AirHint found the following cheapest return flights from Philadelphia (PHL) to Taipei (TPE) in December 2025 (see full year).
Return flights
| 09 Dec - 16 Dec | United | ||
| 25 Dec - 14 Jan | United | ||
| 12 Dec - 06 Jan | United | ||
| 23 Dec - 10 Jan | Frontier Airlines | ||
| 21 Dec - 30 Dec | Alaska Airlines |
Also check the deals for one-way flights from Philadelphia to Taipei in December.
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