Fort Collins

$118+ Cheap flights from Philadelphia (PHL) 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 7/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Jul 12 — Jul 191
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Cheapflights Tip: The best prices from Philadelphia to Fort Collins are usually found in August or October, booked 28 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Philadelphia to Fort Collins

Cheapest flights from Philadelphia to Fort Collins
Explore the most affordable flight options available from Philadelphia to Fort Collins. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.

This Frontier deal was found by Cheapflights users on 6/9. 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.
Wed 9/212:42 pm
PHL
-
DEN
Nonstop4h 14m
Frontier
Mon 9/76:05 am
DEN
-
PHL
Nonstop3h 42m
Frontier
Deal found 6/9$199
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:44 pm
PHL
-
DEN
Nonstop4h 14m
Frontier
Wed 8/56:05 am
DEN
-
PHL
Nonstop3h 44m
Frontier
Deal found 6/11$200
This Super.com deal was found by Cheapflights users on 6/10. 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.
Wed 7/2212:44 pm
PHL
-
DEN
Nonstop4h 14m
Frontier
Sun 7/266:05 am
DEN
-
PHL
Nonstop3h 44m
Frontier
Deal found 6/10$202
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:42 pm
PHL
-
DEN
Nonstop4h 14m
Frontier
Tue 9/19:06 pm
DEN
-
PHL
2 stops32h 13m
Frontier
Deal found 6/11$203
This JetBlue deal was found by Cheapflights users on 6/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:28 am
PHL
-
DEN
1 stop6h 47m
JetBlue
Thu 8/2711:37 pm
DEN
-
PHL
1 stop6h 45m
JetBlue
Deal found 6/9$204
This Expedia deal was found by Cheapflights users on 6/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:44 pm
PHL
-
DEN
Nonstop4h 14m
Multiple Airlines
Mon 8/311:37 pm
DEN
-
PHL
1 stop6h 53m
Multiple Airlines
Deal found 6/10$205
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:54 pm
PHL
-
DEN
Nonstop4h 14m
Frontier
Tue 8/186:30 am
DEN
-
PHL
1 stop10h 33m
Frontier
Deal found 6/9$206
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/198:30 am
PHL
-
DEN
1 stop7h 29m
Frontier
Sat 8/226:05 am
DEN
-
PHL
Nonstop3h 42m
Frontier
Deal found 6/10$207
This Frontier deal was found by Cheapflights users on 6/9. 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.
Wed 8/512:44 pm
PHL
-
DEN
Nonstop4h 14m
Frontier
Wed 8/196:05 am
DEN
-
PHL
Nonstop3h 42m
Frontier
Deal found 6/9$208
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:44 pm
PHL
-
DEN
Nonstop4h 14m
Multiple Airlines
Mon 8/1711:37 pm
DEN
-
PHL
1 stop6h 58m
Multiple Airlines
Deal found 6/11$209
This CheapOair deal was found by Cheapflights users on 6/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:37 pm
PHL
-
DEN
Nonstop4h 27m
Multiple Airlines
Sat 8/811:37 pm
DEN
-
PHL
1 stop6h 45m
Multiple Airlines
Deal found 6/10$210

Find flight deals from Philadelphia to Fort Collins

Keep the following information in mind while searching for Philadelphia to Fort Collins flight deals. Data was last updated June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$199
(Frontier)

One-way from

$118
(Mytrip)

Popular in

June

Cheapest in

August

Average price

$449
Provider with most accurate pricing for Philadelphia-Denver Intl flight deals.
Provider most trusted by Cheapflights users for Philadelphia-Denver Intl flights.
From Philadelphia to Fort Collins
One-way flight from Philadelphia to Fort Collins
Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 June 12, 2026.
Use the filters below to find and compare flights from Philadelphia to Fort Collins that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 10/15

