How popular is this Philadelphia to Colorado flight route?

Within the past month, 126 users have taken a look at flights from Philadelphia to Colorado.

How long is the flight from Philadelphia to Colorado?

A quick flight from Philadelphia to Colorado can take about 4h 20m. JetBlue provides one of the quickest options available for as low as $237. The distance between Philadelphia and Colorado is about 1553 mi. This flight may include one or multiple stops.

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 $65 on Frontier. Other airlines that offer cheap prices include JetBlue from $79 and American Airlines from $86 one-way.

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.

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).

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 - Hayden Yampa Valley or Philadelphia - Aspen Pitkin County as they are the most popular.

What are the cheapest flights from Philadelphia to Colorado?

The cheapest flight price from Philadelphia to Colorado is $109. On average you can expect to pay $820. The most popular route, (Philadelphia - Denver Intl), can usually be booked for $136.

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: United Airlines (91%), Air Canada (89%), Frontier (84%).

What are the most popular airlines that fly from Philadelphia to Colorado?

When booking a flight from Philadelphia to Colorado, you may want to consider flying on Frontier, American Airlines or United Airlines as they are the most popular for this route.

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.

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.

$100+ Flights from Philadelphia to Colorado

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

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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 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 December 28, 2025.

Wed 12/316:00 amPHL - DEN

1 stop15h 15mMultiple Airlines

Wed 1/710:36 amDEN - PHL

1 stop9h 47mMultiple Airlines

Deal found 12/26

$328

Wed 12/316:36 pmPHL - DEN

1 stop16h 20mFrontier

Sat 1/36:25 amDEN - PHL

1 stop9h 57mFrontier

Deal found 12/25

$332

Wed 12/316:00 amPHL - DEN

2 stops28h 55mFrontier

Thu 1/111:59 pmDEN - PHL

Nonstop3h 32mFrontier

Deal found 12/25

$348

Wed 12/317:10 amPHL - DEN

1 stop22h 48mFrontier

Mon 1/57:00 amDEN - PHL

1 stop20h 40mFrontier

Deal found 12/26

$350

Tue 12/306:30 amPHL - DEN

1 stop9h 45mFrontier

Thu 1/89:44 amDEN - PHL

1 stop8h 25mFrontier

Deal found 12/26

$353

Wed 12/316:00 amPHL - DEN

1 stop15h 15mMultiple Airlines

Thu 1/111:59 pmDEN - PHL

Nonstop3h 32mMultiple Airlines

Deal found 12/25

$361

Sun 12/288:05 pmPHL - DEN

1 stop27h 44mFrontier

Wed 1/76:33 pmDEN - PHL

1 stop16h 00mFrontier

Deal found 12/26

$373

Tue 12/3010:00 pmPHL - DEN

2 stops36h 55mFrontier

Mon 1/56:05 amDEN - PHL

1 stop14h 25mFrontier

Deal found 12/25

$380

Tue 12/305:01 pmPHL - DEN

1 stop9h 06mMultiple Airlines

Thu 1/89:02 pmDEN - PHL

2 stops20h 59mMultiple Airlines

Deal found 12/26

$381

Wed 12/316:00 amPHL - DEN

1 stop15h 15mMultiple Airlines

Fri 1/27:00 amDEN - PHL

1 stop6h 48mMultiple Airlines

Deal found 12/25

$386

Mon 12/296:00 amPHL - DEN

1 stop10h 15mFrontier

Fri 1/21:21 pmDEN - PHL

1 stop7h 54mFrontier

Deal found 12/26

$387

Mon 12/291:38 pmPHL - DEN

1 stop10h 30mFrontier

Sun 1/411:59 pmDEN - PHL

Nonstop3h 32mFrontier

Deal found 12/26

$388

Best flights from Philadelphia to Colorado
Discover carefully curated flight deals from Philadelphia to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

