HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pennsylvania to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 3, 2025.

Round-trip from

$106
(Booking.com)

One-way from

$53
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$285

Good round-trip deal

$158 or less

Good one-way deal

$79 or less
From Pennsylvania to Denver Intl
Search Deals
One-way flight from Pennsylvania to Denver Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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

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 July 3, 2025.

This Booking.com deal was found by Cheapflights users on 7/3. 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.
Sun 8/247:00 amABE - DEN
Nonstop4h 01mAllegiant Air
Thu 8/289:51 amDEN - ABE
Nonstop3h 22mAllegiant Air
Deal found 7/3$106
This Frontier deal was found by Cheapflights users on 7/3. 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 7/2510:55 pmLGA - DEN
Nonstop4h 20mFrontier
Wed 7/304:14 pmDEN - LGA
Nonstop3h 55mFrontier
Deal found 7/3$169
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 8/306:00 amJFK - DEN
1 stop10h 18mFrontier
Fri 9/1212:59 amDEN - JFK
1 stop9h 03mFrontier
Deal found 7/2$170
This Priceline deal was found by Cheapflights users on 7/2. 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.
Thu 9/2512:43 pmPHL - DEN
1 stop12h 30mFrontier
Sun 9/287:15 pmDEN - PHL
Nonstop3h 42mFrontier
Deal found 7/2$177
This Frontier deal was found by Cheapflights users on 7/3. 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 8/217:00 amDCA - DEN
Nonstop3h 56mFrontier
Fri 8/2211:27 amDEN - DCA
Nonstop3h 32mFrontier
Deal found 7/3$179
This FlightHub deal was found by Cheapflights users on 7/3. 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 8/228:19 pmIAD - DEN
1 stop14h 17mFrontier
Tue 8/2612:53 pmDEN - IAD
1 stop6h 46mFrontier
Deal found 7/3$180
This Southwest deal was found by Cheapflights users on 7/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:30 pmIAD - DEN
1 stop8h 25mSouthwest
Tue 9/304:45 pmDEN - IAD
Nonstop3h 20mSouthwest
Deal found 7/2$187
This Priceline deal was found by Cheapflights users on 7/2. 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 8/15:40 pmPIT - DEN
Nonstop3h 33mFrontier
Fri 8/88:44 amDEN - PIT
1 stop8h 04mFrontier
Deal found 7/2$190
This American Airlines deal was found by Cheapflights users on 7/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/275:00 amDCA - DEN
1 stop6h 53mAmerican Airlines
Sat 9/2712:25 pmDEN - DCA
1 stop7h 35mAmerican Airlines
Deal found 7/2$191
This Trip.com deal was found by Cheapflights users on 7/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/164:17 pmDCA - DEN
Nonstop4h 14mMultiple Airlines
Sat 8/236:45 amDEN - DCA
Nonstop3h 26mMultiple Airlines
Deal found 7/2$192
This United Airlines deal was found by Cheapflights users on 7/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2810:25 amIAD - DEN
Nonstop3h 44mUnited Airlines
Sun 8/318:00 amDEN - IAD
Nonstop3h 26mUnited Airlines
Deal found 7/3$195
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/44:30 pmPIT - DEN
Nonstop3h 32mUnited Airlines
Thu 8/145:59 pmDEN - PIT
Nonstop3h 07mUnited Airlines
Deal found 7/2$197

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 July 3, 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 8/24

