AirHint found the following cheapest return flights from Naples (NAP) to Philadelphia (PHL) in December 2025 (see full year).
Return flights
| 06 Dec - 09 Dec | Delta | ||
| 20 Dec - 10 Jan | KLM | ||
| 27 Dec - 04 Jan | Wizz Air Malta | ||
| 27 Dec - 05 Jan | Wizz Air Malta |
Also check the deals for one-way flights from Naples to Philadelphia in December.
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