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$54+ Cheap flights from Denver (DEN) to Phoenix

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
Apr 24 — May 11
Fri 4/24
Fri 5/1
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Phoenix are usually found in September or July, booked 56 days in advance, depart on a Saturday or Wednesday and return on a Thursday

Cheap flight deals from Denver to Phoenix

Cheapest flights from Denver to Phoenix
Explore the most affordable flight options available from Denver to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2026.

This Booking.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2110:35 pm
DEN
-
PHX
Nonstop2h 07m
Frontier
Tue 4/286:51 pm
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 3/22$89
This Frontier deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:05 pm
DEN
-
PHX
Nonstop2h 05m
Frontier
Mon 4/276:51 pm
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 3/23$90
This Trip.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/204:40 pm
DEN
-
PHX
Nonstop2h 07m
Frontier
Sat 4/256:50 am
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 3/19$91
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:11 pm
DEN
-
PHX
Nonstop2h 05m
Frontier
Thu 4/309:24 pm
PHX
-
DEN
Nonstop1h 56m
Frontier
Deal found 3/24$92
This Cheapflightsfares deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:11 pm
DEN
-
PHX
Nonstop2h 05m
Frontier
Mon 4/209:24 pm
PHX
-
DEN
Nonstop1h 56m
Frontier
Deal found 3/24$93
This Frontier deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:35 pm
DEN
-
PHX
Nonstop2h 07m
Frontier
Mon 4/209:24 pm
PHX
-
DEN
Nonstop1h 56m
Frontier
Deal found 3/23$94
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:40 pm
DEN
-
PHX
Nonstop2h 07m
Frontier
Wed 4/158:00 am
PHX
-
DEN
1 stop12h 28m
Frontier
Deal found 3/24$95
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:40 pm
DEN
-
PHX
Nonstop2h 05m
Frontier
Mon 4/136:50 am
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 3/24$97
This Cheapflightsfares deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:30 am
DEN
-
PHX
Nonstop2h 06m
Frontier
Sat 5/29:24 pm
PHX
-
DEN
Nonstop1h 56m
Frontier
Deal found 3/23$99
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1510:38 am
DEN
-
PHX
Nonstop2h 07m
Frontier
Sat 4/187:27 am
PHX
-
DEN
1 stop8h 37m
Frontier
Deal found 3/24$102
This Kiwi.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/910:00 am
DEN
-
AZA
1 stop11h 14m
Multiple Airlines
Sun 4/1210:00 am
AZA
-
DEN
1 stop28h 45m
Multiple Airlines
Deal found 3/22$216
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/269:08 am
DEN
-
AZA
1 stop12h 06m
Multiple Airlines
Thu 4/3010:00 am
AZA
-
DEN
1 stop27h 55m
Multiple Airlines
Deal found 3/20$220

Find flight deals from Denver to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Phoenix (PH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 25, 2026.

Round-trip from

$89
(Booking.com)

One-way from

$54
(Expedia)

Popular in

November

Cheapest in

September

Average price

$212
From Denver Intl to Phoenix
Search Deals
One-way flight from Denver Intl to Phoenix
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Phoenix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2026.
Use the filters below to find and compare flights from Denver to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 5/6

