S$165 Cheap Flights from Denver to Philadelphia

View S$165 flight on Wed, 27 Aug, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Philadelphia Intl. Airport (PHL)

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Cheap Flights from Denver to Philadelphia (DEN-PHL)

Prices were available within the past 7 days and start at S$165 for one-way flights and S$329 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 27 Aug - Wed, 3 Sep
DEN
Denver
PHL
Philadelphia
S$329 Return, found 5 days ago
S$329
Return
found 5 days ago
Select Delta flight, departing Wed, 27 Aug from Denver to Philadelphia, returning Wed, 3 Sep, priced at S$329 found 5 days ago
Delta
Sun, 31 Aug - Sun, 7 Sep
DEN
Denver
PHL
Philadelphia
S$330 Return, found 1 day ago
S$330
Return
found 1 day ago
Select Delta flight, departing Sun, 31 Aug from Denver to Philadelphia, returning Sun, 7 Sep, priced at S$330 found 1 day ago
Delta
Wed, 13 Aug - Sun, 17 Aug
DEN
Denver
PHL
Philadelphia
S$342 Return, found 4 days ago
S$342
Return
found 4 days ago
Select Delta flight, departing Wed, 13 Aug from Denver to Philadelphia, returning Sun, 17 Aug, priced at S$342 found 4 days ago
United
Wed, 13 Aug - Sun, 17 Aug
DEN
Denver
PHL
Philadelphia
S$349 Return, found 4 days ago
S$349
Return
found 4 days ago
Select United flight, departing Wed, 13 Aug from Denver to Philadelphia, returning Sun, 17 Aug, priced at S$349 found 4 days ago
American Airlines
Wed, 13 Aug - Sun, 17 Aug
DEN
Denver
PHL
Philadelphia
S$356 Return, found 4 days ago
S$356
Return
found 4 days ago
Select American Airlines flight, departing Wed, 13 Aug from Denver to Philadelphia, returning Sun, 17 Aug, priced at S$356 found 4 days ago
United
Wed, 27 Aug - Wed, 3 Sep
DEN
Denver
PHL
Philadelphia
S$356 Return, found 5 days ago
S$356
Return
found 5 days ago
Select United flight, departing Wed, 27 Aug from Denver to Philadelphia, returning Wed, 3 Sep, priced at S$356 found 5 days ago
American Airlines
Wed, 27 Aug - Wed, 3 Sep
DEN
Denver
PHL
Philadelphia
S$362 Return, found 5 days ago
S$362
Return
found 5 days ago
Select American Airlines flight, departing Wed, 27 Aug from Denver to Philadelphia, returning Wed, 3 Sep, priced at S$362 found 5 days ago
American Airlines
Wed, 27 Aug - Wed, 3 Sep
DEN
Denver
PHL
Philadelphia
S$369 Return, found 5 days ago
S$369
Return
found 5 days ago
Select American Airlines flight, departing Wed, 27 Aug from Denver to Philadelphia, returning Wed, 3 Sep, priced at S$369 found 5 days ago
United
Sun, 31 Aug - Sun, 7 Sep
DEN
Denver
PHL
Philadelphia
S$370 Return, found 1 day ago
S$370
Return
found 1 day ago
Select United flight, departing Sun, 31 Aug from Denver to Philadelphia, returning Sun, 7 Sep, priced at S$370 found 1 day ago
Delta
Sun, 31 Aug - Sun, 7 Sep
DEN
Denver
PHL
Philadelphia
S$376 Return, found 1 day ago
S$376
Return
found 1 day ago
Select Delta flight, departing Sun, 31 Aug from Denver to Philadelphia, returning Sun, 7 Sep, priced at S$376 found 1 day ago

Find the cheapest month to fly from Denver (DEN) to Philadelphia (PHL)

March is typically the cheapest month to fly

From S$115 - S$605 per traveller.

Graph displaying average flight prices per month

Denver to Philadelphia route information
Origin airport
Denver Intl.
Destination airport
Philadelphia Intl.
Return price
S$329
Distance
2485 km
Average flight time
5 hours 37 mins

Flights from Denver to Philadelphia

There are several airlines that operate frequent flights from Denver (DEN) to Philadelphia (PHL) including

The earliest flight leaves Denver Intl. Airport at 00:01 and arrives at Philadelphia Intl. Airport at 00:05. The last flight of the day departs Denver at 23:59 and arrives at Philadelphia at 23:50.

The flight distance from Denver to Philadelphia is about 2513 km, the shortest flight is 03 hours 20 minutes with .

Expedia lets you search across the largest number of airlines and Philadelphia flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Denver Philadelphia flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Denver to Philadelphia trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Philadelphia flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Denver to Philadelphia with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from DEN to Philadelphia Intl. Airport (PHL)?
The lowest price advertised for a round-trip flight between Denver Intl. Airport (DEN) and PHL is S$329. But you better get moving. This price is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DIA airport to Philadelphia Airport?
Each airline has its own set of terms and conditions. If you decide to cancel your getaway, head to our Customer Service Portal.
How do I find cheap flights from Denver Intl. Airport (DEN) to Philadelphia Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Denver Intl. Airport (DEN) to Philadelphia Intl. Airport (PHL) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from DIA airport to PHL?
Expect to be cruising at altitude for a while, as the flight distance between Denver Airport and PHL is 2,500 kilometres. Create a playlist of your favourite podcasts before you leave home to keep yourself entertained during the flight.
Which airlines fly direct from DEN to Philadelphia Airport?
Getting from Denver Airport to Philadelphia Intl. Airport (PHL) is easy when you have a good range of airlines to select from. These are a few of the best:

  • United Airlines - (UA) with 60 monthly flights
  • Frontier Airlines - (F9) with 43 monthly flights
  • American Airlines - (AA) with 39 monthly flights
  • Southwest Airlines - (WN) with 30 monthly flights

Are Denver Airport to Philadelphia Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Denver Intl. Airport (DEN) to PHL can be hit-or-miss. It is possible to score a bargain, but then again, you could miss out altogether! If you'd prefer to start planning ahead of time, Expedia compares flight deals up to a year in advance. Just remember that not all airlines list their prices so far in advance. Our advice? Check back often as prices are updated regularly.

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