HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Colorado

$92+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Colorado 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.

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 April 16, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$158
(Cheapflightsfares)

One-way from

$92
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$311

Good round-trip deal

$272 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for Philadelphia-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Denver Intl flights.
Search Deals
From Philadelphia to Colorado
Search Deals
One-way flight from Philadelphia to Colorado
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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.
Search Deals

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 April 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/15. 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 5/286:15 amPHL - DEN
Nonstop4h 22mFrontier
Sat 5/3111:30 pmDEN - PHL
Nonstop3h 37mFrontier
Deal found 4/15$158
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/87:40 pmPHL - DEN
Nonstop4h 13mAmerican Airlines
Wed 5/147:00 amDEN - PHL
Nonstop3h 36mAmerican Airlines
Deal found 4/14$181
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Sat 5/248:31 amPHL - DEN
1 stop8h 26mUnited Airlines
Tue 5/2711:45 pmDEN - PHL
Nonstop3h 37mUnited Airlines
Deal found 4/15$209
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:30 amPHL - DEN
1 stop6h 45mSouthwest
Tue 5/135:30 pmDEN - PHL
Nonstop3h 35mSouthwest
Deal found 4/14$216
This JetBlue deal was found by Cheapflights users on 4/16. 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.
Sat 5/106:00 amPHL - DEN
1 stop8h 23mJetBlue
Sat 5/171:19 pmDEN - PHL
1 stop7h 02mJetBlue
Deal found 4/16$229
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/88:00 amPHL - HDN
1 stop6h 41mUnited Airlines
Sun 5/111:45 pmHDN - PHL
1 stop7h 50mUnited Airlines
Deal found 4/16$257
This Delta deal was found by Cheapflights users on 4/15. 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.
Thu 5/86:00 amPHL - DEN
1 stop5h 33mDelta
Fri 5/912:59 amDEN - PHL
1 stop7h 37mDelta
Deal found 4/15$257
This Trip.com deal was found by Cheapflights users on 4/15. 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.
Thu 5/154:00 pmPHL - DEN
1 stop8h 03mMultiple Airlines
Thu 5/2211:30 pmDEN - PHL
Nonstop3h 37mMultiple Airlines
Deal found 4/15$292
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Tue 7/87:00 pmPHL - DRO
1 stop7h 10mAmerican Airlines
Tue 7/157:20 pmDRO - PHL
1 stop8h 30mAmerican Airlines
Deal found 4/16$318
This Delta deal was found by Cheapflights users on 4/16. 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.
Wed 7/26:00 amPHL - COS
1 stop6h 02mDelta
Wed 7/91:40 pmCOS - PHL
1 stop8h 47mDelta
Deal found 4/16$320
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/131:45 pmPHL - GJT
1 stop10h 03mAmerican Airlines
Tue 5/205:00 amGJT - PHL
1 stop7h 46mAmerican Airlines
Deal found 4/14$321
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Tue 7/226:46 amPHL - MTJ
1 stop9h 00mAmerican Airlines
Tue 7/292:37 pmMTJ - PHL
1 stop8h 22mAmerican Airlines
Deal found 4/15$343

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 April 16, 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

