Cheap flight from Denver to Philadelphia from $133
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Flights from Denver to Philadelphia
Find cheap airlines flights from Denver to Philadelphia
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Cheap flight deals from Denver to Philadelphia
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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Cheapest nonstop
DEN 11:30 PM3h 40mNonstopPHL 5:10 AMDenver - Philadelphia | Wed, Jul 2 | Frontier Airlines
PHL 6:15 AM4h 13mNonstopDEN 8:28 AMPhiladelphia - Denver | Tue, Jul 8 | Frontier Airlines$133 $52074% OFF74% OFF$520 $133 -
DEN 11:30 PM3h 40mNonstopPHL 5:10 AMDenver - Philadelphia | Mon, Jun 23 | Frontier Airlines
PHL 6:15 AM4h 14mNonstopDEN 8:29 AMPhiladelphia - Denver | Mon, Jun 30 | Frontier Airlines$141 $52073% OFF73% OFF$520 $141
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Mon, Jul 14 | Frontier Airlines
PHL 6:15 AM4h 13mNonstopDEN 8:28 AMPhiladelphia - Denver | Sun, Jul 20 | Frontier Airlines$148 $52072% OFF72% OFF$520 $148
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DEN 11:30 PM3h 40mNonstopPHL 5:10 AMDenver - Philadelphia | Fri, Jun 27 | Frontier Airlines
PHL 1:02 PM4h 28mNonstopDEN 3:30 PMPhiladelphia - Denver | Fri, Jul 4 | Frontier Airlines$15770% OFF$520 $157
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Mon, Jul 21 | Frontier Airlines
PHL 6:15 AM4h 13mNonstopDEN 8:28 AMPhiladelphia - Denver | Thu, Jul 24 | Frontier Airlines$15870% OFF$520 $158
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Sat, Jul 12 | Frontier Airlines
PHL 6:15 AM4h 13mNonstopDEN 8:28 AMPhiladelphia - Denver | Thu, Jul 17 | Frontier Airlines$16668% OFF$520 $166
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Wed, Jul 9 | Frontier Airlines
PHL 6:15 AM4h 13mNonstopDEN 8:28 AMPhiladelphia - Denver | Tue, Jul 15 | Frontier Airlines$16768% OFF$520 $167
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DEN 9:01 AM3h 40mNonstopPHL 2:41 PMDenver - Philadelphia | Wed, Jul 2 | American Airlines
PHL 6:15 AM4h 13mNonstopDEN 8:28 AMPhiladelphia - Denver | Tue, Jul 8 | Frontier Airlines$16768% OFF$520 $167 -
DEN 12:59 AM8h 5m1 stopsPHL 11:04 AMDenver - Philadelphia | Sun, Aug 10 | Frontier Airlines
PHL 12:25 PM10h 52m1 stopsDEN 9:17 PMPhiladelphia - Denver | Wed, Aug 13 | Frontier Airlines$15570% OFF$520 $155
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DEN 11:30 PM3h 40mNonstopPHL 5:10 AMDenver - Philadelphia | Thu, Jun 19 | Frontier Airlines
PHL 6:00 AM27h 14m1 stopsDEN 7:14 AMPhiladelphia - Denver | Sun, Jun 22 | Frontier Airlines$41620% OFF$520 $416
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DEN 1:00 PM17h 25m1 stopsPHL Invalid DateDenver - Philadelphia | Fri, Jun 20 | Normal Airline
PHL 3:00 PM6hNonstopDEN 4:00 PMPhiladelphia - Denver | Sun, Jun 22 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
DEN 11:30 PM3h 40mNonstopPHL 5:10 AMDenver - Philadelphia | Tue, Jul 1 | Frontier Airlines$67 $21168% OFF68% OFF$211 $67
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DEN 11:30 PM3h 40mNonstopPHL 5:10 AMDenver - Philadelphia | Mon, Jun 23 | Frontier Airlines$70 $21167% OFF67% OFF$211 $70
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DEN 11:30 PM3h 40mNonstopPHL 5:10 AMDenver - Philadelphia | Mon, Jun 30 | Frontier Airlines$72 $21166% OFF66% OFF$211 $72
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Mon, Jul 14 | Frontier Airlines$7266% OFF$211 $72
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Sun, Jul 13 | Frontier Airlines$7963% OFF$211 $79
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Tue, Jul 15 | Frontier Airlines$9056% OFF$211 $90
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Sat, Jul 19 | Frontier Airlines$9456% OFF$211 $94
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DEN 11:30 PM3h 39mNonstopPHL 5:09 AMDenver - Philadelphia | Sat, Jul 12 | Frontier Airlines$9455% OFF$211 $94
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DEN 8:59 AM3h 39mNonstopPHL 2:38 PMDenver - Philadelphia | Tue, Jul 15 | American Airlines$9754% OFF$211 $97
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DEN 11:30 PM3h 40mNonstopPHL 5:10 AMDenver - Philadelphia | Fri, Jun 27 | Frontier Airlines$16920% OFF$211 $169
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DEN 1:00 PM17h 25m1 stopsPHL Invalid DateDenver - Philadelphia | Fri, Jun 20 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Info | Denver to Philadelphia
| Cheapest one-way flight price | $66 |
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| Cheapest round-trip ticket price | $132 |
| Off-season for travel | April |
| Peak season for travel | March |
| Flight distance | 2,500.26 km |
| Average flight time | 3 hours 38 minutes |
| Popular airline | Delta Air Lines |
When is the cheapest time to fly from Denver to Philadelphia?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from Denver (DEN) to Philadelphia (PHL) the cheapest?
Airlines adjust prices for flights from Denver to Philadelphia based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Denver (DEN) to Philadelphia (PHL) cost?
According to Trip.com's data, the lowest price is around $288. -
How long does it take to fly from Denver (DEN) to Philadelphia (PHL) and what is the distance?
It takes around 3 hours 38 minutes to fly from Denver (DEN) to Philadelphia (PHL). -
What are the most popular airlines that fly from Denver (DEN) to Philadelphia (PHL)?
Airlines with flights from Denver (DEN) to Philadelphia (PHL): American Airlines, Southwest Airlines, Volaris, United Airlines, Frontier Airlines, British Airways, Qatar Airways, Aer Lingus and Air Canada.
How to find a cheap flight from Denver to Philadelphia
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Denver to Philadelphia. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest Denver to Philadelphia ticket.
Tap "Date" in the flight search bar to browse the calendar and find airfare from Denver to Philadelphia for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is $67 for a one-way ticket on Tue, Jul 1.
Compare cheap Denver to Philadelphia flight deals from hundreds of airlines.
Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Denver to Philadelphia. The most affordable airline currently operating on this route is Frontier Airlines.
Set up a Price Alert to track fare drops.
Set up a Price Alert for your Denver to Philadelphia route to track ticket prices effortlessly—no need to check manually every day.
Don't miss out on cheap Denver to Philadelphia flight deals and promo codes.
Stay updated on the latest deals with Trip.com Deals and Promo Codes for cheap flights. Sign up for a free membership to unlock even more exclusive flight discounts.
Book early or wait unitl the last minute to fine the best fares.
It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.
Search for flights on the go.
For the best booking experience on the go, download Trip.com and search for cheap flights from Denver to Philadelphia to access exclusive deals just for you.
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