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

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Sky Harbor Intl to Colorado

Keep the following information in mind while searching for Sky Harbor Intl to Colorado flight deals. Data was last updated July 29, 2025.

Round-trip from

$109
(Frontier)

One-way from

$69
(Frontier)

Popular in

June

Cheapest in

February

Average price

$179

Good round-trip deal

$166 or less

Good one-way deal

$98 or less
From Phoenix Sky Harbor Intl to Colorado
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One-way flight from Phoenix Sky Harbor Intl to Colorado
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Highest demand for flights based on searches. 18% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 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 Phoenix Sky Harbor Intl to Colorado.
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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Colorado.
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Find flight deals from Sky Harbor Intl to Colorado

Cheapest flights from Sky Harbor Intl to Colorado
Explore the most affordable flight options available from Sky Harbor Intl to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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.
Fri 8/299:19 pmPHX - DEN
Nonstop2h 04mFrontier
Thu 9/46:22 pmDEN - PHX
Nonstop2h 03mFrontier
Deal found 7/27$109
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/114:17 pmPHX - DEN
1 stop6h 30mAlaska Airlines
Tue 10/147:01 amDEN - PHX
1 stop9h 16mAlaska Airlines
Deal found 7/29$156
This KAYAK deal was found by Cheapflights users on 7/27. 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.
Thu 9/256:20 pmPHX - CEZ
Nonstop1h 30mDenver Air Connection
Sun 9/289:45 amCEZ - PHX
Nonstop1h 50mDenver Air Connection
Deal found 7/27$203
This American Airlines deal was found by Cheapflights users on 7/27. 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 10/2210:55 amPHX - MTJ
1 stop6h 05mAmerican Airlines
Sat 10/257:30 amMTJ - PHX
1 stop6h 32mAmerican Airlines
Deal found 7/27$211
This Southwest deal was found by Cheapflights users on 7/27. 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.
Tue 8/198:00 pmPHX - COS
Nonstop1h 40mSouthwest
Tue 8/265:50 pmCOS - PHX
Nonstop1h 50mSouthwest
Deal found 7/27$217
This Delta deal was found by Cheapflights users on 7/27. 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.
Thu 9/115:20 pmPHX - COS
1 stop3h 51mDelta
Sun 9/145:55 pmCOS - PHX
1 stop6h 41mDelta
Deal found 7/27$219
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:28 pmPHX - COS
1 stop4h 26mUnited Airlines
Sun 9/75:30 amCOS - PHX
1 stop4h 42mUnited Airlines
Deal found 7/28$237
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.
Mon 9/227:53 pmPHX - DRO
Nonstop1h 22mAmerican Airlines
Tue 9/307:15 amDRO - PHX
Nonstop1h 32mAmerican Airlines
Deal found 7/29$252
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 11/126:25 amPHX - COS
1 stop5h 20mAmerican Airlines
Sun 11/1612:45 pmCOS - PHX
1 stop7h 14mAmerican Airlines
Deal found 7/29$259
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Tue 9/234:21 pmPHX - DRO
1 stop4h 54mUnited Airlines
Tue 9/307:05 amDRO - PHX
1 stop4h 28mUnited Airlines
Deal found 7/26$271
This American Airlines deal was found by Cheapflights users on 7/27. 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 9/238:35 amPHX - GJT
Nonstop1h 41mAmerican Airlines
Tue 9/234:40 pmGJT - PHX
1 stop6h 09mAmerican Airlines
Deal found 7/27$272
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 11/13:32 pmPHX - GUC
1 stop3h 46mUnited Airlines
Wed 11/51:42 pmGUC - PHX
2 stops11h 32mUnited Airlines
Deal found 7/27$274

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl to Colorado 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 29, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Colorado that are best for you.

