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Sky Harbor Intl

$70+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap 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 July 30, 2025.

Round-trip from

$106
(FlightHub)

One-way from

$70
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$163

Good round-trip deal

$137 or less

Good one-way deal

$103 or less
From Colorado to Phoenix Sky Harbor Intl
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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 ($17 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 July 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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Find 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 July 30, 2025.

This FlightHub deal was found by Cheapflights users on 7/29. 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.
Wed 9/310:05 amDEN - PHX
Nonstop1h 56mFrontier
Sun 9/76:18 pmPHX - DEN
Nonstop1h 54mFrontier
Deal found 7/29$106
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 11/187:04 pmDEN - PHX
1 stop4h 12mAlaska Airlines
Wed 11/198:01 amPHX - DEN
1 stop11h 05mAlaska Airlines
Deal found 7/28$156
This Southwest deal was found by Cheapflights users on 7/30. 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.
Sat 8/302:30 pmDEN - PHX
Nonstop1h 55mSouthwest
Mon 9/15:05 amPHX - DEN
Nonstop1h 45mSouthwest
Deal found 7/30$157
This Southwest deal was found by Cheapflights users on 7/28. 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.
Sat 11/110:50 amCOS - PHX
Nonstop1h 55mSouthwest
Thu 11/68:15 pmPHX - COS
Nonstop1h 40mSouthwest
Deal found 7/28$177
This KAYAK deal was found by Cheapflights users on 7/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/209:45 amCEZ - PHX
Nonstop1h 50mDenver Air Connection
Fri 8/226:20 pmPHX - CEZ
Nonstop1h 30mDenver Air Connection
Deal found 7/28$203
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/272:37 pmMTJ - PHX
1 stop8h 12mAmerican Airlines
Tue 9/26:00 amPHX - MTJ
1 stop6h 47mAmerican Airlines
Deal found 7/29$211
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 9/55:55 pmCOS - PHX
1 stop5h 45mDelta
Mon 9/89:55 amPHX - COS
1 stop6h 20mDelta
Deal found 7/28$219
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 11/77:30 amGJT - PHX
Nonstop1h 51mAmerican Airlines
Tue 12/28:47 pmPHX - GJT
Nonstop1h 30mAmerican Airlines
Deal found 7/28$227
This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 10/145:55 amGJT - PHX
1 stop4h 00mDelta
Tue 10/215:15 pmPHX - GJT
1 stop4h 14mDelta
Deal found 7/29$236
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 9/216:00 amCOS - PHX
1 stop4h 12mUnited Airlines
Wed 9/249:30 amPHX - COS
1 stop4h 15mUnited Airlines
Deal found 7/29$237
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 8/203:24 pmMTJ - PHX
1 stop5h 53mUnited Airlines
Tue 8/269:30 amPHX - MTJ
1 stop3h 58mUnited Airlines
Deal found 7/30$257
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 11/64:37 pmCOS - PHX
1 stop8h 02mAmerican Airlines
Mon 11/105:00 amPHX - COS
1 stop6h 45mAmerican Airlines
Deal found 7/30$271

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 July 30, 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

Wed 9/3

10:05 am-11:01 am

Nonstop1h 56m

Phoenix Sky Harbor Intl

Sun 9/7

6:18 pm-9:12 pm

Nonstop1h 54m

$106

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 8/30

7:10 am-8:04 am

Nonstop1h 54m

Phoenix Sky Harbor Intl

Mon 9/1

7:13 pm-10:05 pm

Nonstop1h 52m

$156

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 8/30

2:30 pm-3:25 pm

Nonstop1h 55m

Phoenix Sky Harbor Intl

Mon 9/1

5:05 am-7:50 am

Nonstop1h 45m

$157

Colorado SpringsPhoenix

COS - PHX

COSPHX

Colorado Springs

Thu 10/16

6:30 pm-7:20 pm

Nonstop1h 50m

Phoenix Sky Harbor Intl

Thu 10/23

3:00 pm-5:40 pm

Nonstop1h 40m

$198

CortezPhoenix

CEZ - PHX

CEZPHX

Cortez Montezuma County

Wed 8/20

9:45 am-10:35 am

Nonstop1h 50m

Phoenix Sky Harbor Intl

Fri 8/22

6:20 pm-8:50 pm

Nonstop1h 30m

$203

MontrosePhoenix

MTJ - PHX

MTJPHX

Montrose County

Wed 8/27

2:37 pm-9:49 pm

1 stop8h 12m

Phoenix Sky Harbor Intl

Tue 9/2

6:00 am-1:47 pm

1 stop6h 47m

$211

Colorado SpringsPhoenix

COS - PHX

COSPHX

Colorado Springs

Fri 8/29

8:00 am-12:13 pm

1 stop5h 13m

Phoenix Sky Harbor Intl

Mon 9/1

5:20 pm-10:18 pm

1 stop3h 58m

$219

Grand JunctionPhoenix

GJT - PHX

GJTPHX

Grand Junction Regnl

Tue 10/14

5:55 am-8:55 am

1 stop4h 00m

Phoenix Sky Harbor Intl

Tue 10/21

5:15 pm-10:29 pm

1 stop4h 14m

$236

Colorado SpringsPhoenix

COS - PHX

COSPHX

Colorado Springs

Sun 9/21

6:00 am-9:12 am

1 stop4h 12m

Phoenix Sky Harbor Intl

Wed 9/24

9:30 am-2:45 pm

1 stop4h 15m

$237

MontrosePhoenix

MTJ - PHX

MTJPHX

Montrose County

Wed 8/20

3:24 pm-8:17 pm

1 stop5h 53m

Phoenix Sky Harbor Intl

Tue 8/26

9:30 am-2:28 pm

1 stop3h 58m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 53 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, January is the cheapest month in which you can book a flight from Colorado to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Colorado 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 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 July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Phoenix Sky Harbor Intl Airport as you normally would.

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 July 30, 2025.

The most flights from USCO to PHX are scheduled on a Monday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

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 July 30, 2025.
Read through reviews of airlines operating flights from Colorado to Phoenix Sky Harbor Intl Airport, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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 $70. Users have also found prices from $78 and $79 on Alaska 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 Air Canada (70%), Frontier (69%) or United Airlines (61%) 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 $188, our data shows the cheapest flight currently is $67. When looking at the most popular route, (Denver Intl - Phoenix Sky Harbor Intl), you can expect to pay $69 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, January is the cheapest month in which you can book a flight from Colorado to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Colorado 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 Phoenix Sky Harbor Intl Airport?

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

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Alternative routes for Colorado to Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Colorado to Sky Harbor Intl

Discover the top 5 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$57Average$151FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$134Average$292FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$136Average$471FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$139Average$468FlexibilityNo cancel feeOn-time69%
DeltaCheapest$196Average$273FlexibilityNo cancel feeOn-timeN/A

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