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Sky Harbor Intl

$53+ 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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
Jun 6 — Jun 131
Sat 6/6
Sat 6/13
1 adult, Economy
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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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Denver Intl to Phoenix Sky Harbor Intl 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 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 May 7, 2026.

This Super.com deal was found by Cheapflights users on 5/4. 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.
Fri 6/58:08 pm
DEN
-
PHX
Nonstop2h 02m
Frontier
Thu 6/116:53 pm
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 5/4$97
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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.
Thu 6/116:45 am
DEN
-
PHX
Nonstop2h 00m
Frontier
Fri 6/126:53 pm
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 5/4$98
This Super.com deal was found by Cheapflights users on 5/3. 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.
Thu 5/288:08 pm
DEN
-
PHX
Nonstop2h 02m
Frontier
Sat 5/304:17 pm
PHX
-
DEN
Nonstop1h 56m
Frontier
Deal found 5/3$99
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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.
Thu 5/289:03 am
DEN
-
PHX
Nonstop2h 02m
Frontier
Thu 6/44:17 pm
PHX
-
DEN
Nonstop1h 56m
Frontier
Deal found 5/4$100
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/209:20 am
DEN
-
PHX
Nonstop2h 01m
Frontier
Sat 6/276:40 am
PHX
-
DEN
Nonstop1h 57m
Frontier
Deal found 5/4$101
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/242:47 pm
DEN
-
PHX
Nonstop2h 01m
Frontier
Wed 7/14:53 pm
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 5/4$102
This Frontier deal was found by Cheapflights users on 5/4. 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 6/58:08 pm
DEN
-
PHX
Nonstop2h 02m
Frontier
Sat 6/66:51 pm
PHX
-
DEN
Nonstop1h 58m
Frontier
Deal found 5/4$103
This Super.com deal was found by Cheapflights users on 5/2. 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.
Thu 5/288:08 pm
DEN
-
PHX
Nonstop2h 02m
Frontier
Tue 6/24:29 pm
PHX
-
DEN
Nonstop1h 56m
Frontier
Deal found 5/2$104
This Super.com deal was found by Cheapflights users on 5/4. 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 5/69:03 am
DEN
-
PHX
Nonstop2h 02m
Frontier
Wed 5/66:51 pm
PHX
-
DEN
Nonstop1h 58m
Frontier
Deal found 5/4$105
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 6/2010:36 pm
DEN
-
PHX
Nonstop1h 53m
Frontier
Fri 6/264:43 pm
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 5/4$106
This Frontier deal was found by Cheapflights users on 5/6. 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 6/179:15 am
DEN
-
PHX
Nonstop2h 01m
Frontier
Wed 6/172:15 pm
PHX
-
DEN
Nonstop1h 55m
Frontier
Deal found 5/6$107
This Frontier deal was found by Cheapflights users on 5/4. 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 6/266:45 am
DEN
-
PHX
Nonstop2h 00m
Frontier
Mon 6/296:53 pm
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 5/4$108

Find 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 May 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$97
(Jettzy)

One-way from

$53
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$190

Good round-trip deal

$168 or less

Good one-way deal

$87 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. 8% potential increase in price ($18 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 May 2026
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

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 May 7, 2026.
Use the filters below to find and compare flights from Denver to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 5/28

