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$53+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 August 20, 2025.

Round-trip from

$120
(Cheapflightsfares)

One-way from

$53
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$285

Good round-trip deal

$154 or less

Good one-way deal

$92 or less
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. 4% potential increase in price ($16 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 August 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 August 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 8/317:00 amABE - DEN
Nonstop4h 01mAllegiant Air
Thu 9/410:35 amDEN - ABE
Nonstop3h 30mAllegiant Air
Deal found 8/18$120
This Priceline deal was found by Cheapflights users on 8/20. 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 9/510:56 pmLGA - DEN
Nonstop4h 08mFrontier
Fri 9/1212:04 amDEN - LGA
1 stop9h 57mFrontier
Deal found 8/20$136
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 9/1710:56 pmLGA - DEN
Nonstop4h 08mFrontier
Wed 9/244:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 8/19$137
This FlightHub deal was found by Cheapflights users on 8/19. 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.
Sat 9/66:30 amLGA - DEN
1 stop14h 32mFrontier
Sat 9/134:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 8/19$138
This CheapOair deal was found by Cheapflights users on 8/20. 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 11/143:30 pmJFK - DEN
Nonstop4h 26mFrontier
Mon 11/1712:16 amDEN - JFK
1 stop8h 13mFrontier
Deal found 8/20$138
This Mytrip deal was found by Cheapflights users on 8/19. 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.
Sat 9/2010:56 pmLGA - DEN
Nonstop4h 08mFrontier
Sat 9/2711:40 amDEN - LGA
1 stop22h 20mFrontier
Deal found 8/19$139
This Frontier deal was found by Cheapflights users on 8/20. 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 10/313:30 pmJFK - DEN
Nonstop4h 26mFrontier
Mon 11/38:39 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 8/20$139
This CheapOair deal was found by Cheapflights users on 8/20. 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 9/712:55 pmLGA - DEN
1 stop8h 12mFrontier
Sat 9/134:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 8/20$140
This CheapOair deal was found by Cheapflights users on 8/18. 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.
Tue 9/26:30 amLGA - DEN
1 stop28h 50mFrontier
Sat 9/64:14 pmDEN - LGA
Nonstop3h 57mFrontier
Deal found 8/18$141
This FlightHub deal was found by Cheapflights users on 8/20. 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 10/171:00 pmJFK - DEN
Nonstop4h 24mFrontier
Wed 10/226:10 amDEN - JFK
Nonstop3h 51mFrontier
Deal found 8/20$141
This Booking.com deal was found by Cheapflights users on 8/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:00 amABE - DEN
Nonstop3h 45mAllegiant Air
Sun 9/710:35 amDEN - ABE
Nonstop3h 30mAllegiant Air
Deal found 8/19$142
This FlightHub deal was found by Cheapflights users on 8/19. 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.
Thu 9/1110:56 pmLGA - DEN
Nonstop4h 08mFrontier
Thu 9/186:10 amDEN - LGA
1 stop12h 49mFrontier
Deal found 8/19$142

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 August 20, 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

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Sun 8/31

7:00 am-9:01 am

Nonstop4h 01m

Denver Intl

Thu 9/4

10:35 am-4:05 pm

Nonstop3h 30m

$120

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Wed 9/10

10:56 pm-1:04 am

Nonstop4h 08m

Denver Intl

Sat 9/13

12:59 am-10:33 am

1 stop7h 34m

$138

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Thu 9/4

10:56 pm-1:04 am

Nonstop4h 08m

Denver Intl

Fri 9/5

12:59 am-10:33 am

1 stop7h 34m

$138

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Fri 9/26

10:56 pm-1:04 am

Nonstop4h 08m

Denver Intl

Sat 10/4

12:59 am-10:33 am

1 stop7h 34m

$138

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Fri 9/12

10:56 pm-1:04 am

Nonstop4h 08m

Denver Intl

Sat 9/13

11:40 am-11:57 pm

1 stop10h 17m

$138

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 9/6

11:30 am-7:02 pm

1 stop9h 32m

Denver Intl

Mon 9/8

4:14 pm-10:11 pm

Nonstop3h 57m

$138

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Fri 9/19

10:56 pm-1:04 am

Nonstop4h 08m

Denver Intl

Wed 9/24

4:44 pm-10:33 am

1 stop15h 49m

$138

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Thu 10/16

12:55 pm-7:26 pm

1 stop8h 31m

Denver Intl

Tue 10/21

4:08 pm-10:00 pm

Nonstop3h 52m

$139

AllentownDenver

ABE - DEN

ABEDEN

Allentown-Bethlehem

Thu 9/4

8:00 am-9:45 am

Nonstop3h 45m

Denver Intl

Sun 9/7

10:35 am-4:05 pm

Nonstop3h 30m

$142

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 9/20

10:56 pm-1:04 am

Nonstop4h 08m

Denver Intl

Fri 9/26

12:04 am-12:01 pm

1 stop9h 57m

$142

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

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, October is the cheapest month in which you can book a flight from Pennsylvania to Denver (average of $197). Flying from Pennsylvania to Denver 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 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 August 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pennsylvania to Denver as you normally would.

Weekly flight availability from Pennsylvania to Denver

Explore weekly flight availability from Pennsylvania to Denver. 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 August 20, 2025.

The most flights from USPA to DEN are scheduled on a Tuesday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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, 121 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 3h 55m. Allegiant Air provides one of the quickest options available for as low as $177. The distance between Pennsylvania and Denver is about 1448 mi. All flights are typically nonstop.

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

    $53 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on Frontier and United Airlines, with prices starting from $73 and $89, respectively.

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

    Most travelers choose New York John F Kennedy Intl - Denver Intl, New York LaGuardia - Denver Intl or Newark - 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: Qatar Airways (81%), United Airlines (80%), Air Canada (77%).

  • What are the cheapest flights from Pennsylvania to Denver?

    Looking for the cheapest flight from Pennsylvania to Denver? While on average our users pay $743, our data indicates the cheapest price to be $105. The most popular route (New York John F Kennedy Intl - Denver Intl), is priced around $151.

  • 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, October is the cheapest month in which you can book a flight from Pennsylvania to Denver (average of $197). Flying from Pennsylvania to Denver 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

Traveling to a place near Denver?

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

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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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John F Kennedy Intl to Denver flights
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Des Moines to Denver flights

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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$44Average$214FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$106Average$207FlexibilityNo cancel feeOn-time88%
DeltaCheapest$134Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$168Average$378FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$193Average$378FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$194Average$441FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$207Average$337FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$251Average$275FlexibilityNo cancel feeOn-time83%

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