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$48+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
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 October 29, 2025.

Round-trip from

$80
(CheapOair)

One-way from

$48
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$152

Good round-trip deal

$159 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. 13% potential increase in price ($26 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 October 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 October 29, 2025.

This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:43 pmPHX - DEN
1 stop8h 15mFrontier
Fri 12/196:15 amDEN - PHX
Nonstop2h 06mFrontier
Deal found 10/28$80
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:59 amPHX - DEN
Nonstop2h 00mFrontier
Sun 11/1610:29 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 10/27$81
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:45 amPHX - DEN
1 stop6h 28mFrontier
Tue 11/187:58 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 10/27$82
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:11 pmPHX - DEN
Nonstop1h 53mFrontier
Sun 11/1610:29 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 10/27$83
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:31 pmPHX - DEN
Nonstop1h 54mFrontier
Thu 12/255:43 pmDEN - PHX
1 stop5h 57mFrontier
Deal found 10/29$85
This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:00 amPHX - DEN
Nonstop1h 55mFrontier
Mon 12/86:00 amDEN - PHX
1 stop17h 55mFrontier
Deal found 10/27$86
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2212:58 pmPHX - DEN
1 stop7h 22mFrontier
Sat 12/2710:44 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 10/27$87
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2212:58 pmPHX - DEN
1 stop7h 22mFrontier
Wed 12/316:15 amDEN - PHX
Nonstop2h 06mFrontier
Deal found 10/28$89
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:59 amPHX - DEN
Nonstop2h 00mFrontier
Wed 11/122:15 pmDEN - PHX
1 stop4h 35mFrontier
Deal found 10/27$90
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:11 pmPHX - DEN
Nonstop1h 53mFrontier
Sun 11/910:29 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 10/27$91
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/1210:53 amPHX - DRO
1 stop3h 50mUnited Airlines
Sun 11/165:15 amDRO - PHX
1 stop6h 28mUnited Airlines
Deal found 10/28$168
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/117:00 amPHX - MTJ
1 stop5h 29mUnited Airlines
Sat 11/151:30 pmMTJ - PHX
1 stop4h 26mUnited Airlines
Deal found 10/27$179

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 October 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

Thu 1/22

8:24 am-6:41 pm

1 stop10h 17m

Denver Intl

Mon 1/26

7:39 pm-2:00 pm

1 stop18h 21m

$142

PhoenixGrand Junction

PHX - GJT

PHXGJT

Phoenix Sky Harbor Intl

Wed 4/22

6:00 am-12:30 pm

1 stop5h 30m

Grand Junction Regnl

Sat 5/2

5:56 am-8:53 am

1 stop3h 57m

$169

PhoenixGrand Junction

PHX - GJT

PHXGJT

Phoenix Sky Harbor Intl

Wed 4/22

6:00 am-12:30 pm

1 stop5h 30m

Grand Junction Regnl

Mon 4/27

1:05 pm-6:27 pm

1 stop6h 22m

$174

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 12/5

1:23 pm-11:59 pm

1 stop10h 36m

Denver Intl

Sun 12/7

6:00 am-1:42 pm

1 stop7h 42m

$175

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 1/20

8:24 am-11:58 pm

1 stop15h 34m

Denver Intl

Fri 1/30

8:04 am-3:03 pm

1 stop6h 59m

$175

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 12/12

8:00 am-11:59 pm

1 stop15h 59m

Denver Intl

Sun 12/14

6:00 am-1:42 pm

1 stop7h 42m

$175

PhoenixMontrose

PHX - MTJ

PHXMTJ

Phoenix Sky Harbor Intl

Tue 11/11

7:00 am-12:29 pm

1 stop5h 29m

Montrose County

Sat 11/15

1:30 pm-5:56 pm

1 stop4h 26m

$179

PhoenixGrand Junction

PHX - GJT

PHXGJT

Phoenix Sky Harbor Intl

Fri 11/14

4:32 pm-9:58 pm

1 stop5h 26m

Grand Junction Regnl

Sun 11/16

7:00 am-11:43 am

1 stop4h 43m

$179

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 12/3

6:02 am-7:24 pm

1 stop13h 22m

Denver Intl

Sat 12/6

11:41 am-10:51 pm

2 stops11h 10m

$181

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Mon 12/29

8:20 am-11:59 pm

1 stop15h 39m

Denver Intl

Thu 1/8

12:34 pm-7:25 pm

1 stop6h 51m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Colorado (average of $54). Flying from Phoenix Sky Harbor Intl Airport to Colorado in July is currently the most expensive (average of $102). 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 October 29, 2025.

It’s optimal to fly from Phoenix Sky Harbor Intl Airport to Colorado in the evening. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Colorado. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Colorado flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 29, 2025.
Get a feel of what it's like to fly with Denver Air Connection, Southwest, and United 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.
Denver Air Connection
8.7
Very good

Crew

9.4

Overall

8.7

Food

8.4

Comfort

8.9

Boarding

8.7

Entertainment

8.1
Denver Air Connection
8.7
Very good
Denver Air Connection
8.7
Very good

Crew

9.4

Overall

8.7

Food

8.4

Comfort

8.9

Boarding

8.7

Entertainment

8.1
Southwest
8.0
Very good
4,241 reviews
Denver Air Connection
8.7
Very good

Crew

9.4

Overall

8.7

Food

8.4

Comfort

8.9

Boarding

8.7

Entertainment

8.1
United Airlines
7.4
Good
8,999 reviews
Denver Air Connection
8.7
Very good

Crew

9.4

Overall

8.7

Food

8.4

Comfort

8.9

Boarding

8.7

Entertainment

8.1
American Airlines
7.2
Good
11,032 reviews
Denver Air Connection
8.7
Very good

Crew

9.4

Overall

8.7

Food

8.4

Comfort

8.9

Boarding

8.7

Entertainment

8.1
Frontier
5.8
Fair
3,124 reviews
Denver Air Connection
8.7
Very good

Crew

9.4

Overall

8.7

Food

8.4

Comfort

8.9

Boarding

8.7

Entertainment

8.1

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 $179, Alaska Airlines can have you in Colorado from Phoenix Sky Harbor Intl Airport in 5h 29m. There are 419 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 Frontier ($55), United Airlines ($62), and Alaska Airlines ($71).

  • 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 - Grand Junction Regnl.

  • 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 Envoy Air (100%), Frontier (81%) and American Airlines (80%).

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

    On average you can expect to pay $756 for a flight from Phoenix Sky Harbor Intl Airport to Colorado. The cheapest flight overall is $60 while the most popular route, (Phoenix Sky Harbor Intl - Denver Intl) is currently priced at $54.

  • 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, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Colorado (average of $54). Flying from Phoenix Sky Harbor Intl Airport to Colorado in July is currently the most expensive (average of $102). 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$115FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$139Average$502FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$148Average$429FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$156Average$365FlexibilityNo cancel feeOn-time63%
DeltaCheapest$206Average$278FlexibilityNo cancel feeOn-timeN/A

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