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$87+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap 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 June 9, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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 9/78:00 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Fri 9/119:36 am
DEN
-
ABE
Nonstop3h 32m
Allegiant Air
Deal found 6/4$138
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 9/287:30 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Fri 10/210:14 am
DEN
-
ABE
Nonstop3h 28m
Allegiant Air
Deal found 6/6$144
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 10/267:30 am
ABE
-
DEN
Nonstop3h 54m
Allegiant Air
Fri 10/3010:14 am
DEN
-
ABE
Nonstop3h 28m
Allegiant Air
Deal found 6/6$145
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 10/267:30 am
ABE
-
DEN
Nonstop3h 54m
Allegiant Air
Mon 11/210:14 am
DEN
-
ABE
Nonstop3h 28m
Allegiant Air
Deal found 6/6$160
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 9/47:30 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Fri 9/119:36 am
DEN
-
ABE
Nonstop3h 32m
Allegiant Air
Deal found 6/5$163
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 9/78:00 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Mon 9/1410:06 am
DEN
-
ABE
Nonstop3h 32m
Allegiant Air
Deal found 6/6$169
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/247:00 am
ABE
-
DEN
Nonstop3h 52m
Allegiant Air
Mon 8/3110:12 am
DEN
-
ABE
Nonstop3h 29m
Allegiant Air
Deal found 6/5$173
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/247:00 am
ABE
-
DEN
Nonstop3h 52m
Allegiant Air
Fri 8/289:42 am
DEN
-
ABE
Nonstop3h 29m
Allegiant Air
Deal found 6/4$179
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 9/47:30 am
ABE
-
DEN
Nonstop3h 46m
Allegiant Air
Mon 9/1410:06 am
DEN
-
ABE
Nonstop3h 32m
Allegiant Air
Deal found 6/5$193
This Expedia deal was found by Cheapflights users on 6/6. 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.
Wed 7/2212:44 pm
PHL
-
DEN
Nonstop4h 14m
Multiple Airlines
Tue 7/2811:37 pm
DEN
-
PHL
1 stop6h 53m
Multiple Airlines
Deal found 6/6$197
This CheapOair deal was found by Cheapflights users on 6/4. 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 8/258:28 am
PHL
-
DEN
1 stop6h 47m
Multiple Airlines
Sat 8/296:05 am
DEN
-
PHL
Nonstop3h 42m
Multiple Airlines
Deal found 6/4$199
This Cheapflightsfares deal was found by Cheapflights users on 6/8. 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 8/112:44 pm
PHL
-
DEN
Nonstop4h 14m
Frontier
Sat 8/86:05 am
DEN
-
PHL
Nonstop3h 44m
Frontier
Deal found 6/8$200

Find flight deals from Pennsylvania to Denver

Keep the following information in mind while searching for Pennsylvania to Denver flight deals. Data was last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$138
(Cheapflightsfares)

One-way from

$87
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$350

Good round-trip deal

$214 or less

Good one-way deal

$93 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 Denver Intl
Search Deals
One-way flight from Pennsylvania to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Pennsylvania to Denver Intl.
Search Deals
Price to beat on a one-way flight from Pennsylvania to Denver Intl.
Search Deals

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 June 9, 2026.
Use the filters below to find and compare flights from Pennsylvania to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Tue 8/18