7:29 pm-12:23 am

1 stop6h 54m

Denver Intl

Wed 10/21

12:59 am-9:27 am

1 stop6h 28m

$269

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 8/27

5:55 am-1:45 pm

2 stops9h 50m

Denver Intl

Mon 8/31

7:00 am-4:00 pm

1 stop7h 00m

$341

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 10/29

4:05 pm-10:17 pm

1 stop8h 12m

Denver Intl

Sun 11/1

10:45 am-6:19 pm

1 stop5h 34m

$350

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 11/19

6:15 am-12:03 pm

1 stop7h 48m

Denver Intl

Mon 11/23

6:25 pm-5:41 am

1 stop9h 16m

$350
Quickest round-trip

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Mon 8/3

8:00 am-10:01 am

Nonstop4h 01m

Denver Intl

Mon 8/10

11:59 pm-5:31 am

Nonstop3h 32m

$352

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 8/13

5:55 am-1:45 pm

2 stops9h 50m

Denver Intl

Tue 8/18

11:15 am-8:55 pm

2 stops7h 40m

$397

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 11/25

8:00 am-10:05 am

Nonstop4h 05m

Denver Intl

Mon 11/30

11:50 pm-9:24 am

1 stop7h 34m

$402

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sat 7/11

8:20 am-1:20 pm

2 stops7h 00m

Denver Intl

Sat 7/18

12:05 pm-9:00 pm

2 stops6h 55m

$423

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Fri 7/17

12:50 pm-8:00 pm

2 stops9h 10m

Denver Intl

Mon 7/20

2:20 pm-12:25 am

2 stops8h 05m

$441

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Mon 6/29

8:00 am-3:10 pm

2 stops9h 10m

Denver Intl

Tue 7/7

12:20 pm-9:25 pm

2 stops7h 05m

$460

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 22 resultsSorted by cheapest first
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2
3

Best time to book a flight from Philadelphia to Fort Collins

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

What is the cheapest time of day to fly from PHL to FC9?

Find hourly flight availability from Philadelphia 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 June 12, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 36% on flights from Philadelphia to Fort Collins by exploring options for tickets in the evening.

Weekly flight availability from Philadelphia to Fort Collins

Explore weekly flight availability from Philadelphia 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 June 12, 2026.

The most flights from PHL to FC9 are scheduled on a Thursday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Philadelphia to Fort Collins?

What is the cheapest day to fly from Philadelphia to Fort Collins?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Fort Collins. Price data was last updated on June 8, 2026.

Travelers seeking maximum savings on their Philadelphia to Fort Collins flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday 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 June 12, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines from Philadelphia 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

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

7.9

Crew

8.6

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Fort Collins. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Philadelphia to Fort Collins?

    If you book a flight to Fort Collins from Philadelphia, you will be flying from Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia. There are 13 flights from Philadelphia to Fort Collins per day from 6 different airlines.

  • How popular is this Philadelphia to Fort Collins flight route?

  • How long is the flight from Philadelphia to Fort Collins?

    Delta, Southwest, and United Airlines can get you from Philadelphia to Fort Collins in just under 4h 01m. Your travel time can differ by up to 5h 49m. There are 1553 mi between Philadelphia and Fort Collins. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Philadelphia to Fort Collins one-way?

    $60 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and American Airlines, with prices starting from $79 and $91, respectively.

  • What are the most reliable airlines from Philadelphia to Fort Collins?

    Before booking your flight to Fort Collins from Philadelphia, check out the most reliable airlines to get you to your destination on time: Aer Lingus (100%), Air Canada (89%), British Airways( 82%).

  • What are the cheapest flights from Philadelphia to Fort Collins?

    Looking for the cheapest flight from Philadelphia to Fort Collins? While on average our users pay $839, our data indicates the cheapest price to be $128. The most popular route (Philadelphia - Denver Intl), is priced around $116.

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

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

  • How can I find direct flights from Philadelphia to Fort Collins?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Fort Collins.

  • Can I find deals for business class flights from Philadelphia to Fort Collins?

    Yes. Cheapflights offers flight deals from Philadelphia 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Philadelphia to Fort Collins

Discover the top 6 airlines that operate flights from Philadelphia 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 June 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$232FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$196Average$415FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$199Average$367FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$212Average$404FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$220Average$308FlexibilityNo cancel feeOn-time62%
DeltaCheapest$237Average$416FlexibilityNo cancel feeOn-timeN/A

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