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$57+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$88
(Cheapflightsfares)

One-way from

$57
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$133

Good round-trip deal

$163 or less

Good one-way deal

$112 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. 15% potential increase in price ($30 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 September 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 September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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.
Sat 10/2512:14 pmPHX - DEN
Nonstop2h 01mFrontier
Sun 10/265:18 pmDEN - PHX
Nonstop2h 03mFrontier
Deal found 9/8$88
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 10/139:59 pmPHX - DEN
Nonstop1h 57mFrontier
Wed 10/158:55 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 9/8$90
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:00 amPHX - DEN
Nonstop1h 55mFrontier
Mon 12/1510:30 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 9/10$91
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 10/247:59 pmPHX - DEN
Nonstop1h 56mFrontier
Wed 10/298:58 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 9/8$92
This Frontier deal was found by Cheapflights users on 9/8. 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 10/249:59 pmPHX - DEN
Nonstop1h 57mFrontier
Wed 11/52:58 pmDEN - PHX
Nonstop2h 03mFrontier
Deal found 9/8$93
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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.
Wed 9/248:00 amPHX - DEN
Nonstop2h 00mFrontier
Wed 10/88:55 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 9/11$94
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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.
Wed 10/812:14 pmPHX - DEN
Nonstop2h 01mFrontier
Sun 10/129:58 pmDEN - PHX
Nonstop1h 57mFrontier
Deal found 9/11$95
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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.
Sat 9/275:07 pmPHX - DEN
Nonstop1h 56mFrontier
Sat 10/48:55 pmDEN - PHX
Nonstop1h 58mFrontier
Deal found 9/11$96
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/97:21 amPHX - DEN
Nonstop1h 57mFrontier
Thu 10/166:55 amDEN - PHX
Nonstop2h 04mFrontier
Deal found 9/10$98
This Frontier deal was found by Cheapflights users on 9/9. 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 10/38:20 pmPHX - DEN
Nonstop1h 56mFrontier
Sat 10/43:00 pmDEN - PHX
Nonstop2h 02mFrontier
Deal found 9/9$99
This Trip.com deal was found by Cheapflights users on 9/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:17 pmPHX - DEN
1 stop6h 30mMultiple Airlines
Sat 11/18:58 pmDEN - PHX
Nonstop2h 00mMultiple Airlines
Deal found 9/9$100
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 10/247:59 pmPHX - DEN
Nonstop1h 56mFrontier
Sun 10/266:55 amDEN - PHX
Nonstop2h 04mFrontier
Deal found 9/9$101

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 September 11, 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

Thu 11/6

12:55 pm-2:56 pm

Nonstop2h 01m

Denver Intl

Thu 11/6

10:29 pm-12:29 am

Nonstop2h 00m

$95

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 10/16

8:30 am-7:19 pm

1 stop9h 49m

Denver Intl

Sun 10/19

6:55 am-7:59 am

Nonstop2h 04m

$107

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 10/1

12:39 pm-3:36 pm

Nonstop1h 57m

Denver Intl

Mon 10/6

12:36 am-1:17 pm

1 stop13h 41m

$108

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 10/9

9:59 pm-12:56 am

Nonstop1h 57m

Denver Intl

Mon 10/13

11:03 am-8:48 pm

1 stop10h 45m

$109

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 9/24

8:00 am-11:00 am

Nonstop2h 00m

Denver Intl

Sat 9/27

10:30 am-11:32 am

Nonstop2h 02m

$116

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 10/9

12:02 pm-3:03 pm

Nonstop2h 01m

Denver Intl

Sun 10/12

10:29 pm-8:17 am

1 stop10h 48m

$122

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 12/10

6:45 am-10:25 am

1 stop3h 40m

Denver Intl

Wed 12/17

2:45 pm-6:40 pm

1 stop3h 55m

$132

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 12/23

7:40 pm-9:36 pm

Nonstop1h 56m

Denver Intl

Thu 1/1

8:45 pm-10:49 pm

Nonstop2h 04m

$133

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 10/10

9:59 pm-12:56 am

Nonstop1h 57m

Denver Intl

Thu 10/16

12:59 am-3:05 pm

1 stop15h 06m

$133

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 10/10

9:58 pm-3:59 am

1 stop5h 01m

Denver Intl

Tue 10/14

5:51 pm-10:23 pm

1 stop5h 32m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 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 September 11, 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 September 11, 2025.

The most flights from PHX to USCO are scheduled on a Thursday (40 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 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 September 11, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines 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.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

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

    For as low as $95, Frontier can have you in Colorado from Phoenix Sky Harbor Intl Airport in 2h 01m. There are 601 mi between Phoenix Sky Harbor Intl Airport and Colorado. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Southwest ($64), Frontier ($66), and Alaska Airlines ($68).

  • 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 - Colorado Springs or Phoenix Sky Harbor Intl - Durango La Plata County.

  • 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 (78%), Lufthansa (75%) and Alaska Airlines (68%).

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

    On average you can expect to pay $723 for a flight from Phoenix Sky Harbor Intl Airport to Colorado. The cheapest flight overall is $70 while the most popular route, (Phoenix Sky Harbor Intl - Denver Intl) is currently priced at $73.

  • 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 6 airlines flying from Sky Harbor Intl to Colorado

Discover the top 6 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$113FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$137Average$493FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$146Average$321FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$157Average$465FlexibilityNo cancel feeOn-time69%
DeltaCheapest$206Average$235FlexibilityNo cancel feeOn-timeN/A
Denver Air ConnectionCheapest$298Average$535FlexibilityNo cancel feeOn-timeN/A

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