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$78+ Cheap flights from Pennsylvania 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 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Pennsylvania to Colorado

Keep the following information in mind while searching for Pennsylvania to Colorado flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$138
(Frontier)

One-way from

$78
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$334

Good round-trip deal

$215 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 Pennsylvania to Colorado
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One-way flight from Pennsylvania 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 Pennsylvania to Colorado.
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Price to beat on a one-way flight from Pennsylvania to Colorado.
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Find flight deals from Pennsylvania to Colorado

Cheapest flights from Pennsylvania to Colorado
Explore the most affordable flight options available from Pennsylvania to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Frontier deal was found by Cheapflights users on 3/31. 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 5/36:00 pmDCA - DEN
Nonstop4h 08mFrontier
Tue 5/611:30 amDEN - DCA
Nonstop3h 29mFrontier
Deal found 3/31$138
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 4/146:40 amPHL - DEN
Nonstop4h 21mFrontier
Tue 4/1511:50 pmDEN - PHL
Nonstop3h 30mFrontier
Deal found 3/30$170
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 5/138:00 amPHL - DEN
Nonstop4h 17mUnited Airlines
Tue 5/205:59 pmDEN - PHL
Nonstop3h 36mUnited Airlines
Deal found 3/30$171
This American Airlines deal was found by Cheapflights users on 3/30. 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 4/297:55 pmPHL - DEN
Nonstop4h 11mAmerican Airlines
Sat 5/37:00 amDEN - PHL
Nonstop3h 35mAmerican Airlines
Deal found 3/30$176
This Southwest deal was found by Cheapflights users on 3/31. 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 4/241:35 pmPHL - DEN
Nonstop4h 10mSouthwest
Tue 4/2911:00 amDEN - PHL
Nonstop3h 35mSouthwest
Deal found 3/31$191
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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.
Tue 6/310:55 pmLGA - DEN
Nonstop4h 22mFrontier
Tue 6/104:14 pmDEN - LGA
Nonstop3h 51mFrontier
Deal found 3/30$195
This Southwest deal was found by Cheapflights users on 3/30. 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.
Sat 5/35:50 pmIAD - DEN
Nonstop4h 05mSouthwest
Sat 5/105:50 pmDEN - IAD
Nonstop3h 25mSouthwest
Deal found 3/30$197
This United Airlines deal was found by Cheapflights users on 3/30. 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 5/108:20 amIAD - DEN
Nonstop3h 57mUnited Airlines
Sat 5/2411:50 pmDEN - IAD
Nonstop3h 25mUnited Airlines
Deal found 3/30$207
This JetBlue deal was found by Cheapflights users on 3/30. 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 4/306:00 amPHL - DEN
1 stop8h 40mJetBlue
Fri 5/910:38 pmDEN - PHL
1 stop9h 00mJetBlue
Deal found 3/30$209
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Sat 5/32:12 pmIAD - DEN
1 stop6h 27mAmerican Airlines
Sat 5/1012:16 pmDEN - IAD
1 stop8h 41mAmerican Airlines
Deal found 3/31$217
This JetBlue deal was found by Cheapflights users on 3/31. 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.
Fri 5/306:09 amDCA - DEN
1 stop9h 34mJetBlue
Tue 6/1010:40 pmDEN - DCA
1 stop7h 20mJetBlue
Deal found 3/31$217
This Sun Country Air deal was found by Cheapflights users on 3/30. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2111:37 amIAD - DEN
1 stop7h 38mSun Country Air
Thu 4/245:50 pmDEN - IAD
1 stop16h 33mSun Country Air
Deal found 3/30$225

Cheapflights Fare Finder

Customize your flight search to find flights from Pennsylvania 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 March 31, 2025.
Use the filters below to find and compare flights from Pennsylvania to Colorado that are best for you.

Fly from

Pennsylvania

Fly to

Colorado

Route

Depart

Return

Price

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 5/3

6:00 pm-8:08 pm

Nonstop4h 08m

Denver Intl

Tue 5/6

11:30 am-4:59 pm

Nonstop3h 29m

$138

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Mon 4/14

6:40 am-9:01 am

Nonstop4h 21m

Denver Intl

Tue 4/15

11:50 pm-5:20 am

Nonstop3h 30m

$170

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 5/13

8:00 am-10:17 am

Nonstop4h 17m

Denver Intl

Tue 5/20

5:59 pm-11:35 pm

Nonstop3h 36m

$171

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Tue 4/29

7:55 pm-10:06 pm

Nonstop4h 11m

Denver Intl

Sat 5/3

7:00 am-12:35 pm

Nonstop3h 35m

$176

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Tue 6/3

10:55 pm-1:17 am

Nonstop4h 22m

Denver Intl

Tue 6/10

4:14 pm-10:05 pm

Nonstop3h 51m

$195

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 5/3

5:50 pm-7:55 pm

Nonstop4h 05m

Denver Intl

Sat 5/10

5:50 pm-11:15 pm

Nonstop3h 25m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 5/10

8:20 am-10:17 am

Nonstop3h 57m

Denver Intl

Sat 5/24

11:50 pm-5:15 am

Nonstop3h 25m

$207

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 4/30

6:00 am-12:40 pm

1 stop8h 40m

Denver Intl

Tue 5/6

1:23 pm-10:21 pm

1 stop6h 58m

$209

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 5/3

2:12 pm-9:16 pm

1 stop9h 04m

Denver Intl

Wed 5/7

8:00 am-4:17 pm

1 stop6h 17m

$217

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Fri 5/30

6:09 am-1:43 pm

1 stop9h 34m

Denver Intl

Thu 6/5

10:38 pm-8:00 am

1 stop7h 22m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Colorado

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

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

Currently, October is the cheapest month in which you can book a flight from Pennsylvania to Colorado (average of $197). Flying from Pennsylvania 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 PA to CO?

Find hourly flight availability from Pennsylvania 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 March 31, 2025.

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

Weekly flight availability from Pennsylvania to Colorado

Explore weekly flight availability from Pennsylvania 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 March 31, 2025.

The most flights from USPA to USCO are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 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 March 31, 2025.
Read through reviews of airlines operating flights from Pennsylvania to Colorado, such as Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,275 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,344 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Pennsylvania to Colorado flight route?

    This flight path from Pennsylvania to Colorado was viewed by 159 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $78. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Pennsylvania to Colorado for a low price.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Pennsylvania to Colorado (average of $197). Flying from Pennsylvania 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

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Alternative routes for Pennsylvania to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Pennsylvania to Colorado

Discover the top 8 airlines that operate flights from Pennsylvania 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$43Average$173FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$82Average$275FlexibilityNo cancel feeOn-time83%
Allegiant AirCheapest$104Average$217FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$182Average$576FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$183Average$492FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$187Average$459FlexibilityNo cancel feeOn-time63%
DeltaCheapest$199Average$396FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$207Average$327FlexibilityNo cancel feeOn-time62%
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