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$98+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$171
(Cheapflightsfares)

One-way from

$99
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$288

Good round-trip deal

$158 or less

Good one-way deal

$77 or less
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. 5% potential increase in price ($16 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 June 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 June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Sat 8/166:15 amPHL - DEN
Nonstop4h 13mFrontier
Wed 8/2011:15 pmDEN - PHL
Nonstop3h 39mFrontier
Deal found 6/11$171
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 7/286:00 pmDCA - DEN
Nonstop4h 05mFrontier
Mon 8/46:38 amDEN - DCA
Nonstop3h 26mFrontier
Deal found 6/12$185
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/98:06 pmIAD - DEN
Nonstop3h 51mUnited Airlines
Sat 8/166:01 amDEN - IAD
Nonstop3h 26mUnited Airlines
Deal found 6/11$187
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/205:31 pmLGA - DEN
1 stop6h 02mFrontier
Thu 10/234:14 pmDEN - LGA
Nonstop3h 52mFrontier
Deal found 6/10$189
This American Airlines deal was found by Cheapflights users on 6/10. 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 9/135:40 pmIAD - DEN
1 stop6h 29mAmerican Airlines
Sat 9/1311:59 pmDEN - IAD
1 stop6h 47mAmerican Airlines
Deal found 6/10$191
This American Airlines deal was found by Cheapflights users on 6/11. 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 10/18:33 amPHL - DEN
Nonstop4h 04mAmerican Airlines
Wed 10/12:13 pmDEN - PHL
Nonstop3h 48mAmerican Airlines
Deal found 6/11$192
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Fri 8/85:40 pmPIT - DEN
Nonstop3h 33mFrontier
Mon 8/1111:33 amDEN - PIT
Nonstop3h 12mFrontier
Deal found 6/11$196
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 9/62:29 pmLGA - DEN
Nonstop4h 24mDelta
Wed 9/106:25 amDEN - LGA
Nonstop3h 47mDelta
Deal found 6/10$197
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 8/167:55 pmJFK - DEN
Nonstop4h 54mDelta
Tue 8/1911:59 pmDEN - JFK
Nonstop4h 01mDelta
Deal found 6/10$197
This American Airlines deal was found by Cheapflights users on 6/12. 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 8/195:55 amDCA - DEN
1 stop6h 11mAmerican Airlines
Wed 8/277:22 amDEN - DCA
1 stop6h 54mAmerican Airlines
Deal found 6/12$197
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:59 amJFK - DEN
1 stop15h 16mFrontier
Fri 11/1412:04 amDEN - JFK
1 stop8h 20mFrontier
Deal found 6/9$203
This Southwest deal was found by Cheapflights users on 6/11. 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 9/234:45 pmPHL - DEN
Nonstop4h 00mSouthwest
Sat 9/2711:05 amDEN - PHL
Nonstop3h 35mSouthwest
Deal found 6/11$212

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 June 12, 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 8/16

6:15 am-8:28 am

Nonstop4h 13m

Denver Intl

Wed 8/20

11:15 pm-4:54 am

Nonstop3h 39m

$171

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Mon 7/28

7:00 am-8:56 am

Nonstop3h 56m

Denver Intl

Mon 8/4

6:38 am-12:04 pm

Nonstop3h 26m

$185

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 8/9

8:06 pm-9:57 pm

Nonstop3h 51m

Denver Intl

Sat 8/16

6:01 am-11:27 am

Nonstop3h 26m

$187

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Mon 10/20

5:31 pm-9:33 pm

1 stop6h 02m

Denver Intl

Thu 10/23

4:14 pm-10:06 pm

Nonstop3h 52m

$189

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 9/13

5:40 pm-10:09 pm

1 stop6h 29m

Denver Intl

Sat 9/13

11:59 pm-8:46 am

1 stop6h 47m

$191

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 10/1

8:33 am-10:37 am

Nonstop4h 04m

Denver Intl

Wed 10/1

2:13 pm-8:01 pm

Nonstop3h 48m

$192

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Fri 8/8

5:40 pm-7:13 pm

Nonstop3h 33m

Denver Intl

Mon 8/11

11:33 am-4:45 pm

Nonstop3h 12m

$196

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 9/6

2:29 pm-4:53 pm

Nonstop4h 24m

Denver Intl

Wed 9/10

6:25 am-12:12 pm

Nonstop3h 47m

$197

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Sat 8/16

7:55 pm-10:49 pm

Nonstop4h 54m

Denver Intl

Tue 8/26

12:11 pm-6:35 pm

Nonstop4h 24m

$197

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 8/19

5:55 am-10:06 am

1 stop6h 11m

Denver Intl

Wed 8/27

7:22 am-4:16 pm

1 stop6h 54m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 June 12, 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 June 12, 2025.

The most flights from USPA to USCO are scheduled on a Thursday (16 on average). You will have fewer flight options on Saturday, 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 June 12, 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
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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 153 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 United Airlines, with whom users have recently found tickets for as low as $99. However, be on the lookout for offers from American Airlines and Allegiant Air, 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$44Average$187FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$82Average$275FlexibilityNo cancel feeOn-time83%
Allegiant AirCheapest$106Average$215FlexibilityNo cancel feeOn-time88%
DeltaCheapest$134Average$381FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$168Average$475FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$186Average$546FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$194Average$457FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$207Average$346FlexibilityNo cancel feeOn-time62%

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