HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sky Harbor Intl

$48+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Sky Harbor Intl with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Denver Intl to Phoenix Sky Harbor Intl are usually found in July or August, booked 39 days in advance, depart on a Saturday or Wednesday 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$98
(Frontier)

One-way from

$48
(Cheapflightsfares)

Popular in

March

Cheapest in

July

Average price

$188

Good round-trip deal

$112 or less

Good one-way deal

$82 or less
Provider with most accurate pricing for Denver Intl-Phoenix Sky Harbor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Phoenix Sky Harbor Intl flights.
Search Deals
From Denver Intl to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Denver Intl to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals
Price to beat on a round-trip flight from Denver Intl to Phoenix Sky Harbor Intl.
Search Deals
Price to beat on a one-way flight from Denver Intl to Phoenix Sky Harbor Intl.
Search Deals

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 March 25, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2311:02 amDEN - PHX
Nonstop2h 05mFrontier
Sat 4/265:40 amPHX - DEN
Nonstop1h 56mFrontier
Deal found 3/24$98
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/215:40 pmDEN - PHX
1 stop18h 05mMultiple Airlines
Wed 4/231:14 pmPHX - DEN
Nonstop1h 58mMultiple Airlines
Deal found 3/24$174
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/46:05 amDEN - PHX
1 stop4h 40mSouthwest
Tue 5/66:50 pmPHX - DEN
Nonstop1h 50mSouthwest
Deal found 3/23$182
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/218:09 amDEN - PHX
Nonstop2h 21mAmerican Airlines
Mon 4/2812:35 pmPHX - DEN
Nonstop1h 47mAmerican Airlines
Deal found 3/24$187
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/235:45 amDEN - PHX
1 stop4h 10mDelta
Sat 4/266:00 amPHX - DEN
1 stop4h 08mDelta
Deal found 3/24$197
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/64:00 pmDEN - PHX
1 stop18h 00mContour
Sun 6/810:10 amPHX - DEN
1 stop3h 55mContour
Deal found 3/23$264

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 March 25, 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

Wed 4/23

11:02 am-12:07 pm

Nonstop2h 05m

Phoenix Sky Harbor Intl

Sat 4/26

5:40 am-8:36 am

Nonstop1h 56m

$98

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Tue 4/22

10:53 pm-11:58 pm

Nonstop2h 05m

Phoenix Sky Harbor Intl

Thu 4/24

10:10 am-3:05 pm

1 stop3h 55m

$181

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sun 5/4

6:05 am-9:45 am

1 stop4h 40m

Phoenix Sky Harbor Intl

Tue 5/6

6:50 pm-9:40 pm

Nonstop1h 50m

$182

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Mon 4/21

8:09 am-9:30 am

Nonstop2h 21m

Phoenix Sky Harbor Intl

Mon 4/28

12:35 pm-3:22 pm

Nonstop1h 47m

$187

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Tue 4/15

5:45 am-8:55 am

1 stop4h 10m

Phoenix Sky Harbor Intl

Fri 4/18

6:00 am-11:08 am

1 stop4h 08m

$203

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Fri 6/6

4:00 pm-9:00 am

1 stop18h 00m

Phoenix Sky Harbor Intl

Sun 6/8

10:10 am-3:05 pm

1 stop3h 55m

$264

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 4/19

4:15 pm-5:15 pm

Nonstop2h 00m

Phoenix Sky Harbor Intl

Sun 4/20

6:00 am-8:50 am

Nonstop1h 50m

$307

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Tue 4/22

2:39 pm-3:49 pm

2 stops26h 10m

Phoenix Sky Harbor Intl

Tue 4/29

8:51 pm-11:59 pm

1 stop26h 08m

$311

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 4/23

11:02 am-12:07 pm

Nonstop2h 05m

$49

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 5/21

8:01 am-9:08 am

Nonstop2h 07m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 18 results
1
2

Compare providers for flights from Denver to Sky Harbor Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Sky Harbor Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Phoenix Sky Harbor Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Phoenix Sky Harbor Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Phoenix Sky Harbor Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Phoenix Sky Harbor Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 DEN to downtown Denver, avoiding traffic and parking hassles.

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.

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 March 21, 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 March 25, 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 33% versus a flight in the afternoon.

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 March 23, 2025.

Travelers seeking maximum savings on their Denver to Phoenix Sky Harbor Intl Airport 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 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 March 25, 2025.

The most flights from DEN to PHX are scheduled on a Monday (51 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (21 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 March 25, 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
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,785 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 42 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 $98, 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 American Airlines - these airlines can fly you to your destination from $182 and $187, respectively. Users have found that Frontier is 31% 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 Frontier. According to our data, you can fly for as low as $48. Users have also found prices from $79 and $94 on American Airlines and United Airlines, respectively.

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

    Consider United Airlines (83%), Air Canada (83%) or Frontier (81%) 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 $396, 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 $118 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Chandler
Peoria
Buckeye
Globe
Glendale
Payson
Surprise
Goodyear
Avondale
Paradise Valley
Guadalupe
Litchfield Park
Fountain Hills

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 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$124FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$124Average$238FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$136Average$281FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$136Average$239FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$273FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.