.

  • The most popular route is from Phoenix Sky Harbour International Airport (PHX) to Denver International Airport (DEN), with 199 direct weekly services. If you want to head off as soon as possible, the earliest flight from PHX to DEN is the 05:00 Southwest Airlines service. If you prefer to travel later, the last departure is at 23:57 with American Airlines.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Show up at the airport on time to board your flight from Phoenix to DEN.

  • July is a busy month for travelling. If you're heading away then or around a major holiday like Thanksgiving or Christmas, be there even earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international journeys.

Airports in Phoenix

Phoenix Sky Harbour International Airport (PHX)

  • Phoenix Sky Harbour International Airport (PHX) is a convenient option for travelling directly to your destination. Nonstop flights from Phoenix to Denver International Airport (DEN) operate out of this terminal.

  • Choose from a variety of carriers that offer direct flights from Phoenix to Denver International Airport leaving from PHX. Head off on your trip with any of these:

  • From the centre of Phoenix, PHX is approximately 8 kilometres away. Visit the official airport website or use navigation apps to work out the best way to get there.

  • In search of a convenient hotel close to Phoenix Sky Harbour International Airport? If you're boarding an early flight from Phoenix to Denver International Airport, these stays will put you moments from your departure lounge:

About Denver International Airport (DEN)

  • Hop off your flight from Phoenix to Denver International Airport and hop into your hotel bed soon after. If you're looking for a comfortable option a short journey from DEN, stay at SpringHill Suites Denver Airport.

Getting from Denver International Airport (DEN) to central Denver

  • Denver International Airport is approximately 40 kilometres from central Denver. With your own car rental or if you're catching a cab, the drive is about 34 minutes.

  • If you're travelling on public transport, expect a journey time of around 1 hour and 31 minutes.

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

  • The lowest price we've found for a one-way ticket from Phoenix to Denver International Airport is $46. The cheapest price for a return flight is $92. Remember fares can change due to availability at the time of booking.

  • To find flight tickets from Phoenix to DEN, book early. Airlines generally offer their best fares when flights are first made available.

  • Use the 'Whole month' search tool and compare the prices of tickets from Phoenix to Denver International Airport across the month. We've made the lowest fares green, so you can easily find a flight within your budget.

  • Finding a cheap ticket from Phoenix to DEN couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when the price has fallen.

  • Tailor your trip with filters. Choose your arrival and departure times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest' flights from Phoenix to Denver International Airport.

The best time to fly from Phoenix to Denver International Airport (DEN)

  • It's time to pick your travel dates for your flight from Phoenix to Denver International Airport. July is the busiest month to visit Denver. If you like a quieter atmosphere, go in April.

  • The warmest month in Denver is July, with the temperature ranging between 14ºC and 32ºC. Lock in your flights from Phoenix to DEN in this month if this is the type of weather you enjoy.

  • Search for cheap flights from Phoenix to Denver International Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -9ºC and 7ºC on average.

More about Denver

Complete your Denver trip with a car rental

  • Shut down all those tabs and let us do the hard work for you. We can also help you find deals on car rentals in Denver once you've booked your hotel and cheap flight from Phoenix to Denver International Airport. Instantly compare prices in one place and drive away with the perfect rental for less.

Plan the rest of your trip from Phoenix to Denver

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