8:08 pm-9:10 pm

Nonstop2h 02m

Phoenix Sky Harbor Intl

Fri 6/5

6:51 pm-9:49 pm

Nonstop1h 58m

$110

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 5/20

12:34 pm-11:24 pm

1 stop11h 50m

Phoenix Sky Harbor Intl

Sun 5/24

9:05 am-6:07 pm

1 stop8h 02m

$159

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Fri 6/12

11:32 am-6:11 pm

1 stop7h 39m

Phoenix Sky Harbor Intl

Tue 6/23

3:13 pm-11:30 pm

1 stop7h 17m

$269

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Fri 7/3

7:50 pm-12:10 am

1 stop5h 20m

Phoenix Sky Harbor Intl

Sun 7/5

3:59 pm-11:59 pm

1 stop7h 00m

$286

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 5/13

9:10 am-11:30 am

1 stop3h 20m

Phoenix Sky Harbor Intl

Sat 5/16

4:20 pm-10:05 pm

1 stop4h 45m

$304

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sun 5/10

1:02 pm-6:26 pm

1 stop6h 24m

Phoenix Sky Harbor Intl

Thu 5/14

7:20 am-1:39 pm

1 stop5h 19m

$309

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 5/30

5:50 am-10:15 am

1 stop5h 25m

Phoenix Sky Harbor Intl

Thu 6/4

1:55 pm-9:00 pm

2 stops6h 05m

$317

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Mon 6/1

6:00 am-8:50 am

1 stop3h 50m

Phoenix Sky Harbor Intl

Mon 6/8

1:55 pm-9:00 pm

2 stops6h 05m

$320

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Mon 6/8

7:50 am-11:00 am

1 stop4h 10m

Phoenix Sky Harbor Intl

Mon 6/8

1:55 pm-9:00 pm

2 stops6h 05m

$320

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 6/25

2:40 pm-7:50 pm

2 stops6h 10m

Phoenix Sky Harbor Intl

Mon 6/29

1:55 pm-9:00 pm

2 stops6h 05m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/2

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
eDreamsPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Super.comPrice Accuracy-Trust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy2 starsTrust 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.

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?

Booking 55 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, September is the cheapest month in which you can book a flight from Denver to Phoenix Sky Harbor Intl Airport (average of $162). Flying from Denver to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $224). 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 May 7, 2026.

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 22% versus a flight at noon.

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 May 2, 2026.

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 at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Denver to Phoenix Sky Harbor Intl Airport?

The best insider tips for Denver to Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport 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 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 May 7, 2026.
Read through reviews of airlines operating flights from Denver to Phoenix Sky Harbor Intl Airport, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,301 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

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
7.9
Good
4,301 reviews
Southwest
7.9
Good
4,301 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

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
9,692 reviews
Southwest
7.9
Good
4,301 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

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
11,670 reviews
Southwest
7.9
Good
4,301 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

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.
JetBlue
7.1
Good
2,980 reviews
Southwest
7.9
Good
4,301 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

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
5.6
Fair
2,964 reviews
Southwest
7.9
Good
4,301 reviews

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

7.9

Food

7.0

Boarding

8.1

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 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 35 outbound flights to Phoenix Sky Harbor Intl per day.

  • How long is the flight from Denver to Phoenix Sky Harbor Intl Airport?

    Airlines like Frontier, Alaska Airlines, and Delta fly from Denver to Phoenix Sky Harbor Intl Airport in about 2h 02m. The time it takes to get you to your destination can typically vary by up to 5h 37m. Airlines will cover a distance of 601 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $63, 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 United Airlines and American Airlines - these airlines can fly you to your destination from $136 and $137, respectively. Users have found that Frontier is 67% 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 $36. Users have also found prices from $68 and $68 on American Airlines and United Airlines, respectively.

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

    Consider Air Canada (89%), United Airlines (89%) or SkyWest Airlines (88%) 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 $201, our data shows the cheapest flight currently is $49. When looking at the most popular route, (Denver Intl - Phoenix Sky Harbor Intl), you can expect to pay $160 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, September is the cheapest month in which you can book a flight from Denver to Phoenix Sky Harbor Intl Airport (average of $162). Flying from Denver to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $224). 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 Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Goodyear
Glendale
Paradise Valley
Casa Grande
Buckeye
Peoria
Chandler
Payson
Camp Verde
Globe
Surprise
Guadalupe

Browse thousands of different options on Cheapflights for your next trip

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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 May 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$170FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$136Average$283FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$137Average$251FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$147Average$276FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$174Average$250FlexibilityNo cancel feeOn-time62%

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