HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sky Harbor Intl

$55+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHX
Jul 24 — Jul 311
Fri 7/24
Fri 7/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Sky Harbor Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 24, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 6/21. 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 8/138:31 pm
DEN
-
PHX
Nonstop1h 57m
Frontier
Sat 8/156:40 am
PHX
-
DEN
Nonstop1h 59m
Frontier
Deal found 6/21$120
This Cheapflightsfares deal was found by Cheapflights users on 6/21. 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 7/249:15 am
DEN
-
PHX
Nonstop1h 56m
Frontier
Tue 7/286:53 pm
PHX
-
DEN
Nonstop1h 56m
Frontier
Deal found 6/21$121
This Frontier deal was found by Cheapflights users on 6/23. 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.
Mon 8/179:15 am
DEN
-
PHX
Nonstop1h 56m
Frontier
Sat 8/226:35 am
PHX
-
DEN
Nonstop1h 59m
Frontier
Deal found 6/23$122
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 10/310:35 am
DEN
-
PHX
Nonstop2h 07m
Frontier
Mon 10/126:05 am
PHX
-
DEN
Nonstop1h 55m
Frontier
Deal found 6/23$123
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Fri 9/187:00 am
DEN
-
PHX
Nonstop1h 58m
Frontier
Mon 9/216:40 am
PHX
-
DEN
Nonstop1h 55m
Frontier
Deal found 6/20$124
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 9/2310:35 am
DEN
-
PHX
Nonstop2h 07m
Frontier
Wed 9/301:45 pm
PHX
-
DEN
1 stop6h 45m
Frontier
Deal found 6/24$125
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Fri 8/2110:48 pm
DEN
-
PHX
Nonstop1h 51m
Frontier
Mon 8/2410:33 pm
PHX
-
DEN
1 stop10h 30m
Frontier
Deal found 6/19$126
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Fri 7/36:45 am
DEN
-
PHX
Nonstop2h 00m
Frontier
Sat 7/44:53 pm
PHX
-
DEN
Nonstop1h 53m
Frontier
Deal found 6/20$129
This Super.com deal was found by Cheapflights users on 6/21. 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.
Thu 8/278:31 pm
DEN
-
PHX
Nonstop1h 57m
Frontier
Sun 8/308:35 am
PHX
-
DEN
Nonstop1h 58m
Frontier
Deal found 6/21$130
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/226:45 am
DEN
-
PHX
Nonstop1h 55m
Frontier
Mon 8/2410:33 pm
PHX
-
DEN
1 stop10h 30m
Frontier
Deal found 6/22$131
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 8/1910:29 pm
DEN
-
PHX
1 stop10h 29m
Frontier
Wed 8/268:35 am
PHX
-
DEN
Nonstop1h 58m
Frontier
Deal found 6/22$132
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Tue 7/2112:53 pm
GJT
-
PHX
1 stop11h 12m
Multiple Airlines
Wed 7/229:58 pm
PHX
-
GJT
1 stop13h 15m
Multiple Airlines
Deal found 6/22$214

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 June 24, 2026.

Round-trip from

$120
(Cheapflightsfares)

One-way from

$55
(Super.com)

Popular in

June

Cheapest in

September

Average price

$227

Good round-trip deal

$199 or less

Good one-way deal

$116 or less
From Colorado to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Colorado to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Colorado to Phoenix Sky Harbor Intl.
Search Deals
Price to beat on a one-way flight from Colorado to Phoenix Sky Harbor Intl.
Search Deals

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 June 24, 2026.
Use the filters below to find and compare flights from Colorado to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 9/16