Sun 3/296:00 amPHL - DEN

1 stop8h 22mJetBlue

Mon 4/611:15 pmDEN - PHL

1 stop6h 45mJetBlue

Deal found 12/27

$221

Tue 3/176:55 amPHL - EGE

1 stop9h 16mDelta

Tue 3/243:31 pmEGE - PHL

1 stop7h 26mDelta

Deal found 12/26

$237

Thu 2/261:05 pmPHL - DEN

Nonstop4h 20mSouthwest

Tue 3/34:35 pmDEN - PHL

Nonstop3h 25mSouthwest

Deal found 12/25

$237

Mon 2/238:00 amPHL - DEN

Nonstop4h 30mUnited Airlines

Sat 2/285:50 pmDEN - PHL

Nonstop3h 33mUnited Airlines

Deal found 12/26

$237

Thu 3/198:35 amPHL - ASE

1 stop8h 21mAmerican Airlines

Tue 3/246:49 pmASE - PHL

1 stop10h 16mAmerican Airlines

Deal found 12/27

$278

Fri 3/136:00 amPHL - HDN

1 stop7h 23mMultiple Airlines

Sat 3/215:29 pmHDN - PHL

1 stop10h 36mMultiple Airlines

Deal found 12/26

$280

Fri 3/136:22 pmPHL - HDN

1 stop22h 03mAlaska Airlines

Thu 3/191:28 pmHDN - PHL

2 stops14h 37mAlaska Airlines

Deal found 12/27

$294

Thu 4/238:25 amPHL - DEN

1 stop9h 05mJetBlue

Tue 4/2811:08 pmDEN - PHL

1 stop6h 27mJetBlue

Deal found 12/27

$221

Sat 2/214:00 pmPHL - DEN

1 stop6h 35mSouthwest

Mon 2/234:50 pmDEN - PHL

Nonstop3h 25mSouthwest

Deal found 12/27

$247

Wed 2/185:31 amPHL - MTJ

1 stop9h 43mDelta

Mon 2/232:13 pmMTJ - PHL

1 stop8h 11mDelta

Deal found 12/26

$249

Mon 2/236:27 amPHL - HDN

1 stop6h 33mUnited Airlines

Fri 2/273:30 pmHDN - PHL

1 stop6h 00mUnited Airlines

Deal found 12/26

$249

Sun 2/16:55 amPHL - MTJ

1 stop8h 13mDelta

Fri 2/62:05 pmMTJ - PHL

1 stop8h 16mDelta

Deal found 12/27

$249

Wed 1/216:40 amPHL - DEN

Nonstop4h 25mSouthwest

Wed 1/214:35 pmDEN - PHL

Nonstop3h 25mSouthwest

Deal found 12/27

$249

Fri 2/610:30 amPHL - DRO

1 stop9h 49mAmerican Airlines

Sun 2/811:47 amDRO - PHL

1 stop10h 04mAmerican Airlines

Deal found 12/26

$278

Mon 1/2610:10 amPHL - MTJ

2 stops12h 07mUnited Airlines

Mon 2/21:32 pmMTJ - PHL

1 stop7h 58mUnited Airlines

Deal found 12/27

$254

Wed 3/116:00 amPHL - DEN

1 stop9h 51mJetBlue

Mon 3/1611:30 amDEN - PHL

1 stop10h 12mJetBlue

