What is the cheapest month to fly from Denver to Philadelphia?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Denver (DEN) to Philadelphia (PHL), with fares starting from $122.

What is the lowest current fare from DEN to PHL?

The lowest currently-listed fare from Denver (DEN) to Philadelphia (PHL) is $122 on 2026-05-29.

How long is the flight from Denver to Philadelphia?

Direct flights from DEN to PHL cover approximately 2,500 km (1,553 miles), with an estimated flight time of 2h 56m. Operating airlines: AA, F9, UA, WN.

Cheap flights from Denver to Philadelphia

Cheapest current fares: $122 in May 2026, 2,500 km direct flight in ~2h 56m.

Last updated May 26, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Denver (DEN) to Philadelphia (PHL). Refreshed daily.

Denver (DEN) → Philadelphia (PHL)

May 2026 $122
June 2026 $128

Frequently asked questions

What is the cheapest month to fly from Denver to Philadelphia?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Denver (DEN) to Philadelphia (PHL), with fares starting from $122.
What is the lowest current fare from DEN to PHL?

The lowest currently-listed fare from Denver (DEN) to Philadelphia (PHL) is $122 on 2026-05-29.
How long is the flight from Denver to Philadelphia?

Direct flights from DEN to PHL cover approximately 2,500 km (1,553 miles), with an estimated flight time of 2h 56m. Operating airlines: AA, F9, UA, WN.

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