2:00 pm-3:05 pm

Nonstop2h 05m

Phoenix Sky Harbor Intl

Mon 9/21

4:35 pm-7:20 pm

Nonstop1h 45m

$211

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 8/1

4:25 pm-7:50 pm

1 stop4h 25m

Phoenix Sky Harbor Intl

Sat 8/8

11:50 am-4:15 pm

1 stop3h 25m

$212

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 7/18

5:40 am-8:44 am

1 stop4h 04m

Phoenix Sky Harbor Intl

Sat 7/25

5:15 pm-10:01 pm

1 stop3h 46m

$217

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Tue 7/14

12:45 pm-4:04 pm

1 stop4h 19m

Phoenix Sky Harbor Intl

Wed 7/15

9:45 am-2:53 pm

1 stop4h 08m

$217

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Thu 8/20

6:17 am-11:31 am

1 stop6h 14m

Phoenix Sky Harbor Intl

Sat 8/22

3:15 pm-9:13 pm

1 stop4h 58m

$221

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 8/8

6:28 pm-10:11 pm

1 stop4h 43m

Phoenix Sky Harbor Intl

Mon 8/10

6:00 am-12:04 pm

1 stop5h 04m

$231

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Wed 8/12

7:59 pm-11:33 pm

1 stop4h 34m

Phoenix Sky Harbor Intl

Sun 8/16

6:53 pm-10:33 am

1 stop14h 40m

$234

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Sat 8/1

6:00 am-12:23 pm

1 stop7h 23m

Phoenix Sky Harbor Intl

Mon 8/3

6:53 pm-10:33 am

1 stop14h 40m

$234
Quickest round-trip

CortezPhoenix

CEZ - PHX

CEZPHX

Cortez Montezuma County

Thu 8/13

11:55 am-12:45 pm

Nonstop1h 50m

Phoenix Sky Harbor Intl

Sun 8/16

1:15 pm-4:05 pm

Nonstop1h 50m

$237

Colorado SpringsPhoenix

COS - PHX

COSPHX

Colorado Springs

Sat 8/1

7:10 pm-8:10 pm

Nonstop2h 00m

Phoenix Sky Harbor Intl

Wed 8/5

5:15 pm-7:55 pm

Nonstop1h 40m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/20

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 $162). Flying from Colorado to Phoenix Sky Harbor Intl Airport in August is currently the most expensive (average of $775). 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 June 24, 2026.

It’s optimal to fly from Colorado to Phoenix Sky Harbor Intl Airport at noon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the morning.

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 June 24, 2026.

The most flights from USCO to PHX are scheduled on a Tuesday (38 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 Colorado to Phoenix Sky Harbor Intl Airport?

How far ahead should I book a flight from Colorado to Phoenix Sky Harbor Intl Airport?

To ensure you get the cheapest price possible for a flight from Colorado to Phoenix Sky Harbor Intl Airport, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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.

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 Southwest, Delta, and Alaska Airlines fly from Colorado to Phoenix Sky Harbor Intl Airport in about 2h 05m. The time it takes to get you to your destination can typically vary by up to 4h 09m. The distance between Colorado and Phoenix Sky Harbor Intl Airport is about 601 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 $34. Users have also found prices from $68 and $69 on American Airlines and United Airlines, 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 Durango La Plata County - 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 (85%), Envoy Air (83%) or Lufthansa (82%) 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 $452, our data shows the cheapest flight currently is $61. When looking at the most popular route, (Denver Intl - Phoenix Sky Harbor Intl), you can expect to pay $108 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 $162). Flying from Colorado to Phoenix Sky Harbor Intl Airport in August is currently the most expensive (average of $775). 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
Glendale
Buckeye
Goodyear
Surprise
Paradise Valley
Peoria
Payson
Casa Grande
Chandler
Camp Verde
Globe
Fountain Hills
Guadalupe

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Sky Harbor Intl flights
O'Hare Intl to Sky Harbor Intl flights
Newark to Sky Harbor Intl flights
John F Kennedy Intl to Sky Harbor Intl flights
Dulles Intl to Sky Harbor Intl flights
Los Angeles to Sky Harbor Intl flights
Dallas/Fort Worth to Sky Harbor Intl flights
Boston to Sky Harbor Intl flights
Hobby to Sky Harbor Intl flights
Denver to Sky Harbor Intl flights
Detroit to Sky Harbor Intl flights
LaGuardia to Sky Harbor Intl flights
Atlanta to Sky Harbor Intl flights
George Bush Intcntl to Sky Harbor Intl flights
Reagan-National to Sky Harbor Intl flights
Baltimore to Sky Harbor Intl flights
Minneapolis to Sky Harbor Intl flights
Midway to Sky Harbor Intl flights
Santa Ana to Sky Harbor Intl flights
San Francisco to Sky Harbor Intl flights
Austin to Sky Harbor Intl flights
Philadelphia to Sky Harbor Intl flights
Portland to Sky Harbor Intl flights
Salt Lake City to Sky Harbor Intl flights
Orlando to Sky Harbor Intl flights
Cleveland to Sky Harbor Intl flights
Tampa to Sky Harbor Intl flights
San Jose to Sky Harbor Intl flights
Nashville to Sky Harbor Intl flights
Charlotte to Sky Harbor Intl flights
Indianapolis to Sky Harbor Intl flights
Raleigh to Sky Harbor Intl flights
Columbus to Sky Harbor Intl flights
Cincinnati to Sky Harbor Intl flights
Las Vegas to Sky Harbor Intl flights
Sacramento to Sky Harbor Intl flights
Everett to Sky Harbor Intl flights
Milwaukee to Sky Harbor Intl flights
St. Louis to Sky Harbor Intl flights
Miami to Sky Harbor Intl flights
Kansas City to Sky Harbor Intl flights
San Diego to Sky Harbor Intl flights
Fort Lauderdale to Sky Harbor Intl flights
Omaha to Sky Harbor Intl flights
Cedar Rapids to Sky Harbor Intl flights
Boise to Sky Harbor Intl flights
New Orleans to Sky Harbor Intl flights
Pittsburgh to Sky Harbor Intl flights
Madison to Sky Harbor Intl flights
Love Field to Sky Harbor Intl flights

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 June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$63Average$173FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$137Average$365FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$139Average$387FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$154Average$312FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$174Average$250FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.