$57 Find Cheap Flights from Denver to Phoenix

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Phoenix departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Phoenix

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Phoenix, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Phoenix, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$92
Typical prices: $118-$233
Frontier
Fri 4/10Tue 4/14
DEN - PHX • Non-stop
Cheapest one-way
$58
Typical prices: $86-$143
Frontier
Thu 4/2
DEN - PHX • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier's Economy Bundle includes a carry-on bag.
PHX offers easy access to downtown via the Sky Train.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with American Airlines, Frontier and others. Average duration is 2h 03m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 59% average savings
Most popular
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Phoenix!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Denver to Phoenix (DEN-PHX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Phoenix that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Phoenix

Fri, Apr 10 - Tue, Apr 14
Frontier Logo
6:30 am - 7:36 am
DEN
-
PHX
2h 06mnonstop
Frontier Logo
6:50 am - 9:43 am
PHX
-
DEN
1h 53mnonstop
$92Frontier
Wed, Apr 1 - Mon, Apr 6
Frontier Logo
10:35 pm - 11:42 pm
DEN
-
PHX
2h 07mnonstop
Frontier Logo
9:32 pm - 12:28 am
PHX
-
DEN
1h 56mnonstop
$93Frontier
Mon, Apr 27 - Mon, May 4
Frontier Logo
7:11 pm - 8:16 pm
DEN
-
PHX
2h 05mnonstop
Frontier Logo
9:24 pm - 12:20 am
PHX
-
DEN
1h 56mnonstop
$94Frontier
Wed, Apr 8 - Wed, Apr 15
Frontier Logo
10:30 pm - 1:37 pm
DEN
-
PHX
16h 07m
1 stop
Frontier Logo
6:51 pm - 9:44 pm
PHX
-
DEN
1h 53mnonstop
$95Frontier
Tue, Apr 7 - Wed, Apr 15
Frontier Logo
4:40 pm - 5:47 pm
DEN
-
PHX
2h 07mnonstop
Frontier Logo
6:51 pm - 9:44 pm
PHX
-
DEN
1h 53mnonstop
$96Frontier
Thu, Apr 16 - Tue, Apr 21
Frontier Logo
10:35 pm - 11:42 pm
DEN
-
PHX
2h 07mnonstop
Frontier Logo
6:50 am - 9:43 am
PHX
-
DEN
1h 53mnonstop
$97Frontier
Fri, Apr 10 - Fri, Apr 17
Frontier Logo
7:09 pm - 8:14 pm
DEN
-
PHX
2h 05mnonstop
Frontier Logo
9:24 pm - 12:20 am
PHX
-
DEN
1h 56mnonstop
$98Frontier
Mon, Apr 6 - Thu, Apr 9
Frontier Logo
7:22 pm - 8:27 pm
DEN
-
PHX
2h 05mnonstop
Frontier Logo
5:06 pm - 8:03 pm
PHX
-
DEN
1h 57mnonstop
$99Frontier
Sun, Apr 12 - Sun, Apr 19
Multiple Airlines Logo
10:45 am - 9:09 pm
DEN
-
AZA
11h 24m
1 stop
Multiple Airlines Logo
11:50 am - 2:55 pm
AZA
-
DEN
26h 05m
1 stop
$261Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
9:10 am - 10:27 pm
DEN
-
AZA
14h 17m
1 stop
Multiple Airlines Logo
10:00 am - 3:59 am
AZA
-
DEN
16h 59m
2 stops
$265Multiple Airlines
Booking Insights

KAYAK's insights & trends for Denver to Phoenix flights

Get data-powered insights and trends into flights from Denver to Phoenix to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Denver to Phoenix?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Phoenix departing in April.

What is the cheapest Denver to Phoenix flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Denver to Phoenix costs $74 on the route between Denver (DEN) and Phoenix Sky Harbor Intl Airport (PHX). Over the past month, this route was, on average, 59% cheaper than other Denver-Phoenix routes. It is also the most popular route.

What’s the cheapest day of the week to fly from Denver to Phoenix?

The average price of all round-trip flights from Denver to Phoenix clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Denver to Phoenix, look for departures on Saturdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Phoenix, Thursday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Denver to Phoenix?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Phoenix, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Phoenix is September, where tickets cost $158 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $221 and $212 respectively.

How far in advance should I book a flight from Denver to Phoenix?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Phoenix, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Phoenix, you should book around 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Phoenix

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Laura Ratliff

Laura Ratliff

Expert on PHX

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Good to know

Cheapest flight$58
Flight from Denver to Phoenix Sky Harbor Airport

When to book flights from Denver to Phoenix

Are your dates flexible? Find out the best times to travel from Denver to Phoenix based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Phoenix

  • Which kid-friendly airline should I consider for my flight from Denver and Phoenix?

