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$85+ Cheap flights from Philadelphia (PHL) 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
abr. 1 — abr. 81
mar. 4/1
mar. 4/8
1 adult, Economy
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Cheap flight deals from Philadelphia to Colorado

Keep the following information in mind while searching for Philadelphia to Colorado flight deals. Data was last updated marzo 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$170
(Frontier)

One-way from

$85
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$336

Good round-trip deal

$243 or less

Good one-way deal

$134 or less
Provider with most accurate pricing for Philadelphia-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Denver Intl flights.
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From Philadelphia to Colorado
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One-way flight from Philadelphia to Colorado
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Highest demand for flights based on searches. 8% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Philadelphia to Colorado.
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Price to beat on a one-way flight from Philadelphia to Colorado.
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Find flight deals from Philadelphia to Colorado

Cheapest flights from Philadelphia to Colorado
Explore the most affordable flight options available from Philadelphia to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 27, 2025.

This United Airlines deal was found by Cheapflights users on 3/26. 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.
jue. 5/19:45 amPHL - DEN
Nonstop4h 17mUnited Airlines
jue. 5/111:59 pmDEN - PHL
Nonstop3h 36mUnited Airlines
Deal found 3/26$171
This Frontier deal was found by Cheapflights users on 3/26. 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.
jue. 4/106:00 amPHL - DEN
Nonstop4h 21mFrontier
mar. 4/1511:50 pmDEN - PHL
Nonstop3h 30mFrontier
Deal found 3/26$172
This American Airlines deal was found by Cheapflights users on 3/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/57:40 pmPHL - DEN
Nonstop4h 13mAmerican Airlines
mié. 5/147:00 amDEN - PHL
Nonstop3h 36mAmerican Airlines
Deal found 3/26$176
This Southwest deal was found by Cheapflights users on 3/26. 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.
jue. 5/15:45 pmPHL - DEN
Nonstop4h 10mSouthwest
mar. 5/61:15 pmDEN - PHL
1 stop6h 55mSouthwest
Deal found 3/26$196
This JetBlue deal was found by Cheapflights users on 3/26. 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.
mié. 4/306:00 amPHL - DEN
1 stop8h 40mJetBlue
sáb. 5/310:39 pmDEN - PHL
1 stop9h 02mJetBlue
Deal found 3/26$209
This Delta deal was found by Cheapflights users on 3/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/25:20 amPHL - DEN
1 stop9h 02mDelta
mar. 5/612:55 amDEN - PHL
1 stop6h 36mDelta
Deal found 3/26$257
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/236:15 amPHL - HDN
2 stops8h 16mUnited Airlines
mié. 4/301:40 pmHDN - PHL
1 stop7h 55mUnited Airlines
Deal found 3/24$302
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/35:30 pmPHL - GJT
1 stop8h 46mAmerican Airlines
mié. 9/106:05 amGJT - PHL
1 stop8h 35mAmerican Airlines
Deal found 3/25$304
This Booking.com deal was found by Cheapflights users on 3/26. 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.
lun. 7/2112:05 pmPHL - DEN
1 stop8h 10mMultiple Airlines
lun. 8/1811:30 pmDEN - PHL
Nonstop3h 39mMultiple Airlines
Deal found 3/26$314
This Southwest deal was found by Cheapflights users on 3/25. 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.
lun. 6/25:00 amPHL - HDN
1 stop8h 45mSouthwest
jue. 6/512:55 pmHDN - PHL
2 stops8h 35mSouthwest
Deal found 3/25$333
This United Airlines deal was found by Cheapflights users on 3/26. 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.
sáb. 4/268:00 amPHL - DRO
1 stop6h 27mUnited Airlines
sáb. 5/31:40 pmDRO - PHL
1 stop7h 55mUnited Airlines
Deal found 3/26$338
This Mytrip deal was found by Cheapflights users on 3/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/266:21 amPHL - COS
3 stops35h 29mMultiple Airlines
dom. 5/44:35 pmCOS - PHL
2 stops35h 17mMultiple Airlines
Deal found 3/26$357

Cheapflights Fare Finder

Customize your flight search to find flights from Philadelphia 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 marzo 27, 2025.
Use the filters below to find and compare flights from Philadelphia to Colorado that are best for you.