Fly from

Sky Harbor Intl

Fly to

Colorado

Route

Depart

Return

Price

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 9/10

8:00 am-11:00 am

Nonstop2h 00m

Denver Intl

Fri 9/12

10:29 pm-11:27 pm

Nonstop1h 58m

$109

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 10/11

4:17 pm-11:47 pm

1 stop6h 30m

Denver Intl

Tue 10/14

7:01 am-3:17 pm

1 stop9h 16m

$156

PhoenixCortez

PHX - CEZ

PHXCEZ

Phoenix Sky Harbor Intl

Thu 9/25

6:20 pm-8:50 pm

Nonstop1h 30m

Cortez Montezuma County

Sun 9/28

9:45 am-10:35 am

Nonstop1h 50m

$203

PhoenixMontrose

PHX - MTJ

PHXMTJ

Phoenix Sky Harbor Intl

Wed 10/22

10:55 am-6:00 pm

1 stop6h 05m

Montrose County

Sat 10/25

7:30 am-1:02 pm

1 stop6h 32m

$211

PhoenixColorado Springs

PHX - COS

PHXCOS

Phoenix Sky Harbor Intl

Tue 8/19

8:00 pm-10:40 pm

Nonstop1h 40m

Colorado Springs

Tue 8/26

5:50 pm-6:40 pm

Nonstop1h 50m

$217

PhoenixColorado Springs

PHX - COS

PHXCOS

Phoenix Sky Harbor Intl

Thu 9/11

5:20 pm-10:11 pm

1 stop3h 51m

Colorado Springs

Sun 9/14

5:55 pm-11:36 pm

1 stop6h 41m

$219

PhoenixColorado Springs

PHX - COS

PHXCOS

Phoenix Sky Harbor Intl

Tue 8/19

9:30 am-2:45 pm

1 stop4h 15m

Colorado Springs

Tue 8/26

1:55 pm-5:03 pm

1 stop4h 08m

$228

PhoenixDurango

PHX - DRO

PHXDRO

Phoenix Sky Harbor Intl

Mon 9/22

7:53 pm-10:15 pm

Nonstop1h 22m

Durango La Plata County

Tue 9/30

7:15 am-7:47 am

Nonstop1h 32m

$252

PhoenixDurango

PHX - DRO

PHXDRO

Phoenix Sky Harbor Intl

Tue 9/23

4:21 pm-10:15 pm

1 stop4h 54m

Durango La Plata County

Tue 9/30

7:05 am-10:33 am

1 stop4h 28m

$271

PhoenixColorado Springs

PHX - COS

PHXCOS

Phoenix Sky Harbor Intl

Sat 9/27

5:00 am-12:01 pm

1 stop6h 01m

Colorado Springs

Sat 9/27

5:16 pm-9:49 pm

1 stop5h 33m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 56 results
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Best time to book a flight from Sky Harbor Intl to Colorado

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

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

Currently, October is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Colorado (average of $197). Flying from Phoenix Sky Harbor Intl Airport to Colorado in March is currently the most expensive (average of $278). 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 PHX to CO?

Find hourly flight availability from Sky Harbor Intl to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from Phoenix Sky Harbor Intl Airport to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Phoenix Sky Harbor Intl Airport to Colorado

Explore weekly flight availability from Sky Harbor Intl to Colorado. 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 29, 2025.

The most flights from PHX to USCO are scheduled on a Wednesday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

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

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated July 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Phoenix Sky Harbor Intl Airport to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

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

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

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
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

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
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

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.
Breeze Airways
8.0
Very good
190 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

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.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

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 Sky Harbor Intl to Colorado. 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 Phoenix Sky Harbor Intl Airport to Colorado one-way?

    The cheapest airlines for a one-way flight from Phoenix Sky Harbor Intl Airport to Colorado are Frontier ($69), Southwest ($69), and Hawaiian Airlines ($72).

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

    The most popular route from Phoenix Sky Harbor Intl Airport to Colorado is Phoenix Sky Harbor Intl - Denver Intl. You may also consider Phoenix Sky Harbor Intl - Durango La Plata County or Phoenix Sky Harbor Intl - Colorado Springs.

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

    The top 3 most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Colorado are Air Canada (72%), United Airlines (70%) and Frontier (70%).

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

    On average you can expect to pay $1,135 for a flight from Phoenix Sky Harbor Intl Airport to Colorado. The cheapest flight overall is $69 while the most popular route, (Phoenix Sky Harbor Intl - Denver Intl) is currently priced at $76.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Colorado (average of $197). Flying from Phoenix Sky Harbor Intl Airport to Colorado in March is currently the most expensive (average of $278). 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.

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Alternative routes for Sky Harbor Intl to Colorado

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

Discover the top 5 airlines that operate flights from Sky Harbor Intl to Colorado. 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$110FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$137Average$505FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$146Average$321FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$147Average$448FlexibilityNo cancel feeOn-time69%
DeltaCheapest$218Average$258FlexibilityNo cancel feeOn-timeN/A

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