$54 Find Cheap Flights from Denver to Phoenix - Compare and Save

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 7/7. 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
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Everything you should know

Cheapest round-trip
$113
Typical prices: $246-$141
Frontier
Fri 7/31Wed 8/5
DEN - PHX • Non-stop
Cheapest one-way
$54
Typical prices: $102-$203
Frontier
Tue 7/7
DEN - PHX • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier Economy Bundle adds a carry-on and seat choice; American Basic Economy cuts perks.
United Economy Plus adds legroom, while Frontier Premium Bundle adds boarding perks.
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Top airlines
Cheapest • from $113 (round-trip)
Best reviews • 7.9 score
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+1
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+1
Nonstop flights
You can fly direct with American Airlines, Frontier and others. Average duration is 1h 56m
Direct flights
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+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 41% average savings
Most popular
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Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 32% compared to booking last minute.
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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, Jul 31 - Wed, Aug 5
Frontier Logo
9:15 am - 10:11 am
DEN
-
PHX
1h 56mnonstop
Frontier Logo
4:49 pm - 7:47 pm
PHX
-
DEN
1h 58mnonstop
$113Frontier
Sat, Sep 12 - Fri, Sep 18
Frontier Logo
4:33 pm - 5:40 pm
DEN
-
PHX
2h 07mnonstop
Frontier Logo
6:40 am - 9:35 am
PHX
-
DEN
1h 55mnonstop
$114Frontier
Fri, Aug 21 - Mon, Aug 24
Frontier Logo
9:01 am - 10:02 am
DEN
-
PHX
2h 01mnonstop
Frontier Logo
8:40 am - 11:43 am
PHX
-
DEN
2h 03mnonstop
$115Frontier
Sat, Aug 29 - Mon, Aug 31
Frontier Logo
2:13 pm - 3:14 pm
DEN
-
PHX
2h 01mnonstop
Frontier Logo
8:40 am - 11:43 am
PHX
-
DEN
2h 03mnonstop
$116Frontier
Fri, Aug 7 - Mon, Aug 10
Frontier Logo
10:36 pm - 11:27 pm
DEN
-
PHX
1h 51mnonstop
Frontier Logo
4:48 pm - 7:46 pm
PHX
-
DEN
1h 58mnonstop
$117Frontier
Fri, Jul 24 - Mon, Jul 27
Frontier Logo
10:36 pm - 11:32 pm
DEN
-
PHX
1h 56mnonstop
Frontier Logo
8:40 am - 11:38 am
PHX
-
DEN
1h 58mnonstop
$118Frontier
Wed, Aug 5 - Fri, Aug 7
Frontier Logo
11:41 am - 12:40 pm
DEN
-
PHX
1h 59mnonstop
Frontier Logo
6:40 am - 9:39 am
PHX
-
DEN
1h 59mnonstop
$119Frontier
Sat, Aug 1 - Wed, Aug 5
Frontier Logo
9:15 am - 10:11 am
DEN
-
PHX
1h 56mnonstop
Frontier Logo
1:35 pm - 4:34 pm
PHX
-
DEN
1h 59mnonstop
$120Frontier
Mon, Aug 24 - Sun, Aug 30
Multiple Airlines Logo
10:46 am - 4:39 pm
DEN
-
AZA
6h 53m
1 stop
Multiple Airlines Logo
8:20 am - 12:23 pm
AZA
-
DEN
27h 03m
1 stop
$245Multiple Airlines
Wed, Aug 19 - Mon, Aug 24
Multiple Airlines Logo
4:59 pm - 1:41 pm
DEN
-
AZA
21h 42m
1 stop
Multiple Airlines Logo
7:43 pm - 3:58 am
AZA
-
DEN
31h 15m
2 stops
$270Multiple 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 July.

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 $129 on the route between Denver (DEN) and Phoenix Sky Harbor Intl Airport (PHX). Over the past month, this route was, on average, 41% 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 August, where tickets cost $63 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $492 and $407 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 32% 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$54
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 5 days, the lowest price for a flight from Denver to Phoenix was $54 for a one-way ticket and $113 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Denver and Phoenix, with oneworld 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 5 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.
7.9
SouthwestOverall score based on 4235 reviews
8.0Comfort
7.0Food
8.1Boarding
8.6Crew
7.5Entertainment
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

This planes staff was top tier. Everything went great and had a great flight home.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

It was a short flight so I was expecting too much

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

Seat bottom cushions are not good. I’m 165# & they hurt my butt. Plenty of legroom.

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

The seats need better cushioning for a nearly 5-hour flight, it was a bit uncomfortable. I'm glad American has free wi-fi but there were was a bout 30 minutes in the middle of the flight when there was no connection which was frustrating.

My original flight got delayed day of so I had to rebook it from one layover to two layovers. The flight also left earlier which was a slight inconvenience but manageable. Then my first connection flight got delayed 3 separate times for a total of 2 hours delayed, causing me to miss my second connection flight back to Santa Barbara. Now, because of this missed flight, I am missing my college classes that I pay for.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

On time flight, good communication about boarding, lines didn't form unnecessarily for boarding before their group was announced (kept aisles clear), friendly flight attendants and service

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

You should have had Wifi to make it much enjoyable.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

The gate attendant in Boston had a high raspy voice and spoke much too fast to be understood. Not pleasant.

The flight was delayed for more than 3 hours the flight attendant was so angry, it was my first flight with JetBlue but i don’t think I flight with them again.

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They switched our terminal 3 times and we were delayed for four plus hours!!!

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.

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

Information on your arrival and departure airports