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$69+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
1 adult, Economy
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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 October 31, 2025.

This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:00 pmDCA - DEN
Nonstop4h 15mFrontier
Sat 12/204:38 pmDEN - DCA
Nonstop3h 21mFrontier
Deal found 10/30$134
This Frontier deal was found by Cheapflights users on 10/29. 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 12/28:00 amDCA - DEN
Nonstop4h 13mFrontier
Sat 12/67:40 amDEN - DCA
Nonstop3h 26mFrontier
Deal found 10/29$136
This CheapOair deal was found by Cheapflights users on 10/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1610:54 pmIAD - DEN
1 stop11h 49mFrontier
Wed 11/1910:45 amDEN - IAD
1 stop27h 46mFrontier
Deal found 10/31$137
This Frontier deal was found by Cheapflights users on 10/29. 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.
Wed 12/106:00 pmDCA - DEN
Nonstop4h 12mFrontier
Mon 12/1511:38 amDEN - DCA
Nonstop3h 21mFrontier
Deal found 10/29$137
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:00 pmDCA - DEN
Nonstop4h 15mFrontier
Mon 12/294:38 pmDEN - DCA
Nonstop3h 21mFrontier
Deal found 10/31$138
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:30 pmLGA - DEN
1 stop10h 58mFrontier
Tue 11/1812:59 amDEN - LGA
1 stop8h 30mFrontier
Deal found 10/29$139
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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.
Thu 11/276:00 pmDCA - DEN
Nonstop4h 09mFrontier
Mon 12/84:38 pmDEN - DCA
Nonstop3h 21mFrontier
Deal found 10/29$140
This Frontier deal was found by Cheapflights users on 10/31. 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.
Fri 11/144:00 pmJFK - DEN
Nonstop4h 26mFrontier
Mon 11/179:09 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 10/31$140
This Expedia deal was found by Cheapflights users on 10/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:21 amIAD - DEN
1 stop25h 49mFrontier
Sun 12/77:00 amDEN - IAD
1 stop23h 31mFrontier
Deal found 10/31$141
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:30 pmLGA - DEN
1 stop14h 32mFrontier
Sat 12/1311:25 pmDEN - LGA
1 stop10h 04mFrontier
Deal found 10/30$141
This Frontier deal was found by Cheapflights users on 10/29. 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.
Mon 11/104:00 pmJFK - DEN
Nonstop4h 26mFrontier
Wed 11/129:09 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 10/29$141
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:45 amIAD - DEN
1 stop17h 53mFrontier
Sat 12/611:25 pmDEN - IAD
1 stop9h 44mFrontier
Deal found 10/30$142

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 October 31, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$130
(Frontier)

One-way from

$69
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$299

Good round-trip deal

$228 or less

Good one-way deal

$106 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 Pennsylvania to Colorado
Search Deals
One-way flight from Pennsylvania to Colorado
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Pennsylvania to Colorado.
Search Deals
Price to beat on a one-way flight from Pennsylvania to Colorado.
Search Deals

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 October 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

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Sat 12/6

8:05 am-10:48 am

Nonstop4h 43m

Denver Intl

Tue 12/9

7:10 am-12:59 pm

Nonstop3h 49m

$167

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Fri 12/12

9:00 pm-11:45 pm

Nonstop4h 45m

Denver Intl

Sun 12/14

7:10 am-12:59 pm

Nonstop3h 49m

$167

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 1/28

5:15 pm-7:28 pm

Nonstop4h 13m

Denver Intl

Sat 1/31

7:45 am-1:12 pm

Nonstop3h 27m

$177

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Thu 12/11

8:23 am-11:05 am

Nonstop4h 42m

Denver Intl

Sun 12/14

11:28 pm-5:00 am

Nonstop3h 32m

$177

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 2/18

7:42 pm-9:47 pm

Nonstop4h 05m

Denver Intl

Wed 2/25

11:59 pm-5:18 am

Nonstop3h 19m

$177

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Thu 12/4

4:30 pm-7:01 pm

Nonstop4h 31m

Denver Intl

Sun 12/7

11:59 pm-5:44 am

Nonstop3h 45m

$177

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Sat 12/6

8:05 am-10:48 am

Nonstop4h 43m

Denver Intl

Sun 12/14

11:59 pm-5:44 am

Nonstop3h 45m

$177

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 12/10

6:00 am-11:05 am

1 stop7h 05m

Denver Intl

Tue 12/16

11:50 am-10:59 pm

1 stop9h 09m

$185

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Wed 1/7

7:30 am-10:25 am

Nonstop4h 55m

Denver Intl

Tue 1/13

11:25 am-5:17 pm

Nonstop3h 52m

$197

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Sat 11/15

7:55 pm-10:38 pm

Nonstop4h 43m

Denver Intl

Wed 11/19

7:10 am-12:53 pm

Nonstop3h 43m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

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, January is the cheapest month in which you can book a flight from Pennsylvania to Colorado (average of $82). Flying from Pennsylvania to Colorado in December is currently the most expensive (average of $142). 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 October 31, 2025.

It’s typically best to fly out from Pennsylvania to Colorado in the evening. Doing so could potentially save you 26% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Pennsylvania to Colorado?

Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to Colorado. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Pennsylvania to Colorado flight should consider departing on Thursday evenings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Pennsylvania to Colorado?

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 October 31, 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
4,241 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

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
8,992 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

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
11,030 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

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
694 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

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
3,123 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

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 129 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?

    Delta, United Airlines, and JetBlue can get you from Pennsylvania to Colorado in just under 4h 13m. Your travel time will be generally consistent. The distance between Pennsylvania and Colorado is about 1448 mi. Generally, flights for this route are nonstop.

  • 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 $89. However, be on the lookout for offers from United Airlines and Delta, 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, January is the cheapest month in which you can book a flight from Pennsylvania to Colorado (average of $82). Flying from Pennsylvania to Colorado in December is currently the most expensive (average of $142). 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 October 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$75Average$226FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$106Average$207FlexibilityNo cancel feeOn-time88%
JetBlueCheapest$130Average$330FlexibilityNo cancel feeOn-time62%
DeltaCheapest$134Average$394FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$177Average$275FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$184Average$455FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$191Average$529FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$458FlexibilityNo cancel feeOn-time63%

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