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$69+ Cheap flights from Pennsylvania to Denver (DEN)

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 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Pennsylvania to Denver

Keep the following information in mind while searching for Pennsylvania to Denver flight deals. Data was last updated October 30, 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.
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Provider most trusted by Cheapflights users for Philadelphia-Denver Intl flights.
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From Pennsylvania to Denver Intl
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One-way flight from Pennsylvania to Denver Intl
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Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Pennsylvania to Denver Intl.
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Price to beat on a one-way flight from Pennsylvania to Denver Intl.
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Find flight deals from Pennsylvania to Denver

Cheapest flights from Pennsylvania to Denver
Explore the most affordable flight options available from Pennsylvania to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 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 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.
Thu 11/138:36 pmIAD - DEN
1 stop13h 39mFrontier
Sat 11/1512:25 pmDEN - IAD
1 stop9h 30mFrontier
Deal found 10/30$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
Sun 12/1411:38 amDEN - DCA
Nonstop3h 21mFrontier
Deal found 10/29$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.
Sat 12/138:00 amDCA - DEN
Nonstop4h 13mFrontier
Sat 12/134:38 pmDEN - DCA
Nonstop3h 21mFrontier
Deal found 10/29$138
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:00 amJFK - DEN
1 stop13h 38mFrontier
Mon 12/812:59 amDEN - JFK
1 stop9h 01mFrontier
Deal found 10/28$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 Priceline 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 Priceline 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 10/29$140
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 12/59:26 amIAD - DEN
1 stop8h 17mFrontier
Sun 12/77:00 amDEN - IAD
1 stop23h 31mFrontier
Deal found 10/30$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.
Fri 11/74:00 pmJFK - DEN
Nonstop4h 26mFrontier
Wed 11/129:09 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 10/29$141

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania to Denver 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 30, 2025.
Use the filters below to find and compare flights from Pennsylvania to Denver that are best for you.

Fly from

Pennsylvania

Fly to

Denver

Route

Depart

Return

Price

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sun 12/7

2:00 pm-4:15 pm

Nonstop4h 15m

Denver Intl

Wed 12/10

11:38 am-4:59 pm

Nonstop3h 21m

$160

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sun 12/7

5:26 pm-9:02 am

1 stop17h 36m

Denver Intl

Tue 12/9

12:59 am-2:29 pm

1 stop11h 30m

$181

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

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Wed 12/3

8:00 am-10:22 am

Nonstop4h 22m

Denver Intl

Sat 12/6

10:10 am-3:43 pm

Nonstop3h 33m

$194

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 12/6

9:20 pm-8:24 am

1 stop13h 04m

Denver Intl

Tue 12/9

12:59 am-2:29 pm

1 stop11h 30m

$196

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sun 12/7

5:05 am-7:00 am

Nonstop3h 55m

Denver Intl

Wed 12/10

10:30 am-3:45 pm

Nonstop3h 15m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 12/6

10:10 pm-12:15 am

Nonstop4h 05m

Denver Intl

Sun 12/7

11:59 pm-5:16 am

Nonstop3h 17m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 12/3

10:10 pm-12:15 am

Nonstop4h 05m

Denver Intl

Sun 12/7

11:59 pm-5:16 am

Nonstop3h 17m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 1/17

4:11 pm-6:24 pm

Nonstop4h 13m

Denver Intl

Fri 1/23

9:50 am-3:13 pm

Nonstop3h 23m

$197

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Sat 1/10

8:00 am-10:45 am

Nonstop4h 45m

Denver Intl

Mon 1/12

11:35 am-5:21 pm

Nonstop3h 46m

$207

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 Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

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

Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Denver (average of $82). Flying from Pennsylvania to Denver 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 DEN?

Find hourly flight availability from Pennsylvania to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

One of the essential ways to save on airfare from Pennsylvania to Denver is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 10% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Pennsylvania to Denver. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Pennsylvania to Denver flight should consider departing on Tuesday 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.

Related info for your journey

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

  • What airport do you fly into for flights to Denver from Pennsylvania?

    If you book a flight to Denver from Pennsylvania, you will be flying to Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver.

  • How popular is this Pennsylvania to Denver flight route?

    Within the past month, 129 users have taken a look at flights from Pennsylvania to Denver Intl.

  • How long is the flight from Pennsylvania to Denver?

    A quick flight from Pennsylvania to Denver can take about 4h 15m. Frontier provides one of the quickest options available for as low as $160. The distance between Pennsylvania and Denver is about 1471 mi. This flight may include one or multiple stops.

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

    $89 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and JetBlue, with prices starting from $89 and $93, respectively.

  • What are the most popular routes from Pennsylvania to Denver?

    Most travelers choose New York John F Kennedy Intl - Denver Intl, Newark - Denver Intl or New York LaGuardia - Denver Intl when deciding on the best route from Pennsylvania to Denver.

  • What are the most reliable airlines from Pennsylvania to Denver?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Pennsylvania to Denver on time: Air Canada (90%), Aer Lingus (88%), United Airlines (82%).

  • What are the cheapest flights from Pennsylvania to Denver?

    Looking for the cheapest flight from Pennsylvania to Denver? While on average our users pay $690, our data indicates the cheapest price to be $79. The most popular route (New York John F Kennedy Intl - Denver Intl), is priced around $127.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Denver (average of $82). Flying from Pennsylvania to Denver 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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Alternative routes for Pennsylvania to Denver

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 Denver

Discover the top 8 airlines that operate flights from Pennsylvania to Denver. 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$75Average$226FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$106Average$207FlexibilityNo cancel feeOn-time88%
JetBlueCheapest$130Average$330FlexibilityNo cancel feeOn-time62%
DeltaCheapest$134Average$376FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$177Average$275FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$184Average$391FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$191Average$447FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$386FlexibilityNo cancel feeOn-time63%

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