Deal found 12/26

$260

Thu 1/226:55 amPHL - MTJ

1 stop8h 13mDelta

Sun 1/252:05 pmMTJ - PHL

1 stop8h 16mDelta

Deal found 12/27

$249

Sun 2/16:30 amPHL - MTJ

2 stops10h 02mUnited Airlines

Fri 2/63:28 pmMTJ - PHL

1 stop6h 02mUnited Airlines

Deal found 12/27

$254

Sat 1/316:30 amPHL - DEN

1 stop9h 30mSouthwest

Sat 2/710:00 amDEN - PHL

Nonstop3h 40mSouthwest

Deal found 12/27

$259

Sat 1/176:21 amPHL - EGE

1 stop8h 06mAmerican Airlines

Fri 1/238:10 amEGE - PHL

1 stop6h 26mAmerican Airlines

Deal found 12/27

$290

Fri 3/136:00 amPHL - HDN

1 stop7h 23mJetBlue

Thu 3/1912:18 pmHDN - PHL

1 stop7h 29mJetBlue

Deal found 12/26

$271

Mon 1/196:55 amPHL - HDN

1 stop7h 46mDelta

Wed 1/281:46 pmHDN - PHL

1 stop8h 35mDelta

Deal found 12/26

$249

Mon 1/1910:30 amPHL - HDN

2 stops11h 46mUnited Airlines

Fri 1/237:00 amHDN - PHL

1 stop6h 50mUnited Airlines

Deal found 12/27

$254

Fri 1/235:00 amPHL - EGE

1 stop9h 27mAmerican Airlines

Tue 1/2712:13 pmEGE - PHL

2 stops9h 42mAmerican Airlines

Deal found 12/26

$294

Thu 5/78:25 amPHL - DEN

1 stop9h 05mJetBlue

Sun 5/1011:08 pmDEN - PHL

1 stop6h 27mJetBlue

Deal found 12/27

$277

Fri 1/28:36 pmPHL - COS

2 stops23h 38mMultiple Airlines

Fri 1/3010:30 amCOS - PHL

1 stop11h 48mMultiple Airlines

Deal found 12/26

$387

Thu 1/223:43 pmPHL - DRO

1 stop6h 48mUnited Airlines

Sun 1/251:38 pmDRO - PHL

1 stop7h 52mUnited Airlines

Deal found 12/27

$278

Wed 4/158:25 amPHL - DEN

1 stop9h 05mJetBlue

Sun 4/2611:08 pmDEN - PHL

1 stop6h 27mJetBlue

Deal found 12/27

$280

Wed 2/185:31 amPHL - EGE

1 stop7h 19mDelta

Thu 2/263:10 pmEGE - PHL

1 stop7h 14mDelta

Deal found 12/26

$289

Thu 3/268:35 amPHL - ASE

1 stop8h 21mAmerican Airlines

Tue 3/312:47 pmASE - PHL

1 stop8h 07mAmerican Airlines

Deal found 12/27

$318

Last-minute flights from Philadelphia to Colorado
Discover last-minute flight deals from Philadelphia to Colorado. Data last updated December 28, 2025 and is based on user searches.

