$60+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
May 14 — May 211
Round-trip
1 adult, Economy
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Find cheap flights from Sky Harbor Intl to Fort Collins 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.Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Fort Collins are usually found in February or October, booked 69 days in advance, depart on a Thursday or Friday and return on a Saturday
Cheap flight deals from Sky Harbor Intl to Fort Collins
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Best
Last-minute
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Cheapest flights from Sky Harbor Intl to Fort CollinsExplore 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 April 14, 2026.
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 April 14, 2026.
This Frontier deal was found by Cheapflights users on 4/13. 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 5/212:50 pm
PHX
- DEN
Nonstop1h 55m
Frontier
Sat 5/27:05 pm
DEN
- PHX
Nonstop2h 05m
Frontier
Deal found 4/13![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 4/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:29 pm
PHX
- DEN
Nonstop1h 56m
Frontier
Fri 5/156:45 am
DEN
- PHX
Nonstop1h 59m
Frontier
Deal found 4/9![Frontier logo]()
$86
This Cheapflightsfares deal was found by Cheapflights users on 4/10. 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.
Wed 5/66:51 pm
PHX
- DEN
Nonstop1h 58m
Frontier
Wed 5/1310:34 pm
DEN
- PHX
Nonstop1h 55m
Frontier
Deal found 4/10![Frontier logo]()
$87
This Frontier deal was found by Cheapflights users on 4/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/304:53 pm
PHX
- DEN
Nonstop1h 53m
Frontier
Tue 6/3010:36 pm
DEN
- PHX
Nonstop1h 53m
Frontier
Deal found 4/11![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 4/13. 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 5/285:15 am
PHX
- DEN
Nonstop1h 53m
Frontier
Sat 5/306:45 am
DEN
- PHX
Nonstop1h 59m
Frontier
Deal found 4/13![Frontier logo]()
$91
This Booking.com deal was found by Cheapflights users on 4/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:15 am
PHX
- DEN
Nonstop1h 53m
Frontier
Mon 6/19:03 am
DEN
- PHX
Nonstop2h 02m
Frontier
Deal found 4/13![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 4/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:51 pm
PHX
- DEN
Nonstop1h 58m
Frontier
Thu 5/288:08 pm
DEN
- PHX
Nonstop2h 02m
Frontier
Deal found 4/11![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/124:29 pm
PHX
- DEN
Nonstop1h 56m
Frontier
Sun 5/176:45 am
DEN
- PHX
Nonstop1h 59m
Frontier
Deal found 4/13![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 am
PHX
- DEN
Nonstop1h 53m
Frontier
Wed 4/2910:35 pm
DEN
- PHX
Nonstop2h 07m
Frontier
Deal found 4/10![Frontier logo]()
$97
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 5/19:24 pm
PHX
- DEN
Nonstop1h 56m
Frontier
Mon 5/46:30 am
DEN
- PHX
Nonstop2h 06m
Frontier
Deal found 4/14![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:27 pm
PHX
- DEN
1 stop10h 11m
Frontier
Sat 5/162:55 pm
DEN
- PHX
Nonstop2h 00m
Frontier
Deal found 4/10![Frontier logo]()
$99
Best flights from Sky Harbor Intl to Fort CollinsDiscover carefully curated flight deals from Sky Harbor Intl to Fort Collins that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 14, 2026.
Discover carefully curated flight deals from Sky Harbor Intl to Fort Collins that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 14, 2026.
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Fri 7/106:00 am
PHX
- DEN
Nonstop1h 52m
United Airlines
Sun 7/128:00 am
DEN
- PHX
Nonstop2h 00m
United Airlines
Deal found 4/13![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 4/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/27:45 am
PHX
- DEN
1 stop3h 20m
Southwest
Thu 7/97:50 am
DEN
- PHX
1 stop3h 45m
Southwest
Deal found 4/9![Southwest logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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.
Thu 5/77:15 pm
PHX
- DEN
1 stop15h 51m
Alaska Airlines
Sat 5/96:00 am
DEN
- PHX
2 stops10h 01m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 4/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:55 pm
PHX
- DEN
2 stops6h 05m
Southwest
Fri 6/126:00 am
DEN
- PHX
1 stop4h 20m
Southwest
Deal found 4/9![Southwest logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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 5/164:23 pm
PHX
- DEN
1 stop6h 14m
Alaska Airlines
Tue 5/196:00 am
DEN
- PHX
2 stops10h 41m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 4/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/251:55 pm
PHX
- DEN
2 stops6h 05m
Southwest
Mon 6/297:50 am
DEN
- PHX
1 stop3h 45m
Southwest
Deal found 4/9![Southwest logo]()
$315
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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.
Wed 6/312:04 pm
PHX
- DEN
2 stops10h 55m
Alaska Airlines
Mon 6/87:51 pm
DEN
- PHX
1 stop5h 05m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 4/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/27:45 am
PHX
- DEN
1 stop3h 20m
Southwest
Wed 7/89:35 am
DEN
- PHX
2 stops6h 15m
Southwest
Deal found 4/9![Southwest logo]()
$320
This Alaska Airlines deal was found by Cheapflights users on 4/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:53 pm
PHX
- DEN
1 stop16h 46m
Alaska Airlines
Sat 5/308:00 am
DEN
- PHX
2 stops8h 41m
Alaska Airlines
Deal found 4/9![Alaska Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 4/13. 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.
