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$56+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$125
(Cheapflightsfares)

One-way from

$56
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$290

Good round-trip deal

$153 or less

Good one-way deal

$75 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. 6% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 9/2410:56 pmLGA - DEN
Nonstop4h 08mFrontier
Sat 9/274:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 9/13$125
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:00 pmJFK - DEN
Nonstop4h 24mFrontier
Fri 10/2412:36 amDEN - JFK
1 stop7h 48mFrontier
Deal found 9/14$125
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sat 9/2710:56 pmLGA - DEN
Nonstop4h 08mFrontier
Sat 10/44:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 9/13$128
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 10/151:00 pmJFK - DEN
Nonstop4h 24mFrontier
Mon 10/206:10 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 9/13$130
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1810:56 pmLGA - DEN
Nonstop4h 08mFrontier
Fri 9/1912:04 amDEN - LGA
1 stop9h 57mFrontier
Deal found 9/14$131
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/221:00 pmJFK - DEN
Nonstop4h 24mFrontier
Mon 10/276:10 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 9/15$131
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/81:00 pmJFK - DEN
Nonstop4h 24mFrontier
Wed 10/811:59 pmDEN - JFK
1 stop8h 01mFrontier
Deal found 9/14$132
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
Thu 10/210:56 pmLGA - DEN
Nonstop4h 08mFrontier
Tue 10/74:08 pmDEN - LGA
Nonstop3h 52mFrontier
Deal found 9/13$133
This Priceline deal was found by Cheapflights users on 9/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1110:55 pmLGA - DEN
Nonstop4h 13mFrontier
Sat 10/184:08 pmDEN - LGA
Nonstop3h 52mFrontier
Deal found 9/13$134
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:56 pmLGA - DEN
Nonstop4h 08mFrontier
Sat 10/44:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 9/14$138
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 10/151:00 pmJFK - DEN
Nonstop4h 24mFrontier
Wed 10/1512:36 amDEN - JFK
1 stop7h 48mFrontier
Deal found 9/15$138
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:55 pmLGA - DEN
Nonstop4h 13mFrontier
Tue 10/214:08 pmDEN - LGA
Nonstop3h 52mFrontier
Deal found 9/14$139

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 September 15, 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

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Wed 10/15

10:20 am-5:00 pm

2 stops8h 40m

Denver Intl

Sat 10/18

9:55 am-8:30 pm

2 stops8h 35m

$173

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 10/21

10:09 pm-11:57 pm

Nonstop3h 48m

Denver Intl

Sat 10/25

8:01 am-1:28 pm

Nonstop3h 27m

$177

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 12/6

7:30 am-10:02 am

Nonstop4h 32m

Denver Intl

Wed 12/17

6:50 am-12:33 pm

Nonstop3h 43m

$177

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 10/15

8:00 am-10:06 am

Nonstop4h 06m

Denver Intl

Sat 10/18

10:00 am-3:41 pm

Nonstop3h 41m

$178

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 11/12

10:10 pm-12:15 am

Nonstop4h 05m

Denver Intl

Mon 11/17

11:59 pm-5:16 am

Nonstop3h 17m

$197

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 12/4

4:55 pm-7:05 pm

Nonstop4h 10m

Denver Intl

Tue 12/9

5:15 pm-10:35 pm

Nonstop3h 20m

$198

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Fri 11/14

5:30 pm-11:45 pm

1 stop8h 15m

Denver Intl

Sun 11/16

6:20 am-12:05 pm

Nonstop3h 45m

$199

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 10/30

10:10 am-1:35 pm

1 stop5h 25m

Denver Intl

Tue 11/4

10:55 am-4:20 pm

Nonstop3h 25m

$204

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 11/8

7:30 am-9:52 am

Nonstop4h 22m

Denver Intl

Tue 11/18

11:23 am-5:00 pm

Nonstop3h 37m

$207

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 12/6

9:15 am-3:40 pm

1 stop8h 25m

Denver Intl

Mon 12/15

11:41 am-5:22 pm

Nonstop3h 41m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

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 September 15, 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 September 15, 2025.

The most flights from USPA to USCO are scheduled on a Monday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (10 on average).

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 September 15, 2025.
Read through reviews of airlines operating flights from Pennsylvania to Colorado, such as Southwest, United Airlines, and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Allegiant Air
7.2
Good
699 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 118 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Pennsylvania to Colorado?

    Southwest, United Airlines, and Delta can get you from Pennsylvania to Colorado in just under 3h 48m. Your travel time can differ by up to 4h 52m. The distance between Pennsylvania and Colorado is about 1448 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from Frontier and United 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

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$44Average$216FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$106Average$208FlexibilityNo cancel feeOn-time88%
JetBlueCheapest$130Average$340FlexibilityNo cancel feeOn-time62%
DeltaCheapest$134Average$387FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$168Average$449FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$193Average$456FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$195Average$559FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$251Average$280FlexibilityNo cancel feeOn-time83%

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