Philadelphia to Denver flights
The cheapest round trip we found from Philadelphia to Denver is $211 (Jan 7 – 12, 2027, 1 stop), 24% below the usual $278.
PHL to DEN · Round trip · Economy · Prices per person in USD · Price found (1 day ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | No fares found yet |
| December 2026 | No fares found yet |
| January 2027 | $211 (cheapest month) |
| February 2027 | $303 |
Cheapest dates in the next 4 months
Round trip, per person-
Jan 7 – 12, 2027 5 nights · leave Thu$211 −24% vs usual$211 −24% vs usual Book
Frontier Airlines 1 stop · 7h 11m -
Jan 6 – 13, 2027 7 nights · leave Wed$240 −14% vs usual$240 −14% vs usual Book
Frontier Airlines 2 stops · 7h 40m
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Jan 8 – 17, 2027 9 nights · leave Fri$288$288 Book
Frontier Airlines 2 stops · 6h 20m
-
Jan 16 – 24, 2027 8 nights · leave Sat$292 +5% vs usual$292 +5% vs usual Book
Frontier Airlines 1 stop · 6h 05m
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Jan 17 – 24, 2027 7 nights · leave Sun$295 +6% vs usual$295 +6% vs usual Book
Frontier Airlines 2 stops · 7h 45m
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Jan 9 – 17, 2027 8 nights · leave Sat$300 +8% vs usual$300 +8% vs usual Book
Frontier Airlines 2 stops · 6h 17m
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Jan 15 – 24, 2027 9 nights · leave Fri$309 +11% vs usual$309 +11% vs usual Book
Frontier Airlines 1 stop · 7h 47m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Plan the rest of your trip
Denver · Jan 7 – 12, 2027- Car rental Economybookings · compare rental companies (opens Economybookings in a new tab)
- Things to do in Denver Klook · tours and tickets (opens Klook in a new tab)
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Good to know
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Flights to Denver from other cities
All flights to Denver Flying the other way? Denver to Philadelphia from $243
Philadelphia to Denver: questions
How much does a flight from Philadelphia to Denver cost?
The cheapest round trip we have found right now is $211, leaving January 7 and returning January 12. The usual price on this route is about $278, so this fare is 24% less. Prices are per person, economy, in USD.
Which airports do Philadelphia to Denver flights use?
Philadelphia airports include Philadelphia International (PHL) and Trenton-Mercer (TTN). Denver airports include Denver International (DEN) and Centennial (APA). The prices on this page cover every airport in both cities (PHL and DEN are the city codes).
About this route
We track round-trip economy fares from Philadelphia (United States) to Denver (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $211, departing January 7 and returning January 12, about 24% below the usual $278. Right now we're following 7 upcoming date combinations on this route. The cheapest month to fly in our data is January, from $211. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.