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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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Phoenix are usually found in January or September, booked 88 days in advance, depart on a Saturday or Wednesday and return on a Thursday

Cheap 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 September 25, 2025.

Round-trip from

$87
(Frontier)

One-way from

$54
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$157
From Denver Intl to Phoenix
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One-way flight from Denver Intl to Phoenix
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Highest demand for flights based on searches. 5% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 25, 2025.

This Frontier deal was found by Cheapflights users on 9/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:00 amDEN - PHX
Nonstop2h 04mFrontier
Thu 12/187:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 9/24$87
This Frontier deal was found by Cheapflights users on 9/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:30 pmDEN - PHX
Nonstop2h 00mFrontier
Wed 12/104:12 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 9/24$88
This Frontier deal was found by Cheapflights users on 9/23. 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.
Mon 11/36:20 amDEN - PHX
Nonstop2h 04mFrontier
Thu 11/1310:53 pmPHX - DEN
Nonstop1h 54mFrontier
Deal found 9/23$89
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:20 amDEN - PHX
Nonstop2h 04mFrontier
Sat 11/156:11 pmPHX - DEN
Nonstop1h 53mFrontier
Deal found 9/23$90
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:29 pmDEN - PHX
Nonstop2h 00mFrontier
Thu 11/1310:53 pmPHX - DEN
Nonstop1h 54mFrontier
Deal found 9/23$91
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:02 pmDEN - PHX
Nonstop2h 05mFrontier
Wed 12/177:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 9/23$92
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:55 pmDEN - PHX
Nonstop1h 58mFrontier
Tue 10/77:30 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 9/23$93
This Kiwi.com deal was found by Cheapflights users on 9/22. 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 10/166:55 amDEN - PHX
Nonstop2h 04mFrontier
Mon 10/209:59 pmPHX - DEN
Nonstop1h 57mFrontier
Deal found 9/22$94
This Frontier deal was found by Cheapflights users on 9/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:55 amDEN - PHX
Nonstop2h 04mFrontier
Fri 10/249:59 pmPHX - DEN
Nonstop1h 57mFrontier
Deal found 9/24$95
This Trip.com deal was found by Cheapflights users on 9/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:58 pmDEN - PHX
Nonstop1h 56mFrontier
Mon 10/68:20 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 9/22$96
This Frontier deal was found by Cheapflights users on 9/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:48 amDEN - PHX
Nonstop2h 04mFrontier
Sun 10/267:21 amPHX - DEN
Nonstop1h 57mFrontier
Deal found 9/24$97
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:02 pmDEN - PHX
Nonstop2h 05mFrontier
Mon 12/1510:11 pmPHX - DEN
Nonstop1h 54mFrontier
Deal found 9/23$98

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 September 25, 2025.
Use the filters below to find and compare flights from Denver to Phoenix that are best for you.

Fly from

Denver

Fly to

Phoenix

Route

Depart

Return

Price

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 10/23

6:55 am-7:59 am

Nonstop2h 04m

Phoenix Sky Harbor Intl

Sun 10/26

7:21 am-10:18 am

Nonstop1h 57m

$89

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 10/16

12:59 am-3:05 pm

1 stop15h 06m

Phoenix Sky Harbor Intl

Fri 10/24

7:59 pm-10:55 pm

Nonstop1h 56m

$138

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sun 9/28

6:10 am-11:26 am

1 stop6h 16m

Phoenix Sky Harbor Intl

Mon 10/6

8:20 pm-11:16 pm

Nonstop1h 56m

$146

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 10/25

3:20 pm-4:10 pm

Nonstop1h 50m

Phoenix Sky Harbor Intl

Mon 10/27

7:15 pm-10:00 pm

Nonstop1h 45m

$147

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 11/13

12:59 am-3:03 pm

1 stop14h 04m

Phoenix Sky Harbor Intl

Sun 11/23

10:11 pm-12:04 am

Nonstop1h 53m

$148

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 11/19

7:30 am-6:50 pm

1 stop11h 20m

Phoenix Sky Harbor Intl

Sun 11/23

10:11 pm-12:04 am

Nonstop1h 53m

$148

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 11/19

12:49 pm-6:07 pm

1 stop5h 18m

Phoenix Sky Harbor Intl

Sat 11/22

3:48 pm-11:59 pm

1 stop8h 11m

$157

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 12/18

11:24 am-1:30 pm

Nonstop2h 06m

Phoenix Sky Harbor Intl

Mon 12/22

5:40 pm-7:36 pm

Nonstop1h 56m

$157

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 11/15

7:04 pm-9:21 am

1 stop14h 17m

Phoenix Sky Harbor Intl

Sat 11/22

10:24 am-7:16 pm

1 stop8h 52m

$157

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 12/17

8:00 am-11:25 am

1 stop3h 25m

Phoenix Sky Harbor Intl

Mon 12/22

5:15 am-7:00 am

Nonstop1h 45m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 40 results
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The best insider tips for Denver to Phoenix flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your Denver to Phoenix trip
Airlines
Frontier

Frontier's UpFront Plus seats guarantee an empty middle seat for extra comfort.


Frontier offers Zone 1 boarding with a carry-on bag or special fare bundle purchase.

Read more about Frontierby Marisa Garcia
Southwest

Enjoy free snacks and non-alcoholic beverages, plus a free drink on special occasions onboard.


Southwest offers free messaging and high-speed Wi-Fi for a fee on Wi-Fi-connected planes.

Read more about Southwestby Marisa Garcia
Airports
DEN

For a smooth departure, use the A Line train to reach DEN from downtown in 37 minutes, avoiding traffic and parking hassles.

Read more about DENby Emily Zemler
PHX

For a quick arrival at PHX, take a taxi to downtown Phoenix. It's faster and cheaper than rideshares, with a flat rate fare.

Read more about PHXby Brandon Schultz
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa Garcia

Marisa Garcia

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

Brandon Schultz

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 Zemler

Emily Zemler

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

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 September 19, 2025.

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 88 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, January is the cheapest month in which you can book a flight from Denver to Phoenix (average of $258). Flying from Denver to Phoenix in March is currently the most expensive (average of $337). 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 September 25, 2025.

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 in the evening, which can drop the price by up to 25% versus a flight in the morning.

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 December 16, 2024.

Travelers seeking maximum savings on their Denver to Phoenix flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday mornings 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 September 25, 2025.

The most flights from DEN to PH1 are scheduled on a Thursday (39 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

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 September 25, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United 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
4,246 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,973 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,162 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 24 outbound flights to Phoenix per day. You should also have plenty of airline options to choose from since 5 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 $147, Frontier can have you in Phoenix from Denver in 1h 50m. Denver and Phoenix are separated by a distance of 601 mi. All flights are typically nonstop.

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

    Frontier, at $56, 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 67% lower than the current average price of a flight leaving 3 months from now.

  • 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: Frontier (74%), Air Canada (74%), American Airlines (71%).

  • What are the cheapest flights from Denver to Phoenix?

    On average you can expect to pay $349 for a flight from Denver to Phoenix. The cheapest flight overall is $49 while the most popular route, (Denver Intl - Phoenix Sky Harbor Intl) is currently priced at $88.

  • 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, January is the cheapest month in which you can book a flight from Denver to Phoenix (average of $258). Flying from Denver to Phoenix in March is currently the most expensive (average of $337). 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

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Top 5 airlines flying from Denver to Phoenix

Discover the top 5 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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$140FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$137Average$338FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$137Average$241FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$137Average$243FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$311FlexibilityNo cancel feeOn-timeN/A

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