Denver to Philadelphia flights
The cheapest round trip we found from Denver to Philadelphia is $243 (Jan 7 – 12, 2027, 1 stop).
DEN to PHL · Round trip · Economy · Prices per person in USD · Price found (40 minutes ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $482 |
| December 2026 | No fares found yet |
| January 2027 | $243 (cheapest month) |
Cheapest dates in the next 4 months
Round trip, per person-
Jan 7 – 12, 2027 5 nights · leave Thu$243$243 Book
Frontier Airlines 1 stop · 5h 10m -
Nov 24 – 28 4 nights · leave Tue$482$482 Book
Frontier Airlines 1 stop · 6h 39m
-
Nov 24 – 29 5 nights · leave Tue$525$525 Book
Frontier Airlines 1 stop · 6h 38m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in Philadelphia
One Go City pass for Eastern State Penitentiary, Longwood Gardens, The Franklin Institute and more
- All-Inclusive Pass Unlimited Visit as many attractions as you like for 1–6 days from $59 See pass
- Explorer Pass Pick 3–7 of 33 attractions from $59 See pass
Go City prices checked Oct 23, 2026; the final price is on Go City. Partner links: we may earn a commission if you book, at no extra cost to you.
Plan the rest of your trip
Philadelphia · Jan 7 – 12, 2027Partner links: we may earn a commission if you book, at no extra cost to you.
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Flights to Philadelphia from other cities
All flights to Philadelphia Flying the other way? Philadelphia to Denver from $211
Denver to Philadelphia: questions
How much does a flight from Denver to Philadelphia cost?
The cheapest round trip we have found right now is $243, leaving January 7 and returning January 12. Prices are per person, economy, in USD.
Which airports do Denver to Philadelphia flights use?
Denver airports include Denver International (DEN) and Centennial (APA). Philadelphia airports include Philadelphia International (PHL) and Trenton-Mercer (TTN). The prices on this page cover every airport in both cities (DEN and PHL are the city codes).
About this route
We track round-trip economy fares from Denver (United States) to Philadelphia (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $243, departing January 7 and returning January 12. The cheapest month to fly in our data is January, from $243. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.