$30 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 10/22. 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

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 22% 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.

Flights Deals
Expert advice
Booking Insights
Flights 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

Tue, Sep 16 - Tue, Sep 23
Frontier Logo
8:55 pm - 9:53 pmDEN-PHX
1h 58mnonstop
Frontier Logo
8:00 am - 11:00 amPHX-DEN
2h 00mnonstop
$64Frontier
Find Deal
Thu, Aug 28 - Tue, Sep 2
Frontier Logo
5:05 pm - 6:05 pmDEN-PHX
2h 00mnonstop
Frontier Logo
7:14 am - 10:11 amPHX-DEN
1h 57mnonstop
$67Frontier
Find Deal
Fri, Oct 17 - Sun, Oct 19
Frontier Logo
10:29 pm - 11:29 pmDEN-PHX
2h 00mnonstop
Frontier Logo
8:21 pm - 11:19 pmPHX-DEN
1h 58mnonstop
$68Frontier
Find Deal
Fri, Sep 12 - Tue, Sep 16
Frontier Logo
6:30 am - 7:32 amDEN-PHX
2h 02mnonstop
Frontier Logo
8:00 am - 11:00 amPHX-DEN
2h 00mnonstop
$69Frontier
Find Deal
Fri, Oct 17 - Mon, Oct 20
Frontier Logo
6:22 pm - 7:25 pmDEN-PHX
2h 03mnonstop
Frontier Logo
8:21 pm - 11:19 pmPHX-DEN
1h 58mnonstop
$74Frontier
Find Deal
Tue, Sep 2 - Sat, Sep 6
Frontier Logo
10:05 am - 11:01 amDEN-PHX
1h 56mnonstop
Frontier Logo
8:00 am - 11:00 amPHX-DEN
2h 00mnonstop
$75Frontier
Find Deal
Thu, Aug 28 - Mon, Sep 1
Frontier Logo
5:05 pm - 6:05 pmDEN-PHX
2h 00mnonstop
Frontier Logo
9:19 pm - 12:23 amPHX-DEN
2h 04mnonstop
$77Frontier
Find Deal
Fri, Aug 29 - Sun, Aug 31
Frontier Logo
10:29 pm - 11:24 pmDEN-PHX
1h 55mnonstop
Frontier Logo
7:09 am - 10:06 amPHX-DEN
1h 57mnonstop
$78Frontier
Find Deal
Thu, Sep 25 - Sun, Sep 28
 Logo
10:11 am - 4:14 pmDEN-AZA
7h 03m1 stop
 Logo
8:33 am - 4:54 pmAZA-DEN
7h 21m1 stop
Tue, Dec 23 - Sat, Dec 27
Sun Country Air Logo
6:20 pm - 9:03 amDEN-AZA
14h 43m1 stop
Sun Country Air Logo
8:00 pm - 10:30 amAZA-DEN
14h 30m1 stop
$535Sun Country Air
Find Deal
Expert advice

Expert advice for your flight from Denver to Phoenix

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Frontier

Economy Bundle includes a carry-on bag and standard seat choice, ideal for budget travelers.


Premium Bundle offers priority boarding and extra legroom for a small additional fee.

Read more about Frontierby Stefanie Waldek
United Airlines

Economy Plus offers up to six inches more legroom than standard economy seats.


Priority Boarding places you in Zone 2, ensuring overhead bin space for carry-ons.

American Airlines

Basic Economy offers low fares but includes late boarding and no free checked bags.


Main Cabin Extra provides early boarding and complimentary alcoholic drinks for a small fee.

Airports
DEN

Use the DEN Reserve program for expedited security. Reserve online up to 3 days in advance for slots from 5 a.m. – 5 p.m.

Read more about DENby Harriet Baskas
PHX

PHX offers easy access to downtown via the free Sky Train, connecting to light rail stations and parking garages.

Read more about PHXby Laura Ratliff
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek

Stefanie Waldek

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines and DEN

Harriet Baskas

Harriet Baskas

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.

Read more
Laura Ratliff

Laura Ratliff

Expert on PHX

Laura Ratliff

Laura Ratliff

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.

Read more
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.

What is the cheapest Denver to Phoenix flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Denver to Phoenix.

Our data shows that the cheapest route for a return flight from Denver to Phoenix cost $98 and was between Denver (DEN) and Phoenix Sky Harbor Intl Airport (PHX). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $98.

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 $120 (return) on average. On the other hand, the most expensive months are June and March, where the average cost of round-trip tickets is $198 and $188 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 2 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Cheapest flight$30
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 $30 for a one-way ticket and $64 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, Star Alliance, and SkyTeam 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.
8.0
SouthwestOverall score based on 4241 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

2.0 MediocreAnonymous, Jul 2025AUS - RDU
Read more Southwest reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

I would have liked to arrive on time - not 5 hours late!

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

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.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Had a hard time finding my assigned seat. No attendants to assist.

The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Mechanical delay and no compensation. Missed connection as a result of their delay. Mediocre performance and service. Horrible airline currently with horrible culture.

I miss the screens they used to have for the long flights. I use a Kendal and it doesn’t work well with there WiFi. I tried my cell and the wifi was not good for it either this is the free wifi.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

Any sort of gluten free snack option would be nice

Very friendly and efficient and smooth boarding. We were even way early arriving at my destination. Thank you.

The trip was very smooth and they provided great customer service

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

The seats were crammed and the guy in front of me wouldn't stop reclining. If AA is cramming extra rows in, they need to take away the reclining in coach. My knees were smashed for 4 1/2 hours and I was very close to confronting the passenger in front of me.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

Very bad! No good service delayed my second connection flight

Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

Everything went as planned. Crew was great. Seats were still not that comfortable.

they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation

The seats were extremely hard and uncomfortable, even for a budget airline.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.