    Among the kid-friendly airlines connecting from Denver and Phoenix, you may have to prioritize Frontier. The airline's “Kids Fly Free” program allows travelers who are members of the Discount Den travel club to travel with kids under 15 at no cost.

  • Which eco-friendly airline should I consider for my flight from Denver and Phoenix?

    To fly with an eco-friendly airline from Denver and Phoenix, prioritize pre-booking your flight with Allegiant Air. The airline has significantly reduced its environmental impact by utilizing fuel-efficient aircraft, optimizing flight patterns, and implementing recycling programs.

  • Which airlines operating from Denver and Phoenix highly consider Persons with Reduced Mobility (PRMs)?

    While all modern airlines consider PRMs, Allegiant Air and Frontier offer some of the best accessibility features, even though the majority of airlines that fly from Denver and Phoenix take PRMs into account. These airlines grant priority boarding to PRMs to ensure comfort and inclusion during flights. Additionally, they have a team of well-trained and experienced staff whose primary duty is to ensure PRM-accessible services.

  • Which pet-friendly airline can I travel with from Denver and Phoenix with my pet?

    Sun Country Air is among the few pet-friendly airlines to consider for my flight from Denver and Phoenix with my furry friend. The airline's pet-friendly policy allows small caged pets weighing under 20 lbs to travel in-cabin, provided their carriers fit under the owners' seats. The policy also allows larger pets to travel in a pressure and temperature-controlled cargo hold as cargo.

  • What is the cheapest flight from Denver to Phoenix?

    In the last 3 days, the lowest price for a flight from Denver to Phoenix was $58 for a one-way ticket and $92 for a round-trip.

  • Do I need a passport to fly between Denver and Phoenix?

    A passport is required to fly from Denver to Phoenix.

  • Which airports will I be using when flying from Denver to Phoenix?

    When flying out of Denver you will be using Denver Intl. You will be landing at one of these airports: Phoenix-Mesa Gateway or Phoenix Sky Harbor Intl.

  • Which aircraft models fly most regularly from Denver to Phoenix?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Phoenix?

    Star Alliance, and oneworld are the airline alliances operating flights between Denver and Phoenix, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Denver to Phoenix?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Phoenix.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Phoenix?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Phoenix?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phoenix with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Phoenix?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phoenix from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Phoenix

  • Travelers connecting from Denver to Phoenix on a fixed budget can consider booking their flights with Frontier Airlines. Besides offering direct flights from Denver Intl (DEN) to Phoenix Sky Harbor Intl (PHX), Frontier is a low-cost carrier offering flights on a no-frills basis to maintain the low baseline ticket and optional additional amenities that may necessitate extra payment.
  • United and Frontier are the primary airlines with hubs at Denver Intl (DEN). These two are ranked among the airlines with the highest number of flights from DEN to various destinations, including Phoenix. To access a flight option that may fit your travel schedule from Denver to Phoenix, you should consider either of these two airlines.
  • You should think about traveling with Frontier or South West Airlines if you need to make last-minute travel from Denver to Phoenix. These two airlines are among those that offer the most regular direct flights between Denver and Phoenix.
  • Although most airlines offer direct flights from Denver to Phoenix, some – like Delta, Frontier, and Spirit Airlines – may also offer a number of indirect flights. Some of the common stops for these airlines are Las Vegas Harry Reid Intl (LAS), Salt Lake City (SLC), and Los Angeles (LAX).
  • Besides Phoenix, passengers connecting to other nearby cities use Phoenix Sky Harbor Intl (PHX) as their final destination. Chandler, Scottsdale, and Tempe are a few of these cities. Since most cities are only a short drive from PHX, you may reach them conveniently with a rental vehicle, a taxi, or a ride-sharing service.

Prefer to fly direct from Denver to Phoenix?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Phoenix.
Find which airlines fly direct from Denver Intl Airport to Phoenix, which days they fly and book direct flights.

Direct departures

Denver Intl to Phoenix

Monday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Wednesday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Thursday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Friday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Sunday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

See more direct flights

Direct returns

Phoenix to Denver Intl

Monday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Tuesday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Wednesday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Thursday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Friday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Saturday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

Sunday

American Airlines,Frontier,Southwest, +1 more

American Airlines,Frontier, +2 more

See more direct flights

Reviews of the top 4 airlines serving from Denver to Phoenix

 
See real verified KAYAK customer reviews for airlines flying from Denver to Phoenix. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Phoenix? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4318 reviews
7.5Entertainment
8.1Boarding
8.0Comfort
7.0Food
8.6Crew
Airline reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

4.0 OkayKenny, Mar 2026
TPA - BWI
Read more Southwest reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

The flight was fine, once we got underway. It was more than hour delayed

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

It would be nice to have some low carb options in the snacks.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

I love American. I’ll never fly anyone else if I can help it.

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Not clean and was told I would get a great seat and it was not great at all

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Everything you need to know for your flight from Denver to Phoenix

Information on your arrival and departure airports