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$38+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
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 78 days in advance, depart on a Wednesday or Saturday 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 December 14, 2025.

This Frontier deal was found by Cheapflights users on 12/12. 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.
Wed 12/3110:29 pmDEN - PHX
Nonstop2h 00mFrontier
Thu 1/17:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 12/12$78
This CheapOair deal was found by Cheapflights users on 12/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:15 amDEN - PHX
Nonstop2h 06mFrontier
Wed 12/317:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 12/14$79
This Super.com deal was found by Cheapflights users on 12/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 amDEN - PHX
Nonstop2h 06mFrontier
Mon 1/510:31 pmPHX - DEN
Nonstop1h 54mFrontier
Deal found 12/13$99
This Expedia deal was found by Cheapflights users on 12/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:35 amDEN - PHX
1 stop12h 32mFrontier
Tue 1/67:39 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 12/14$110
This Frontier deal was found by Cheapflights users on 12/12. 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.
Wed 12/3110:37 pmDEN - PHX
1 stop10h 11mFrontier
Wed 1/77:39 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 12/12$111
This Frontier deal was found by Cheapflights users on 12/11. 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.
Thu 12/256:15 amDEN - PHX
Nonstop2h 06mFrontier
Wed 1/74:41 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 12/11$113
This Frontier deal was found by Cheapflights users on 12/11. 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 12/236:35 amDEN - PHX
1 stop10h 10mFrontier
Fri 1/97:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 12/11$115
This Frontier deal was found by Cheapflights users on 12/11. 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.
Thu 12/256:15 amDEN - PHX
Nonstop2h 06mFrontier
Fri 1/96:25 pmPHX - DEN
Nonstop1h 55mFrontier
Deal found 12/11$118
This Frontier deal was found by Cheapflights users on 12/14. 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 12/306:35 amDEN - PHX
1 stop10h 10mFrontier
Thu 1/17:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 12/14$120
This Frontier deal was found by Cheapflights users on 12/11. 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.
Wed 12/2412:00 pmDEN - PHX
1 stop7h 07mFrontier
Thu 1/89:22 pmPHX - DEN
Nonstop1h 57mFrontier
Deal found 12/11$121
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 12/195:14 pmDEN - AZA
1 stop29h 11mMultiple Airlines
Fri 12/266:00 amAZA - DEN
1 stop10h 07mMultiple Airlines
Deal found 12/12$582
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 12/2511:04 amDEN - AZA
2 stops21h 28mMultiple Airlines
Tue 12/303:32 pmAZA - DEN
1 stop29h 34mMultiple Airlines
Deal found 12/12$583

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 December 14, 2025.

Round-trip from

$70
(Kiwi.com)

One-way from

$38
(Super.com)

Popular in

November

Cheapest in

January

Average price

$188
From Denver Intl to Phoenix
Search Deals
One-way flight from Denver Intl to Phoenix
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 14, 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 1/1

7:37 pm-9:41 pm

Nonstop2h 04m

Phoenix Sky Harbor Intl

Tue 1/6

4:31 pm-6:25 pm

Nonstop1h 54m

$148

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 1/15

12:34 pm-7:25 pm

1 stop6h 51m

Phoenix Sky Harbor Intl

Sun 1/18

3:45 pm-11:58 pm

1 stop8h 13m

$156

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Fri 2/27

6:45 pm-11:42 pm

1 stop4h 57m

Phoenix Sky Harbor Intl

Tue 3/3

12:28 pm-5:48 pm

1 stop5h 20m

$156

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 1/15

12:34 pm-7:25 pm

1 stop6h 51m

Phoenix Sky Harbor Intl

Tue 1/20

3:45 pm-11:58 pm

1 stop8h 13m

$156

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 1/7

4:05 pm-6:06 pm

Nonstop2h 01m

Phoenix Sky Harbor Intl

Sun 1/11

6:45 am-8:41 am

Nonstop1h 56m

$168

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Fri 1/30

12:34 pm-7:25 pm

1 stop6h 51m

Phoenix Sky Harbor Intl

Sun 2/1

8:24 am-6:41 pm

1 stop10h 17m

$176

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Mon 1/19

7:39 pm-2:00 pm

1 stop18h 21m

Phoenix Sky Harbor Intl

Mon 1/26

8:07 pm-11:38 am

1 stop15h 31m

$176

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 12/25

7:10 am-1:23 pm

1 stop6h 13m

Phoenix Sky Harbor Intl

Wed 12/31

6:35 am-11:00 am

1 stop4h 25m

$177

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 3/12

7:05 pm-8:14 pm

Nonstop2h 09m

Phoenix Sky Harbor Intl

Sun 3/15

6:55 pm-9:50 pm

Nonstop1h 55m

$183

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sun 1/25

7:00 am-8:55 pm

1 stop13h 55m

Phoenix Sky Harbor Intl

Wed 1/28

1:16 pm-11:35 pm

1 stop10h 19m

$183

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 40 results
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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 December 12, 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 78 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 December 14, 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 at noon, which can drop the price by up to 52% versus a flight in the evening.

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 at noon when fares are most often at their lowest. Sunday afternoons 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 December 14, 2025.

The most flights from DEN to PH1 are scheduled on a Friday (37 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (12 on average).

How often are flights from Denver to Phoenix delayed?

About 19% of weekly flights between Denver and Phoenix have experienced delays in the past year, with the average delay time being 129 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, American 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
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

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 December 14, 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
7.9
Good
4,251 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,251 reviews
Southwest
7.9
Good
4,251 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,007 reviews
Southwest
7.9
Good
4,251 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,094 reviews
Southwest
7.9
Good
4,251 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,054 reviews
Southwest
7.9
Good
4,251 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,081 reviews
Southwest
7.9
Good
4,251 reviews

Comfort

8.0

Food

7.0

Overall

7.9

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 $148, United Airlines can have you in Phoenix from Denver in 2h 04m. 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 $49, 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 72% 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 $30. American Airlines flights start at $68 while deals on Southwest start at $69 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: Alaska Airlines (81%), Lufthansa (80%), United Airlines (80%).

  • What are the cheapest flights from Denver to Phoenix?

    On average you can expect to pay $301 for a flight from Denver to Phoenix. The cheapest flight overall is $29 while the most popular route, (Denver Intl - Phoenix Sky Harbor Intl) is currently priced at $53.

  • 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

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Alternative routes for Denver to Phoenix

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$152FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$137Average$343FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$137Average$243FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$144Average$249FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$297FlexibilityNo cancel feeOn-timeN/A

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