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Fort Collins

$44+ Cheap flights from Sky Harbor Intl (PHX) to Fort Collins, CO

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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Fort Collins are usually found in February or January, booked 62 days in advance, depart on a Thursday or Friday and return on a Wednesday

Find flight deals from Sky Harbor Intl to Fort Collins

Cheapest flights from Sky Harbor Intl to Fort Collins
Explore the most affordable flight options available from Sky Harbor Intl to Fort Collins. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 11/2010:43 pmPHX - DEN
1 stop5h 15mFrontier
Mon 11/2410:29 pmDEN - PHX
Nonstop2h 03mFrontier
Deal found 10/31$82
This Frontier deal was found by Cheapflights users on 11/2. 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 12/46:03 pmPHX - DEN
1 stop5h 56mFrontier
Mon 12/87:18 pmDEN - PHX
Nonstop2h 03mFrontier
Deal found 11/2$84
This Frontier deal was found by Cheapflights users on 11/2. 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 11/2710:05 amPHX - DEN
Nonstop1h 56mFrontier
Thu 12/47:15 amDEN - PHX
1 stop9h 33mFrontier
Deal found 11/2$85
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 12/49:41 amPHX - DEN
1 stop14h 06mFrontier
Sun 12/710:44 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 10/31$86
This Priceline deal was found by Cheapflights users on 11/2. 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.
Fri 12/127:00 amPHX - DEN
Nonstop1h 55mFrontier
Tue 12/169:33 amDEN - PHX
1 stop8h 58mFrontier
Deal found 11/2$88
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/2210:11 pmPHX - DEN
Nonstop1h 53mFrontier
Sat 12/610:44 pmDEN - PHX
Nonstop2h 00mFrontier
Deal found 11/2$89
This Priceline deal was found by Cheapflights users on 11/2. 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.
Sat 11/2210:11 pmPHX - DEN
Nonstop1h 53mFrontier
Mon 11/247:03 pmDEN - PHX
Nonstop2h 01mFrontier
Deal found 11/2$90
This CheapOair deal was found by Cheapflights users on 11/2. 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.
Fri 12/127:00 amPHX - DEN
Nonstop1h 55mFrontier
Mon 12/157:18 pmDEN - PHX
Nonstop2h 03mFrontier
Deal found 11/2$91
This Priceline deal was found by Cheapflights users on 11/2. 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.
Mon 12/89:16 amPHX - DEN
Nonstop1h 55mFrontier
Sat 1/312:26 pmDEN - PHX
Nonstop2h 07mFrontier
Deal found 11/2$92
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/2410:11 pmPHX - DEN
Nonstop1h 53mFrontier
Fri 11/287:03 pmDEN - PHX
Nonstop2h 01mFrontier
Deal found 11/2$93
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 11/157:32 amPHX - DEN
Nonstop1h 57mFrontier
Mon 11/1710:29 pmDEN - PHX
1 stop23h 55mFrontier
Deal found 11/2$95

Cheap flight deals from Sky Harbor Intl to Fort Collins

Keep the following information in mind while searching for Sky Harbor Intl to Fort Collins flight deals. Data was last updated November 3, 2025.

Round-trip from

$82
(Cheapflightsfares)

One-way from

$44
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$178
From Phoenix Sky Harbor Intl to Fort Collins
Search Deals
One-way flight from Phoenix Sky Harbor Intl to Fort Collins
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($25 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 November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl to Fort Collins 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 November 3, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Fort Collins that are best for you.

Fly from

Sky Harbor Intl

Fly to

Fort Collins

Route

Depart

Return

Price

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 12/12

6:00 am-6:32 pm

1 stop12h 32m

Denver Intl

Mon 12/15

10:37 pm-6:31 pm

1 stop19h 54m

$124

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 11/14

10:53 pm-12:47 am

Nonstop1h 54m

Denver Intl

Sun 11/16

10:29 pm-12:29 am

Nonstop2h 00m

$133

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 12/2

3:55 pm-11:59 pm

1 stop8h 04m

Denver Intl

Tue 12/9

6:59 pm-11:59 pm

1 stop5h 00m

$137

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 11/14

10:53 pm-12:47 am

Nonstop1h 54m

Denver Intl

Mon 11/17

10:29 pm-10:28 am

1 stop11h 59m

$154

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 12/24

8:20 am-7:18 pm

1 stop10h 58m

Denver Intl

Thu 1/1

6:48 pm-11:50 am

1 stop17h 02m

$177

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 12/17

3:55 pm-11:59 pm

1 stop8h 04m

Denver Intl

Fri 12/19

6:48 pm-11:53 pm

1 stop5h 05m

$179

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Mon 11/24

3:48 pm-11:59 pm

1 stop8h 11m

Denver Intl

Wed 11/26

6:00 am-11:40 pm

1 stop17h 40m

$182

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 12/18

4:41 pm-11:59 pm

1 stop7h 18m

Denver Intl

Tue 12/23

6:48 pm-11:53 pm

1 stop5h 05m

$187

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Mon 11/24

3:05 pm-7:25 pm

1 stop4h 20m

Denver Intl

Fri 11/28

3:15 pm-7:10 pm

1 stop3h 55m

$201

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 12/24

12:42 pm-7:18 pm

1 stop6h 36m

Denver Intl

Sat 1/3

6:48 pm-7:54 pm

1 stop25h 06m

$212

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 21 results
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Best time to book a flight from Sky Harbor Intl to Fort Collins

Have a flexible travel schedule? Discover the best time to fly to Fort Collins 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 Fort Collins

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Fort Collins. Price data was last updated on October 31, 2025.

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix Sky Harbor Intl Airport to Fort Collins. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Fort Collins (average of $54). Flying from Phoenix Sky Harbor Intl Airport to Fort Collins 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 FC9?

Find hourly flight availability from Sky Harbor Intl to Fort Collins. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

One of the essential ways to save on airfare from Phoenix Sky Harbor Intl Airport to Fort Collins is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 42% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Fort Collins. Price data was last updated on December 16, 2024.

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

Reviews of airlines servicing Fort Collins

Get insights into the airlines that provide service to Fort Collins. 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 Fort Collins. Reviews last updated November 3, 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 Fort Collins by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
8,997 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
11,036 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
3,117 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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 Fort Collins. 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 Fort Collins?

    For as low as $137, Frontier can have you in Fort Collins from Phoenix Sky Harbor Intl Airport in 8h 04m. There are 601 mi between Phoenix Sky Harbor Intl Airport and Fort Collins. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The top 3 most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Fort Collins are Envoy Air (100%), Air Canada (87%) and Frontier (86%).

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

    On average you can expect to pay $756 for a flight from Phoenix Sky Harbor Intl Airport to Fort Collins. The cheapest flight overall is $60 while the most popular route, (Phoenix Sky Harbor Intl - Denver Intl) is currently priced at $40.

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

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

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

    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 Fort Collins.

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

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Fort Collins 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 Fort Collins?

    Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Fort Collins (average of $54). Flying from Phoenix Sky Harbor Intl Airport to Fort Collins 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.

See more FAQs

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Top 4 airlines flying from Sky Harbor Intl to Fort Collins

Discover the top 4 airlines that operate flights from Sky Harbor Intl to Fort Collins. 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$143FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$139Average$225FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$148Average$340FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$156Average$243FlexibilityNo cancel feeOn-time63%

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