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Sky Harbor Intl

$38+ Cheap flights from Colorado 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Colorado to Sky Harbor Intl

Cheapest flights from Colorado to Sky Harbor Intl
Explore the most affordable flight options available from Colorado to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Frontier deal was found by Cheapflights users on 12/15. 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 12/2512:26 pmDEN - PHX
Nonstop2h 07mFrontier
Thu 1/17:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 12/15$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 Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:26 pmDEN - PHX
Nonstop2h 07mFrontier
Mon 1/510:31 pmPHX - DEN
Nonstop1h 54mFrontier
Deal found 12/14$99
This Frontier deal was found by Cheapflights users on 12/15. 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
Tue 1/67:39 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 12/15$110
This Frontier deal was found by Cheapflights users on 12/15. 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 1/78:05 amPHX - DEN
Nonstop1h 57mFrontier
Deal found 12/15$111
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:37 pmDEN - PHX
1 stop10h 11mFrontier
Thu 1/17:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 12/14$120
This CheapOair deal was found by Cheapflights users on 12/15. 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.
Wed 12/2412:26 pmDEN - PHX
Nonstop2h 07mFrontier
Tue 12/306:00 amPHX - DEN
1 stop16h 44mFrontier
Deal found 12/15$121
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:29 pmDEN - PHX
Nonstop2h 00mFrontier
Tue 1/67:39 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 12/14$122
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:29 pmDEN - PHX
Nonstop2h 00mFrontier
Sun 1/47:00 amPHX - DEN
Nonstop1h 55mFrontier
Deal found 12/14$126
This United Airlines deal was found by Cheapflights users on 12/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:25 pmMTJ - PHX
1 stop7h 24mUnited Airlines
Thu 1/18:10 amPHX - MTJ
1 stop6h 34mUnited Airlines
Deal found 12/15$211
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/303:24 pmHDN - PHX
1 stop8h 05mAmerican Airlines
Thu 1/15:00 amPHX - HDN
1 stop7h 30mAmerican Airlines
Deal found 12/15$211
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:34 pmMTJ - PHX
1 stop4h 45mUnited Airlines
Mon 12/296:45 amPHX - MTJ
1 stop5h 53mUnited Airlines
Deal found 12/12$215

Find flight deals from Colorado to Sky Harbor Intl

Keep the following information in mind while searching for Colorado to Sky Harbor Intl flight deals. Data was last updated December 15, 2025.

Round-trip from

$69
(Frontier)

One-way from

$38
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$188

Good round-trip deal

$120 or less

Good one-way deal

$73 or less
From Colorado to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Colorado to Phoenix Sky Harbor Intl
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Highest demand for flights based on searches. 9% potential increase in price ($18 potential increase over avg. RT price).
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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
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Price to beat on a round-trip flight from Colorado to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Colorado to Phoenix Sky Harbor Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 December 15, 2025.
Use the filters below to find and compare flights from Colorado to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Colorado

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 1/17

12:34 pm-7:25 pm

1 stop6h 51m

Phoenix Sky Harbor Intl

Wed 1/21

3:45 pm-11:58 pm

1 stop8h 13m

$136

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 1/17

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

$136

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 1/14

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

$136

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 2/19

10:29 pm-12:22 pm

1 stop13h 53m

Phoenix Sky Harbor Intl

Sat 2/21

8:19 am-3:56 pm

1 stop7h 37m

$146

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 1/10

8:04 am-2:00 pm

1 stop5h 56m

Phoenix Sky Harbor Intl

Sat 1/17

3:45 pm-11:58 pm

1 stop8h 13m

$147

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

Tue 1/6

6:48 pm-11:53 pm

1 stop5h 05m

Phoenix Sky Harbor Intl

Tue 1/13

3:45 pm-11:58 pm

1 stop8h 13m

$158

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sun 1/18

12:34 pm-7:25 pm

1 stop6h 51m

Phoenix Sky Harbor Intl

Sat 1/24

3:45 pm-11:58 pm

1 stop8h 13m

$166

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 1/29

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 60 results
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Best time to book a flight from Colorado to Sky Harbor Intl

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

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

Currently, February is the cheapest month in which you can book a flight from Colorado to Phoenix Sky Harbor Intl Airport (average of $56). Flying from Colorado to Phoenix Sky Harbor Intl Airport 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 CO to PHX?

Find hourly flight availability from Colorado 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 December 15, 2025.

It’s optimal to fly from Colorado to Phoenix Sky Harbor Intl Airport in the evening. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Colorado to Sky Harbor Intl. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Colorado to Phoenix Sky Harbor Intl Airport flight should consider departing on Wednesday evenings 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 Colorado to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Colorado 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 December 15, 2025.

The most flights from USCO to PHX are scheduled on a Monday (48 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (12 on average).

Related info for your journey

Find useful and relevant information for your journey from Colorado 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.

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

    Airlines like Alaska Airlines, Frontier, and Denver Air Connection fly from Colorado to Phoenix Sky Harbor Intl Airport in about 1h 50m. The time it takes to get you to your destination can typically vary by up to 12h 03m. The distance between Colorado and Phoenix Sky Harbor Intl Airport is about 327 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Colorado 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 $32. Users have also found prices from $68 and $69 on American Airlines and Southwest, respectively.

  • What are the most popular routes from Colorado to Phoenix Sky Harbor Intl Airport?

    When deciding which route to take from Colorado to Phoenix Sky Harbor Intl Airport consider Denver Intl - Phoenix Sky Harbor Intl, Colorado Springs - Phoenix Sky Harbor Intl or Grand Junction Regnl - Phoenix Sky Harbor Intl as they are the most popular.

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

    No one likes to see their flight delayed. When booking a flight from Colorado to Phoenix Sky Harbor Intl Airport consider choosing Alaska Airlines (81%), Lufthansa (80%) or United Airlines (80%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Colorado to Phoenix Sky Harbor Intl Airport is generally $301, our data shows the cheapest flight currently is $29. When looking at the most popular route, (Denver Intl - Phoenix Sky Harbor Intl), you can expect to pay $53 for that flight.

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

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

  • How can I find direct flights from Colorado 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 Colorado to Sky Harbor Intl.

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

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

    Currently, February is the cheapest month in which you can book a flight from Colorado to Phoenix Sky Harbor Intl Airport (average of $56). Flying from Colorado to Phoenix Sky Harbor Intl Airport 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

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
Paradise Valley
Glendale
Casa Grande
Chandler
Payson
Globe
Peoria
Camp Verde
Buckeye
Surprise
Avondale
Guadalupe

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Alternative routes for Colorado to Sky Harbor Intl

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Top 6 airlines flying from Colorado to Sky Harbor Intl

Discover the top 6 airlines that operate flights from Colorado 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$156FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$136Average$423FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$137Average$462FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$144Average$303FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$297FlexibilityNo cancel feeOn-timeN/A
Denver Air ConnectionCheapest$238Average$408FlexibilityNo cancel feeOn-timeN/A

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