7:00 am-9:01 am

Nonstop4h 01m

Denver Intl

Thu 8/28

9:51 am-3:13 pm

Nonstop3h 22m

$106

New YorkDenver

LGA - DEN

LGADEN

New York LaGuardia

Fri 7/25

10:55 pm-1:15 am

Nonstop4h 20m

Denver Intl

Wed 7/30

4:14 pm-10:09 pm

Nonstop3h 55m

$169

New YorkDenver

JFK - DEN

JFKDEN

New York John F Kennedy Intl

Sat 8/30

6:00 am-2:18 pm

1 stop10h 18m

Denver Intl

Fri 9/12

12:59 am-12:02 pm

1 stop9h 03m

$170

PhiladelphiaDenver

PHL - DEN

PHLDEN

Philadelphia

Thu 9/25

6:45 am-8:57 am

Nonstop4h 12m

Denver Intl

Wed 10/1

12:59 am-10:54 am

1 stop7h 55m

$177

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Thu 8/21

7:00 am-8:56 am

Nonstop3h 56m

Denver Intl

Fri 8/22

11:27 am-4:59 pm

Nonstop3h 32m

$179

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Fri 8/22

8:19 pm-8:36 am

1 stop14h 17m

Denver Intl

Tue 8/26

12:53 pm-9:39 pm

1 stop6h 46m

$180

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Thu 9/25

4:30 pm-10:55 pm

1 stop8h 25m

Denver Intl

Sat 9/27

5:30 pm-10:50 pm

Nonstop3h 20m

$187

PittsburghDenver

PIT - DEN

PITDEN

Pittsburgh

Fri 8/1

5:40 pm-7:13 pm

Nonstop3h 33m

Denver Intl

Fri 8/8

8:44 am-6:48 pm

1 stop8h 04m

$190

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 9/27

5:00 am-9:53 am

1 stop6h 53m

Denver Intl

Sat 9/27

12:25 pm-10:00 pm

1 stop7h 35m

$191

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 8/16

4:17 pm-6:31 pm

Nonstop4h 14m

Denver Intl

Sat 8/23

6:45 am-12:11 pm

Nonstop3h 26m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 60 results
1
2
3
...
6

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 July 3, 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 July 3, 2025.

The most flights from USPA to DEN are scheduled on a Thursday (17 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated July 3, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Pennsylvania to Denver by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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, 140 users have taken a look at flights from Pennsylvania to Denver Intl.

  • 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 Southwest, with prices starting from $66 and $99, 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: Air Canada (78%), United Airlines (76%), American Airlines (68%).

  • What are the cheapest flights from Pennsylvania to Denver?

    Looking for the cheapest flight from Pennsylvania to Denver? While on average our users pay $998, our data indicates the cheapest price to be $118. The most popular route (New York John F Kennedy Intl - Denver Intl), is priced around $167.

  • 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 Pennsylvania?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
John F Kennedy Intl to Denver flights
LaGuardia to Denver flights
O'Hare Intl to Denver flights
Los Angeles to Denver flights
Newark to Denver flights
Hobby to Denver flights
Atlanta to Denver flights
Philadelphia to Denver flights
Seattle to Denver flights
Baltimore to Denver flights
Minneapolis to Denver flights
George Bush Intcntl to Denver flights
Raleigh to Denver flights
Ontario to Denver flights
San Francisco to Denver flights
Detroit to Denver flights
Austin to Denver flights
Boston to Denver flights
Charlotte to Denver flights
Orlando to Denver flights
Dulles Intl to Denver flights
Santa Ana to Denver flights
Sky Harbor Intl to Denver flights
Grand Rapids to Denver flights
Tampa to Denver flights
Reagan-National to Denver flights
Miami to Denver flights
San Diego to Denver flights
Midway to Denver flights
Cleveland to Denver flights
Portland to Denver flights
Cincinnati to Denver flights
Indianapolis to Denver flights
Columbus to Denver flights
Madison to Denver flights
Norfolk to Denver flights
Love Field to Denver flights
Pittsburgh to Denver flights
New Orleans to Denver flights
Fort Lauderdale to Denver flights
Nashville to Denver flights
Richmond to Denver flights
Des Moines to Denver flights
Hartford to Denver flights
St. Louis to Denver flights
Kansas City to Denver flights
Milwaukee to Denver flights
San Antonio to Denver flights
Fort Myers 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$44Average$189FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$82Average$275FlexibilityNo cancel feeOn-time83%
Allegiant AirCheapest$106Average$209FlexibilityNo cancel feeOn-time88%
DeltaCheapest$134Average$350FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$168Average$376FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$187Average$427FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$193Average$385FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$207Average$343FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.