Sat 1/106:11 pmPHL - DEN

2 stops39h 59mMultiple Airlines

Sat 1/246:00 amDEN - PHL

1 stop11h 13mMultiple Airlines

Deal found 12/26

$160

Sun 1/115:40 pmPHL - DEN

2 stops44h 38mMultiple Airlines

Sat 1/246:00 amDEN - PHL

1 stop11h 13mMultiple Airlines

Deal found 12/26

$158

Sun 1/184:45 pmPHL - DEN

1 stop25h 56mFrontier

Sat 1/246:00 amDEN - PHL

1 stop11h 13mFrontier

Deal found 12/26

$145

Sun 1/184:45 pmPHL - DEN

1 stop25h 56mFrontier

Wed 1/211:20 pmDEN - PHL

1 stop19h 29mFrontier

Deal found 12/27

$151

Tue 1/201:40 pmPHL - DEN

2 stops22h 33mMultiple Airlines

Sat 2/76:00 amDEN - PHL

1 stop11h 13mMultiple Airlines

Deal found 12/26

$150

Thu 1/2211:59 amPHL - DEN

1 stop10h 01mFrontier

Sat 1/246:00 amDEN - PHL

1 stop11h 13mFrontier

Deal found 12/26

$157

Thu 1/228:00 amPHL - MTJ

1 stop7h 08mDelta

Sun 1/252:05 pmMTJ - PHL

1 stop8h 16mDelta

Deal found 12/26

$249

Sat 1/249:04 pmPHL - DEN

1 stop17h 15mFrontier

Tue 1/277:30 amDEN - PHL

1 stop15h 12mFrontier

Deal found 12/27

$146

Sat 1/245:30 amPHL - DEN

1 stop8h 49mFrontier

Sat 1/316:00 amDEN - PHL

1 stop11h 13mFrontier

Deal found 12/27

$147

Sat 1/248:20 amPHL - DEN

2 stops25h 59mMultiple Airlines

Tue 1/277:30 amDEN - PHL

1 stop15h 12mMultiple Airlines

Deal found 12/27

$152

Tue 1/276:00 amPHL - DEN

1 stop8h 19mFrontier

Tue 1/276:32 pmDEN - PHL

1 stop14h 05mFrontier

Deal found 12/27

$149

Tue 1/276:00 amPHL - DEN

1 stop8h 19mMultiple Airlines

Tue 1/277:59 pmDEN - PHL

2 stops25h 51mMultiple Airlines

Deal found 12/27

$154

One-way flights from Philadelphia to Colorado
Search for one-way flight options from Philadelphia to Colorado. Find affordable one-way fares based on user searches. Data last updated December 28, 2025.

Sat 1/178:00 amPHL - DEN

2 stops25h 28mFrontier

Deal found 12/28

$100

Thu 2/56:00 amPHL - DEN

2 stops32h 19mMultiple Airlines

Deal found 12/28

$101

Thu 1/226:00 amPHL - DEN

2 stops17h 49mFrontier

Deal found 12/28

$102

Thu 1/1512:54 pmPHL - DEN

1 stop10h 55mFrontier

Deal found 12/28

$103

Fri 1/308:18 pmPHL - DEN

2 stops18h 01mMultiple Airlines

Deal found 12/28

$104

Sat 1/176:11 pmPHL - DEN

2 stops23h 10mMultiple Airlines

Deal found 12/26

$105

Fri 1/232:43 pmPHL - DEN

2 stops23h 36mMultiple Airlines

Deal found 12/26

$106

Sun 1/186:45 amPHL - DEN

2 stops16h 28mFrontier

Deal found 12/28

$107

Thu 2/125:42 pmPHL - DEN

Nonstop4h 30mFrontier

Deal found 12/26

$108

Mon 3/98:33 pmPHL - DEN

Nonstop4h 39mFrontier

Deal found 12/28

$109

Mon 2/235:47 pmPHL - DEN

Nonstop4h 30mFrontier

Deal found 12/27

$110

Tue 3/246:00 amPHL - DEN

1 stop8h 22mJetBlue

Deal found 12/28

$111

Find flight deals from Philadelphia to Colorado

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$142 (Kiwi.com)
One-way from	$100 (Kiwi.com)
Popular in	December
Cheapest in	July
Average price	$394
Good round-trip deal	$293 or less
Good one-way deal	$208 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

Search Deals

One-way flight from Philadelphia to Colorado

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($23 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Philadelphia to Colorado.

Search Deals

Price to beat on a one-way flight from Philadelphia to Colorado.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sun 3/29