Fri 7/101:55 pm
PHX
- DEN
2 stops6h 05m
Southwest
Mon 7/137:50 am
DEN
- PHX
1 stop3h 45m
Southwest
Deal found 4/13![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 4/12. 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.
Mon 7/131:55 pm
PHX
- DEN
2 stops6h 05m
Southwest
Mon 7/274:35 pm
DEN
- PHX
1 stop4h 10m
Southwest
Deal found 4/12![Southwest logo]()
$349
Last-minute flights from Sky Harbor Intl to Fort CollinsDiscover last-minute flight deals from Sky Harbor Intl to Fort Collins. Data last updated April 14, 2026 and is based on user searches.
Discover last-minute flight deals from Sky Harbor Intl to Fort Collins. Data last updated April 14, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/14. 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 5/19:24 pm
PHX
- DEN
Nonstop1h 56m
Frontier
Mon 5/46:30 am
DEN
- PHX
Nonstop2h 06m
Frontier
Deal found 4/14![Frontier logo]()
$98
This Frontier deal was found by Cheapflights users on 4/13. 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 5/212:50 pm
PHX
- DEN
Nonstop1h 55m
Frontier
Sat 5/27:05 pm
DEN
- PHX
Nonstop2h 05m
Frontier
Deal found 4/13![Frontier logo]()
$83
This Cheapflightsfares deal was found by Cheapflights users on 4/10. 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.
Wed 5/66:51 pm
PHX
- DEN
Nonstop1h 58m
Frontier
Wed 5/1310:34 pm
DEN
- PHX
Nonstop1h 55m
Frontier
Deal found 4/10![Frontier logo]()
$87
This Super.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/86:51 pm
PHX
- DEN
Nonstop1h 58m
Frontier
Sun 5/109:03 am
DEN
- PHX
Nonstop2h 02m
Frontier
Deal found 4/14![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:27 pm
PHX
- DEN
1 stop10h 11m
Frontier
Sat 5/162:55 pm
DEN
- PHX
Nonstop2h 00m
Frontier
Deal found 4/10![Frontier logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 4/13. 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 5/114:17 pm
PHX
- DEN
Nonstop1h 56m
Frontier
Wed 5/132:23 pm
DEN
- PHX
Nonstop2h 00m
Frontier
Deal found 4/13![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 4/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:29 pm
PHX
- DEN
Nonstop1h 56m
Frontier
Fri 5/156:45 am
DEN
- PHX
Nonstop1h 59m
Frontier
Deal found 4/9![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/1210:27 pm
PHX
- DEN
1 stop10h 11m
Frontier
Tue 5/1910:34 pm
DEN
- PHX
Nonstop1h 55m
Frontier
Deal found 4/14![Frontier logo]()
$95
This Frontier deal was found by Cheapflights users on 4/14. 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 5/204:29 pm
PHX
- DEN
Nonstop1h 56m
Frontier
Wed 5/2710:34 pm
DEN
- PHX
Nonstop1h 55m
Frontier
Deal found 4/14![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 4/14. 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 5/266:51 pm
PHX
- DEN
Nonstop1h 58m
Frontier
Thu 5/286:45 am
DEN
- PHX
Nonstop1h 59m
Frontier
Deal found 4/14![Frontier logo]()
$94
This Super.com deal was found by Cheapflights users on 4/13. 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 5/285:15 am
PHX
- DEN
Nonstop1h 53m
Frontier
Sat 5/306:45 am
DEN
- PHX
Nonstop1h 59m
Frontier
Deal found 4/13![Frontier logo]()
$91
One-way flights from Sky Harbor Intl to Fort CollinsSearch for one-way flight options from Sky Harbor Intl to Fort Collins. Find affordable one-way fares based on user searches. Data last updated April 14, 2026.
Search for one-way flight options from Sky Harbor Intl to Fort Collins. Find affordable one-way fares based on user searches. Data last updated April 14, 2026.
This Trip.com deal was found by Cheapflights users on 4/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/911:10 am
PHX
- DEN
1 stop5h 57m
Frontier
Deal found 4/10![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/161:10 pm
PHX
- DEN
1 stop7h 59m
Frontier
Deal found 4/13![Frontier logo]()
$62
This Super.com deal was found by Cheapflights users on 4/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:50 pm
PHX
- DEN
Nonstop1h 55m
Frontier
Deal found 4/10![Frontier logo]()
$63
This Frontier deal was found by Cheapflights users on 4/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:51 pm
PHX
- DEN
Nonstop1h 53m
Frontier
Deal found 4/10![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:40 pm
PHX
- DEN
1 stop13h 24m
Frontier
Deal found 4/10![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 6/810:27 pm
PHX
- DEN
1 stop22h 15m
Frontier
Deal found 4/13![Frontier logo]()
$66
This Super.com deal was found by Cheapflights users on 4/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/216:51 pm
PHX
- DEN
Nonstop1h 58m
Frontier
Deal found 4/10![Frontier logo]()
$67
This Frontier deal was found by Cheapflights users on 4/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:40 am
PHX
- DEN
Nonstop1h 57m
Frontier
Deal found 4/10![Frontier logo]()
$68
This Super.com deal was found by Cheapflights users on 4/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:05 am
PHX
- DEN
1 stop6h 36m
Frontier
Deal found 4/10![Frontier logo]()
$69
This Frontier deal was found by Cheapflights users on 4/14. 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.