8:20 am-10:47 am

Nonstop4h 27m

Denver Intl

Sat 8/22

6:40 am-12:32 pm

Nonstop3h 52m

$277

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Wed 7/1

6:29 pm-9:02 pm

Nonstop4h 33m

Denver Intl

Sat 7/4

8:03 am-1:57 pm

Nonstop3h 54m

$277

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Sat 9/5

8:30 am-10:45 am

Nonstop4h 15m

Denver Intl

Tue 9/8

5:35 pm-11:38 pm

Nonstop4h 03m

$277

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 8/20

6:20 am-11:00 am

2 stops6h 40m

Denver Intl

Tue 8/25

11:15 am-8:55 pm

2 stops7h 40m

$292

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Wed 7/1

7:50 pm-10:45 pm

Nonstop4h 55m

Denver Intl

Wed 7/8

6:35 am-12:27 pm

Nonstop3h 52m

$297

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Tue 9/1

7:50 pm-10:45 pm

Nonstop4h 55m

Denver Intl

Sat 9/5

6:40 am-12:32 pm

Nonstop3h 52m

$297

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Tue 7/21

6:50 pm-9:35 pm

Nonstop4h 45m

Denver Intl

Wed 8/5

5:20 pm-11:13 pm

Nonstop3h 53m

$297

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Wed 11/18

6:25 pm-12:23 am

1 stop7h 58m

Denver Intl

Sat 11/21

3:10 pm-11:38 pm

1 stop6h 28m

$303

HarrisburgDenver

MDT - DEN

MDTDEN

Harrisburg

Tue 8/4

12:22 pm-5:23 pm

1 stop7h 01m

Denver Intl

Tue 8/11

6:00 am-2:13 pm

1 stop6h 13m

$303

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Mon 8/17

9:05 pm-11:15 pm

Nonstop4h 10m

Denver Intl

Sat 8/22

11:10 am-10:20 pm

1 stop9h 10m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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, August is the cheapest month in which you can book a flight from Pennsylvania to Denver (average of $256). Flying from Pennsylvania to Denver in December is currently the most expensive (average of $679). 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 June 9, 2026.

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 21% on airfare.

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 June 9, 2026.

The most flights from USPA to DEN are scheduled on a Monday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

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

How far ahead should I book a flight from Pennsylvania to Denver?

The best time to book flights from Pennsylvania to Denver is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 June 8, 2026.

Travelers seeking maximum savings on their Pennsylvania to Denver flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday 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, 159 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 46m. Allegiant Air provides one of the quickest options available for as low as $138. The distance between Pennsylvania and Denver is about 1534 mi. All flights are typically nonstop.

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

    $60 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 JetBlue, with prices starting from $60 and $79, respectively.

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

    Most travelers choose Newark - Denver Intl, Washington, D.C. Dulles Intl - 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: Aer Lingus (100%), Air Canada (89%), British Airways (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 $839, our data indicates the cheapest price to be $128. The most popular route (Newark - Denver Intl), is priced around $203.

  • 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, August is the cheapest month in which you can book a flight from Pennsylvania to Denver (average of $256). Flying from Pennsylvania to Denver in December is currently the most expensive (average of $679). 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
Thornton
Black Hawk
Westminster
Lakewood
Broomfield
Centennial
Golden
Greeley
Fort Morgan
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
Evergreen

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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.
Dallas/Fort Worth to Denver flights
Newark to Denver flights
John F Kennedy Intl to Denver flights
Seattle to Denver flights
LaGuardia to Denver flights
Dulles Intl to Denver flights
O'Hare Intl to Denver flights
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Hobby to Denver flights
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Los Angeles to Denver flights
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Grand Rapids to Denver flights
San Jose to Denver flights
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Portland to Denver flights
Fort Lauderdale to Denver flights
Nashville to Denver flights
St. Louis to Denver flights
Burbank to Denver flights
Sacramento to Denver flights
Columbus to Denver flights
San Diego to Denver flights
Love Field to Denver flights
Kansas City to Denver flights
Pittsburgh to Denver flights
Midway to Denver flights
Richmond to Denver flights
Jacksonville to Denver flights
Hartford to Denver flights
Salt Lake City to Denver flights
Madison to Denver flights
New Orleans to Denver flights

Top 7 airlines flying from Pennsylvania to Denver

Discover the top 7 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$218FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$125Average$243FlexibilityNo cancel feeOn-time88%
JetBlueCheapest$145Average$354FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$148Average$435FlexibilityNo cancel feeOn-time69%
DeltaCheapest$169Average$362FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$184Average$430FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$199Average$430FlexibilityNo cancel feeOn-time63%

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