Wed 5/28

6:15 am-8:37 am

Nonstop4h 22m

Denver Intl

Sat 5/31

11:30 pm-5:07 am

Nonstop3h 37m

$158

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 5/8

7:40 pm-9:53 pm

Nonstop4h 13m

Denver Intl

Wed 5/14

7:00 am-12:36 pm

Nonstop3h 36m

$181

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sat 5/24

8:31 am-2:57 pm

1 stop8h 26m

Denver Intl

Tue 5/27

11:45 pm-5:22 am

Nonstop3h 37m

$209

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 5/6

6:30 am-11:15 am

1 stop6h 45m

Denver Intl

Tue 5/13

5:30 pm-11:05 pm

Nonstop3h 35m

$216

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sat 5/10

6:00 am-12:23 pm

1 stop8h 23m

Denver Intl

Sat 5/17

1:19 pm-10:21 pm

1 stop7h 02m

$229

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 5/8

6:59 pm-12:12 am

1 stop7h 13m

Denver Intl

Sun 5/11

7:00 am-5:10 pm

1 stop8h 10m

$257

PhiladelphiaHayden

PHL - HDN

PHLHDN

Philadelphia

Thu 5/8

8:00 am-12:41 pm

1 stop6h 41m

Hayden Yampa Valley

Sun 5/11

1:45 pm-11:35 pm

1 stop7h 50m

$257

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 5/15

4:00 pm-10:03 pm

1 stop8h 03m

Denver Intl

Thu 5/22

11:30 pm-5:07 am

Nonstop3h 37m

$292

PhiladelphiaDurango

PHL - DRO

PHLDRO

Philadelphia

Tue 7/8

7:00 pm-12:10 am

1 stop7h 10m

Durango La Plata County

Tue 7/15

7:20 pm-5:50 am

1 stop8h 30m

$318

PhiladelphiaColorado Springs

PHL - COS

PHLCOS

Philadelphia

Wed 7/2

6:00 am-10:02 am

1 stop6h 02m

Colorado Springs

Wed 7/9

1:40 pm-12:27 am

1 stop8h 47m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 50 results
1
2
3
...
5

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 April 16, 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 April 16, 2025.

The most flights from PHL to USCO are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 April 16, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines 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
8.0
Very good
4,282 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.6

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
8.0
Very good
4,282 reviews
Southwest
8.0
Very good
4,282 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.6

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
7,916 reviews
Southwest
8.0
Very good
4,282 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.6

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
8,665 reviews
Southwest
8.0
Very good
4,282 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.6

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
2,926 reviews
Southwest
8.0
Very good
4,282 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.6

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.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,282 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.6

Food

7.1

Boarding

8.2

Crew

8.6

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, 162 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 $92 on American Airlines. Other airlines that offer cheap prices include Frontier from $94 and Southwest from $118 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 - Grand Junction Regnl or Philadelphia - Colorado Springs 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 (89%), Frontier (88%), Qatar Airways (85%).

  • What are the cheapest flights from Philadelphia to Colorado?

    The cheapest flight price from Philadelphia to Colorado is $92. On average you can expect to pay $749. The most popular route, (Philadelphia - Denver Intl), can usually be booked for $161.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Fort Lauderdale flights
LaGuardia to Fort Lauderdale flights
John F Kennedy Intl to Los Angeles flights
Newark to Orlando flights
John F Kennedy Intl to Miami flights
Newark to Los Angeles flights
LaGuardia to Miami flights
Newark to Miami flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Orlando flights
John F Kennedy Intl to O'Hare Intl flights
LaGuardia to Dallas/Fort Worth flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to Orlando flights
LaGuardia to Atlanta flights
Newark to O'Hare Intl flights
Newark to Seattle flights
John F Kennedy Intl to Seattle flights
Newark to Tampa flights
John F Kennedy Intl to West Palm Beach flights
Newark to Dallas/Fort Worth flights
LaGuardia to Los Angeles flights
Newark to San Francisco flights
LaGuardia to Hobby flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to Hobby flights
LaGuardia to Las Vegas flights
Newark to Hobby flights
Dulles Intl to Los Angeles flights
Newark to Denver flights
Newark to Atlanta flights
Dulles Intl to Las Vegas flights
Reagan-National to Los Angeles flights
Dulles Intl to Dallas/Fort Worth flights
Newark to Midway flights
Reagan-National to Miami flights
John F Kennedy Intl to Midway flights
Philadelphia to Orlando flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to Tampa flights
Newark to George Bush Intcntl flights
John F Kennedy Intl to Denver flights
John F Kennedy Intl to Austin flights
Newark to Sky Harbor Intl flights
John F Kennedy Intl to Tampa flights
Philadelphia to Fort Lauderdale flights

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 April 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$82Average$275FlexibilityNo cancel feeOn-time83%
FrontierCheapest$86Average$207FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$182Average$503FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$187Average$626FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$190Average$478FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$207Average$325FlexibilityNo cancel feeOn-time62%
DeltaCheapest$221Average$376FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.