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$97+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$177
(CheapOair)

One-way from

$97
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$314

Good round-trip deal

$173 or less

Good one-way deal

$72 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. 6% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
Sun 6/226:15 amPHL - DEN
Nonstop4h 14mFrontier
Sat 6/2811:30 pmDEN - PHL
Nonstop3h 40mFrontier
Deal found 4/29$184
This Justfly.com deal was found by Cheapflights users on 4/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/79:55 pmLGA - DEN
Nonstop4h 22mFrontier
Fri 6/134:14 pmDEN - LGA
Nonstop3h 51mFrontier
Deal found 4/28$200
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 6/47:40 pmPHL - DEN
Nonstop4h 13mAmerican Airlines
Wed 6/119:01 amDEN - PHL
Nonstop3h 40mAmerican Airlines
Deal found 4/29$203
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:00 pmDCA - DEN
Nonstop4h 08mFrontier
Sun 6/16:38 amDEN - DCA
Nonstop3h 22mFrontier
Deal found 4/29$205
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 7/28:15 amPHL - DEN
1 stop8h 31mUnited Airlines
Wed 7/95:40 pmDEN - PHL
Nonstop3h 39mUnited Airlines
Deal found 4/28$210
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 6/48:20 amIAD - DEN
Nonstop3h 50mUnited Airlines
Sat 6/76:00 amDEN - IAD
Nonstop3h 26mUnited Airlines
Deal found 4/29$217
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/3012:09 pmPHL - DEN
1 stop7h 18mMultiple Airlines
Tue 6/311:30 pmDEN - PHL
Nonstop3h 40mMultiple Airlines
Deal found 4/29$222
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 7/156:00 amIAD - DEN
1 stop5h 41mDelta
Tue 7/151:41 pmDEN - IAD
1 stop7h 35mDelta
Deal found 4/29$231
This American Airlines deal was found by Cheapflights users on 4/29. 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 7/15:15 pmDCA - DEN
1 stop7h 03mAmerican Airlines
Tue 7/111:59 pmDEN - DCA
1 stop7h 30mAmerican Airlines
Deal found 4/29$233
This Sun Country Air deal was found by Cheapflights users on 4/29. 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.
Fri 10/1012:40 pmIAD - DEN
1 stop5h 48mSun Country Air
Thu 10/1610:03 amDEN - IAD
1 stop24h 24mSun Country Air
Deal found 4/29$235
This Frontier deal was found by Cheapflights users on 4/29. 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.
Tue 5/131:00 pmJFK - DEN
1 stop12h 17mFrontier
Fri 5/167:12 pmDEN - JFK
1 stop13h 13mFrontier
Deal found 4/29$236
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 7/156:40 amDCA - DEN
1 stop5h 21mDelta
Mon 7/2112:55 amDEN - DCA
1 stop5h 41mDelta
Deal found 4/29$237

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 April 30, 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

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Sat 7/5

6:15 am-8:28 am

Nonstop4h 13m

Denver Intl

Tue 7/15

11:30 pm-5:09 am

Nonstop3h 39m

$177

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 6/7

9:55 pm-12:17 am

Nonstop4h 22m

Denver Intl

Fri 6/13

4:14 pm-10:05 pm

Nonstop3h 51m

$200

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 6/4

7:40 pm-9:53 pm

Nonstop4h 13m

Denver Intl

Wed 6/11

9:01 am-2:41 pm

Nonstop3h 40m

$203

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Fri 7/4

3:39 pm-5:58 pm

Nonstop4h 19m

Denver Intl

Sat 7/12

11:59 pm-5:37 am

Nonstop3h 38m

$204

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 5/28

6:00 pm-8:08 pm

Nonstop4h 08m

Denver Intl

Sun 6/1

6:38 am-12:00 pm

Nonstop3h 22m

$205

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 6/4

6:35 am-8:24 am

Nonstop3h 49m

Denver Intl

Wed 6/11

6:00 am-11:26 am

Nonstop3h 26m

$217

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Fri 5/30

12:09 pm-5:27 pm

1 stop7h 18m

Denver Intl

Tue 6/3

11:30 pm-5:10 am

Nonstop3h 40m

$222

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 7/15

6:00 am-9:41 am

1 stop5h 41m

Denver Intl

Tue 7/15

1:41 pm-11:16 pm

1 stop7h 35m

$231

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 7/1

5:15 pm-10:18 pm

1 stop7h 03m

Denver Intl

Tue 7/1

11:59 pm-9:29 am

1 stop7h 30m

$233

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Fri 10/10

12:40 pm-4:28 pm

1 stop5h 48m

Denver Intl

Thu 10/16

10:03 am-12:27 pm

1 stop24h 24m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 April 30, 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 April 30, 2025.

The most flights from USPA to USCO are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 30, 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
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,405 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 150 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 $97. However, be on the lookout for offers from American Airlines and Southwest, 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

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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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$43Average$177FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$82Average$275FlexibilityNo cancel feeOn-time83%
Allegiant AirCheapest$105Average$219FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$184Average$484FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$184Average$564FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$192Average$461FlexibilityNo cancel feeOn-time63%
DeltaCheapest$199Average$384FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$207Average$327FlexibilityNo cancel feeOn-time62%

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