1:02 pm-6:26 pm

1 stop6h 24m

Phoenix Sky Harbor Intl

Sun 5/10

6:37 am-12:06 pm

1 stop4h 29m

$216

DenverPhoenix

DEN - AZA

DENAZA

Denver Intl

Thu 4/9

10:00 am-8:14 pm

1 stop11h 14m

Phoenix-Mesa Gateway

Sun 4/12

10:00 am-3:45 pm

1 stop28h 45m

$216

DenverPhoenix

DEN - AZA

DENAZA

Denver Intl

Sun 4/26

9:08 am-8:14 pm

1 stop12h 06m

Phoenix-Mesa Gateway

Thu 4/30

10:00 am-2:55 pm

1 stop27h 55m

$220

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 4/22

8:55 am-2:00 pm

2 stops6h 05m

Phoenix Sky Harbor Intl

Tue 4/28

8:45 am-1:55 pm

1 stop4h 10m

$244

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Tue 4/14

8:55 am-2:00 pm

2 stops6h 05m

Phoenix Sky Harbor Intl

Wed 4/15

8:45 am-1:55 pm

1 stop4h 10m

$253

DenverPhoenix

DEN - AZA

DENAZA

Denver Intl

Thu 5/28

7:40 am-7:14 pm

1 stop12h 34m

Phoenix-Mesa Gateway

Sun 5/31

9:00 am-3:25 am

2 stops17h 25m

$259

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Tue 4/7

8:55 am-2:00 pm

2 stops6h 05m

Phoenix Sky Harbor Intl

Tue 4/21

11:00 am-3:05 pm

1 stop3h 05m

$264

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Tue 4/28

8:55 am-2:00 pm

2 stops6h 05m

Phoenix Sky Harbor Intl

Sun 5/3

7:50 am-12:30 pm

1 stop3h 40m

$278

DenverPhoenix

DEN - AZA

DENAZA

Denver Intl

Mon 4/13

3:55 pm-10:29 pm

1 stop7h 34m

Phoenix-Mesa Gateway

Thu 4/16

10:00 am-9:05 am

2 stops22h 05m

$279

DenverPhoenix

DEN - AZA

DENAZA

Denver Intl

Thu 4/16

9:08 am-8:14 pm

1 stop12h 06m

Phoenix-Mesa Gateway

Sun 4/19

11:50 am-2:55 pm

1 stop26h 05m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Denver to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Phoenix. Price data was last updated on March 13, 2026.

The price you pay for your flight from Denver to Phoenix may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Denver to Phoenix?

Currently, May is the cheapest month in which you can book a flight from Denver to Phoenix (average of $49). Flying from Denver to Phoenix in July is currently the most expensive (average of $97). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to PHX?

Find hourly flight availability from Denver to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2026.

When flying from Denver to Phoenix, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 29% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Denver to Phoenix. Price data was last updated on March 23, 2026.

Travelers seeking maximum savings on their Denver to Phoenix flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Denver to Phoenix

Explore weekly flight availability from Denver to Phoenix. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 25, 2026.

The most flights from DEN to PH1 are scheduled on a Monday (46 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (14 on average).

How often are flights from Denver to Phoenix delayed?

About 20% of weekly flights between Denver and Phoenix have experienced delays in the past year, with the average delay time being 128 minutes.

What is the most punctual flight time for Denver to Phoenix flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Denver to Phoenix flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

The best insider tips for Denver to Phoenix flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Phoenix trip
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Brandon Schultz

Brandon Schultz

Expert on PHX

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phoenix. Reviews last updated March 25, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican Airlines from Denver to Phoenix. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,333 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,477 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,494 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,017 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Denver to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Phoenix?

    Denver Intl (DEN) is the airport you will fly out of if you book a flight from Denver to Phoenix. You should not have trouble finding flights to Phoenix from Denver Intl; the airport handles an average of 37 outbound flights to Phoenix per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Denver airport to Phoenix. It is only a 18.5 mi journey to Denver Intl (DEN) from Denver’s city center.

  • How long is the flight from Denver to Phoenix?

    For as low as $244, Alaska Airlines can have you in Phoenix from Denver in 6h 05m. Denver and Phoenix are separated by a distance of 601 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Denver to Phoenix round-trip?

    Frontier, at $46, was found to be the cheapest airline from Denver to Phoenix.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Frontier is priced at 75% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Denver to Phoenix one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $38. American Airlines flights start at $68 while deals on United Airlines start at $68 one-way.

  • What are the most reliable airlines from Denver to Phoenix?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to Phoenix on time: SkyWest Airlines (100%), Air Canada (87%), Lufthansa (84%).

  • What are the cheapest flights from Denver to Phoenix?

    On average you can expect to pay $517 for a flight from Denver to Phoenix. The cheapest flight overall is $40 while the most popular route, (Denver Intl - Phoenix Sky Harbor Intl) is currently priced at $104.

  • Can I find deals for flights from Denver to Phoenix that include hotel bookings?

    Yes. In addition to deals on Denver to Phoenix flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Phoenix?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Phoenix.

  • Can I find deals for business class flights from Denver to Phoenix?

    Yes. Cheapflights offers flight deals from Denver to Phoenix by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Phoenix?

    Currently, May is the cheapest month in which you can book a flight from Denver to Phoenix (average of $49). Flying from Denver to Phoenix in July is currently the most expensive (average of $97). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Denver to Phoenix

Discover the top 4 airlines that operate flights from Denver to Phoenix. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$46Average$169FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$136Average$334FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$137Average$244FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$148Average$262FlexibilityNo cancel feeOn-time63%

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