6:00 am-12:22 pm

1 stop8h 22m

Denver Intl

Mon 4/6

11:15 pm-8:00 am

1 stop6h 45m

$221

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 4/23

8:25 am-3:30 pm

1 stop9h 05m

Denver Intl

Tue 4/28

11:08 pm-7:35 am

1 stop6h 27m

$221

PhiladelphiaVail

PHL - EGE

PHLEGE

Philadelphia

Tue 3/17

6:55 am-2:11 pm

1 stop9h 16m

Vail Eagle County

Tue 3/24

3:31 pm-12:57 am

1 stop7h 26m

$237

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 2/26

1:05 pm-3:25 pm

Nonstop4h 20m

Denver Intl

Tue 3/3

4:35 pm-10:00 pm

Nonstop3h 25m

$237

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Mon 2/23

8:00 am-10:30 am

Nonstop4h 30m

Denver Intl

Sat 2/28

5:50 pm-11:23 pm

Nonstop3h 33m

$237

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sat 2/21

4:00 pm-8:35 pm

1 stop6h 35m

Denver Intl

Mon 2/23

4:50 pm-10:15 pm

Nonstop3h 25m

$247

PhiladelphiaMontrose

PHL - MTJ

PHLMTJ

Philadelphia

Wed 2/18

5:31 am-1:14 pm

1 stop9h 43m

Montrose County

Mon 2/23

2:13 pm-12:24 am

1 stop8h 11m

$249

PhiladelphiaHayden

PHL - HDN

PHLHDN

Philadelphia

Mon 2/23

6:27 am-11:00 am

1 stop6h 33m

Hayden Yampa Valley

Fri 2/27

3:30 pm-11:30 pm

1 stop6h 00m

$249

PhiladelphiaMontrose

PHL - MTJ

PHLMTJ

Philadelphia

Sun 2/1

6:55 am-1:08 pm

1 stop8h 13m

Montrose County

Fri 2/6

2:05 pm-12:21 am

1 stop8h 16m

$249

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 1/21

6:40 am-9:05 am

Nonstop4h 25m

Denver Intl

Wed 1/21

4:35 pm-10:00 pm

Nonstop3h 25m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 60 results

...

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 $88). Flying from Philadelphia to Colorado in May is currently the most expensive (average of $143). 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?

It’s optimal to fly from Philadelphia to Colorado in the evening. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Philadelphia to Colorado?

Travelers seeking maximum savings on their Philadelphia to Colorado flight should consider departing on Friday at noon when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Philadelphia to Colorado

The most flights from PHL to USCO are scheduled on a Friday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Colorado

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Philadelphia to Colorado to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

8.0

Very good

4,256 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,019 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,113 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,072 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.8

Fair

3,065 reviews

Southwest

8.0

Very good

4,256 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

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, 126 users have taken a look at flights from Philadelphia to Colorado.
How long is the flight from Philadelphia to Colorado?
A quick flight from Philadelphia to Colorado can take about 4h 20m. JetBlue provides one of the quickest options available for as low as $237. The distance between Philadelphia and Colorado is about 1553 mi. This flight may include one or multiple stops.
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 $65 on Frontier. Other airlines that offer cheap prices include JetBlue from $79 and American Airlines from $86 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 - Hayden Yampa Valley or Philadelphia - Aspen Pitkin 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: United Airlines (91%), Air Canada (89%), Frontier (84%).
What are the cheapest flights from Philadelphia to Colorado?
The cheapest flight price from Philadelphia to Colorado is $109. On average you can expect to pay $820. The most popular route, (Philadelphia - Denver Intl), can usually be booked for $136.
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 $88). Flying from Philadelphia to Colorado in May is currently the most expensive (average of $143). 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

Browse thousands of different options on Cheapflights for your next trip

Top 8 airlines flying from Philadelphia to Colorado

Airline	Cheapest	Average	Flexibility	On-time
Allegiant Air	Cheapest$106	Average$194	FlexibilityNo cancel fee	On-time88%
Frontier	Cheapest$117	Average$227	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$134	Average$402	FlexibilityNo cancel fee	On-timeN/A
Sun Country Air	Cheapest$177	Average$275	FlexibilityNo cancel fee	On-time83%
Southwest	Cheapest$187	Average$458	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$191	Average$511	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$201	Average$479	FlexibilityNo cancel fee	On-time71%
JetBlue	Cheapest$207	Average$293	FlexibilityNo cancel fee	On-time62%

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$100+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Philadelphia to Colorado with Cheapflights

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Cheap flight deals from Philadelphia to Colorado

Cheapest flights from Philadelphia to ColoradoExplore 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 December 28, 2025.

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 December 28, 2025.

Find flight deals from Philadelphia to Colorado

Keep the following information in mind while searching for Philadelphia to Colorado flight deals. Data was last updated December 28, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

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Best time to book a flight from Philadelphia to Colorado

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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?

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 December 28, 2025.

What is the cheapest day to fly from Philadelphia to Colorado?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Colorado. Price data was last updated on December 16, 2024.

Weekly flight availability from Philadelphia to Colorado

Reviews of airlines servicing Colorado

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Philadelphia to Colorado to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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Alternative routes for Philadelphia to Colorado

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Top 8 airlines flying from Philadelphia to Colorado

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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 December 28, 2025.