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Sky Harbor Intl

$69+ Cheap flights from Denver (DEN) to Sky Harbor Intl (PHX)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Phoenix Sky Harbor Intl are usually found in August or July, booked 39 days in advance, depart on a Saturday or Thursday and return on a Thursday

Cheap flight deals from Denver to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Sky Harbor Intl (PHX). 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 junio 12, 2025.

Round-trip from

$116
(Cheapflightsfares)

One-way from

$69
(United Airlines)

Popular in

March

Cheapest in

August

Average price

$176

Good round-trip deal

$141 or less

Good one-way deal

$97 or less
From Denver Intl to Phoenix Sky Harbor Intl
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One-way flight from Denver Intl to Phoenix Sky Harbor Intl
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Highest demand for flights based on searches. 10% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Denver Intl to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Denver Intl to Phoenix Sky Harbor Intl.
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Find flight deals from Denver to Sky Harbor Intl

Cheapest flights from Denver to Sky Harbor Intl
Explore the most affordable flight options available from Denver to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/26:35 amDEN - PHX
Nonstop2h 04mFrontier
lun. 10/611:09 amPHX - DEN
Nonstop1h 58mFrontier
Deal found 6/11$116
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/115:00 pmDEN - PHX
1 stop4h 00mSouthwest
sáb. 8/164:05 pmPHX - DEN
Nonstop1h 50mSouthwest
Deal found 6/10$157
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/103:00 pmDEN - PHX
1 stop8h 39mAlaska Airlines
lun. 10/134:17 pmPHX - DEN
1 stop6h 30mAlaska Airlines
Deal found 6/9$186
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/96:25 pmDEN - PHX
1 stop5h 10mDelta
vie. 8/155:20 pmPHX - DEN
1 stop4h 28mDelta
Deal found 6/10$197
This Trip.com deal was found by Cheapflights users on 6/10. 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.
jue. 7/35:40 pmDEN - PHX
1 stop25h 15mContour
lun. 7/711:30 amPHX - DEN
1 stop4h 05mContour
Deal found 6/10$223
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/193:07 pmDEN - PHX
Nonstop1h 58mAmerican Airlines
dom. 9/217:15 pmPHX - DEN
Nonstop1h 46mAmerican Airlines
Deal found 6/11$247
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/1712:59 amDEN - PHX
1 stop11h 32mMultiple Airlines
dom. 7/2011:30 amPHX - DEN
1 stop4h 05mMultiple Airlines
Deal found 6/10$265

Cheapflights Fare Finder

Customize your flight search to find flights from Denver to Sky Harbor Intl 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 junio 12, 2025.
Use the filters below to find and compare flights from Denver to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Denver

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

mar. 9/2

10:05 am-11:01 am

Nonstop1h 56m

Phoenix Sky Harbor Intl

sáb. 9/6

6:25 pm-9:18 pm

Nonstop1h 53m

$117

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

lun. 8/11

5:00 pm-8:00 pm

1 stop4h 00m

Phoenix Sky Harbor Intl

sáb. 8/16

4:05 pm-6:55 pm

Nonstop1h 50m

$157

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

sáb. 8/9

6:25 pm-10:35 pm

1 stop5h 10m

Phoenix Sky Harbor Intl

vie. 8/15

5:20 pm-10:48 pm

1 stop4h 28m

$197

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

jue. 7/3

5:40 pm-5:55 pm

1 stop25h 15m

Phoenix Sky Harbor Intl

lun. 7/7

11:30 am-4:35 pm

1 stop4h 05m

$223

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

jue. 7/17

12:59 am-11:31 am

1 stop11h 32m

Phoenix Sky Harbor Intl

dom. 7/20

11:30 am-4:35 pm

1 stop4h 05m

$265

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

mié. 9/10

8:15 am-9:12 am

Nonstop1h 57m

$69

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

dom. 8/10

6:57 pm-6:52 pm

1 stop24h 55m

$92

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

mié. 6/25

9:36 pm-10:38 pm

Nonstop2h 02m

$98

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

vie. 8/8

5:30 am-8:34 am

1 stop4h 04m

$100

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

jue. 7/3

6:59 pm-7:55 pm

Nonstop1h 56m

$111

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 14 results
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The best insider tips for Denver to Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport trip
Airports
DEN

Use the A Line train for a quick 37-minute ride from Denver Union Station to DEN, running every 15 minutes.

Read more about DENby Emily Zemler
PHX

Take the PHX Sky Train to 44th Street Station for quick access to Downtown Phoenix via light rail in under 20 minutes.

Read more about PHXby Brandon Schultz
Our travel experts
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 Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl 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 Sky Harbor Intl Airport

How far ahead should I book a flight from Denver to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Sky Harbor Intl. Price data was last updated on June 9, 2025.

Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Phoenix Sky Harbor Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Denver to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Denver to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Denver to Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

When flying from Denver to Phoenix Sky Harbor Intl Airport, 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 30% versus a flight in the morning.

What is the cheapest day to fly from Denver to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Denver to Sky Harbor Intl. Price data was last updated on June 8, 2025.

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

Weekly flight availability from Denver to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Denver to Sky Harbor Intl. 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 junio 12, 2025.

The most flights from DEN to PHX are scheduled on a Wednesday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phoenix Sky Harbor Intl Airport ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Phoenix Sky Harbor Intl Airport when rainfall is around 0.0 in.

Temperature in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phoenix Sky Harbor Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. 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 Sky Harbor Intl. Reviews last updated junio 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Denver to Phoenix by reading reviews from past customers. 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Denver to Sky Harbor Intl. 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 Sky Harbor Intl?

    Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly out of when you book flights from Denver to Phoenix Sky Harbor Intl. 5 airlines have flights from Denver Intl to Phoenix Sky Harbor Intl on a regular basis. Booking flights from Denver Intl to Phoenix Sky Harbor Intl should not be difficult; the airport handles an average of 27 outbound flights to Phoenix Sky Harbor Intl per day.

  • What are the cheapest airlines flying from Denver to Phoenix Sky Harbor Intl Airport round-trip?

    Currently priced at $116, Frontier will fly you from Denver to Phoenix Sky Harbor Intl Airport and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Alaska Airlines - these airlines can fly you to your destination from $157 and $186, respectively. Users have found that Frontier is 26% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Denver to Phoenix Sky Harbor Intl Airport one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $69. Users have also found prices from $92 and $98 on Allegiant Air and Frontier, respectively.

  • What are the most reliable airlines from Denver to Phoenix Sky Harbor Intl Airport?

    Consider SkyWest Airlines (100%), Air Canada (76%) or Frontier (75%) when booking your flight. These represent the most reliable airlines when flying from Denver to Phoenix Sky Harbor Intl Airport.

  • What are the cheapest flights from Denver to Phoenix Sky Harbor Intl Airport?

    While on average a flight from Denver to Phoenix Sky Harbor Intl Airport is generally $1,605, our data shows the cheapest flight currently is $50. When looking at the most popular route, (Denver Intl - Phoenix Sky Harbor Intl), you can expect to pay $134 for that flight.

  • Can I find deals for flights from Denver to Sky Harbor Intl that include hotel bookings?

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

  • How can I find direct flights from Denver to Sky Harbor Intl?

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

  • Can I find deals for business class flights from Denver to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Denver to Sky Harbor Intl 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 Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Denver to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Denver to Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl

Discover the top 5 airlines that operate flights from Denver to Sky Harbor Intl. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$134FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$134Average$239FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$136Average$234FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$136Average$278FlexibilityNo cancel feeOn-time69%
DeltaCheapest$196Average$273FlexibilityNo cancel feeOn-timeN/A

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