Fly from

Philadelphia

Fly to

Colorado

Route

Depart

Return

Price

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

vie. 4/25

7:55 pm-10:06 pm

Nonstop4h 11m

Denver Intl

mar. 4/29

7:00 am-12:35 pm

Nonstop3h 35m

$171

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

jue. 4/10

6:00 am-8:21 am

Nonstop4h 21m

Denver Intl

jue. 4/10

11:59 pm-5:31 am

Nonstop3h 32m

$172

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

mar. 5/27

8:00 am-10:03 am

Nonstop4h 03m

Denver Intl

mar. 5/27

11:45 pm-5:22 am

Nonstop3h 37m

$180

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

jue. 5/1

5:45 pm-7:55 pm

Nonstop4h 10m

Denver Intl

mar. 5/6

1:15 pm-10:10 pm

1 stop6h 55m

$196

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

mié. 4/30

6:00 am-12:40 pm

1 stop8h 40m

Denver Intl

mié. 5/7

10:38 pm-9:38 am

1 stop9h 00m

$209

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

vie. 5/2

5:20 am-9:25 am

1 stop6h 05m

Denver Intl

vie. 5/2

12:55 am-8:48 am

1 stop5h 53m

$257

PhiladelphiaHayden

PHL - HDN

PHLHDN

Philadelphia

mié. 4/23

6:15 am-12:31 pm

2 stops8h 16m

Hayden Yampa Valley

mié. 4/30

1:40 pm-11:35 pm

1 stop7h 55m

$302

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

lun. 7/21

12:05 pm-6:15 pm

1 stop8h 10m

Denver Intl

lun. 8/18

11:30 pm-5:09 am

Nonstop3h 39m

$314

PhiladelphiaHayden

PHL - HDN

PHLHDN

Philadelphia

lun. 6/2

5:00 am-11:45 am

1 stop8h 45m

Hayden Yampa Valley

jue. 6/5

12:55 pm-11:30 pm

2 stops8h 35m

$333

PhiladelphiaDurango

PHL - DRO

PHLDRO

Philadelphia

sáb. 4/26

8:00 am-12:27 pm

1 stop6h 27m

Durango La Plata County

sáb. 5/3

1:40 pm-11:35 pm

1 stop7h 55m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 46 results
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Best time to book a flight from Philadelphia to Colorado

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

What is the cheapest month to book a flight from Philadelphia to Colorado?

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Colorado (average of $197). Flying from Philadelphia to Colorado in March is currently the most expensive (average of $278). 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 PHL to CO?

Find hourly flight availability from Philadelphia 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 marzo 27, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Colorado as you normally would.

Weekly flight availability from Philadelphia to Colorado

Explore weekly flight availability from Philadelphia to Colorado. 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 marzo 27, 2025.

The most flights from PHL to USCO are scheduled on a Monday (15 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Colorado by month

Plan your trip to Colorado by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

Plan your trip to Colorado by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 marzo 27, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Philadelphia to Colorado. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,792 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,895 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,923 reviews
Southwest
8.1
Very good
4,273 reviews

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Colorado. 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 Colorado?

    Philadelphia (PHL) is the airport you will fly out of if you book a flight from Philadelphia to Colorado. It is only a 7.0 mi journey to Philadelphia (PHL) from Philadelphia’s city center.

  • How popular is this Philadelphia to Colorado flight route?

    Within the past month, 159 users have taken a look at flights from Philadelphia to Colorado.

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

    One-way options have recently been found by users for as low as $85 on Frontier. Other airlines that offer cheap prices include United Airlines from $99 and American Airlines from $106 one-way.

  • What are the most popular routes from Philadelphia to Colorado?

    When deciding which route to take from Philadelphia to Colorado consider Philadelphia - Denver Intl, Philadelphia - Colorado Springs or Philadelphia - Durango La Plata County as they are the most popular.

  • What are the most reliable airlines from Philadelphia to Colorado?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Philadelphia to Colorado on time: Air Canada (88%), United Airlines (88%), Qatar Airways (85%).

  • What are the cheapest flights from Philadelphia to Colorado?

    The cheapest flight price from Philadelphia to Colorado is $87. On average you can expect to pay $706. The most popular route, (Philadelphia - Denver Intl), can usually be booked for $141.

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

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

  • How can I find direct flights from Philadelphia to Colorado?

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

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

    Yes. Cheapflights offers flight deals from Philadelphia 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 Philadelphia to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Colorado (average of $197). Flying from Philadelphia to Colorado in March is currently the most expensive (average of $278). 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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Alternative routes for Philadelphia to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Philadelphia to Colorado

Discover the top 7 airlines that operate flights from Philadelphia 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 marzo 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$82Average$275FlexibilityNo cancel feeOn-time83%
FrontierCheapest$87Average$204FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$184Average$502FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$185Average$619FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$194Average$480FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$207Average$325FlexibilityNo cancel feeOn-time62%
DeltaCheapest$215Average$378FlexibilityNo cancel feeOn-timeN/A
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