Sun 5/1010:27 pm
PHX
- DEN
1 stop3h 58m
Frontier
Deal found 4/14![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/24:22 pm
PHX
- DEN
1 stop16h 06m
Frontier
Deal found 4/13![Frontier logo]()
$71
This Super.com deal was found by Cheapflights users on 4/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:24 pm
PHX
- DEN
Nonstop1h 56m
Frontier
Deal found 4/10![Frontier logo]()
$73
Find 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 April 14, 2026.
Round-trip from | $83 (Frontier) |
|---|---|
One-way from | $60 (Trip.com) |
Popular in | June |
Cheapest in | February |
Average price | $174 |
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 April 14, 2026.
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
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Fri 7/10
6:00 am-8:52 am
Nonstop1h 52m
Denver Intl
Sun 7/12
8:00 am-9:00 am
Nonstop2h 00m
$299
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Thu 7/2
7:45 am-12:05 pm
1 stop3h 20m
Denver Intl
Thu 7/9
7:50 am-10:35 am
1 stop3h 45m
$306
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Thu 5/7
7:15 pm-12:06 pm
1 stop15h 51m
Denver Intl
Sat 5/9
6:00 am-3:01 pm
2 stops10h 01m
$309
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Thu 6/11
1:55 pm-9:00 pm
2 stops6h 05m
Denver Intl
Fri 6/12
6:00 am-9:20 am
1 stop4h 20m
$312
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Sat 5/16
4:23 pm-11:37 pm
1 stop6h 14m
Denver Intl
Tue 5/19
6:00 am-3:41 pm
2 stops10h 41m
$314
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Thu 6/25
1:55 pm-9:00 pm
2 stops6h 05m
Denver Intl
Mon 6/29
7:50 am-10:35 am
1 stop3h 45m
$315
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Wed 6/3
12:04 pm-11:59 pm
2 stops10h 55m
Denver Intl
Mon 6/8
7:51 pm-11:56 pm
1 stop5h 05m
$319
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Thu 7/2
7:45 am-12:05 pm
1 stop3h 20m
Denver Intl
Wed 7/8
9:35 am-2:50 pm
2 stops6h 15m
$320
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Fri 7/10
1:55 pm-9:00 pm
2 stops6h 05m
Denver Intl
Mon 7/13
7:50 am-10:35 am
1 stop3h 45m
$335
PhoenixDenver
PHX - DEN
PHXDEN
Phoenix Sky Harbor Intl
Mon 7/13
1:55 pm-9:00 pm
2 stops6h 05m
Denver Intl
Mon 7/27
4:35 pm-7:45 pm
1 stop4h 10m
$349
Showing 1-10 of 23 resultsSorted by cheapest first
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.
PHX-DEN
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
PHX-FC9
PHX-DEN
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 April 10, 2026.
Booking 69 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, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Fort Collins (average of $58). Flying from Phoenix Sky Harbor Intl Airport to Fort Collins in June is currently the most expensive (average of $106). 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 April 14, 2026.
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 evening could potentially save you up to 50% 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 April 11, 2026.
Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Fort Collins flight should consider departing on Friday evenings 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.
Weekly flight availability from Phoenix Sky Harbor Intl Airport to Fort Collins
Explore weekly flight availability from Sky Harbor Intl to Fort Collins. 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 April 14, 2026.
The most flights from PHX to FC9 are scheduled on a Monday (45 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).
How much does it cost to fly round-trip from Phoenix Sky Harbor Intl Airport to Fort Collins?
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 April 14, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican 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.
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
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Alternative routes for Sky Harbor Intl to Fort Collins
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Complete your trip
Complete your trip to Fort Collins by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Sky Harbor Intl to Fort Collins by cabin class
Find flights from Sky Harbor Intl to Fort Collins, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Sky Harbor Intl and Fort Collins flights
Browse other Sky Harbor Intl and Fort Collins flight options. Last updated on April 14, 2026.
Other flights from Sky Harbor Intl
Browse through other flights departing from Sky Harbor Intl. Flights are based on user searches made on Cheapflights and were last updated on April 14, 2026.
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Sky Harbor Intl to Fort Collins flights
Consider these flights traveling from Sky Harbor Intl to Fort Collins.
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 April 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$64 | Average$152 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$137 | Average$231 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$138 | Average$331 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$149 | Average$262 | FlexibilityNo cancel fee | On-time63% |