AirHint found the following cheapest return flights from Portland (PDX) to Manila (MNL) in December 2025 (see full year).
Return flights
| 05 Dec - 27 Dec | Alaska Airlines | ||
| 11 Dec - 21 Dec | Hawaiian Airlines | ||
| 30 Dec - 06 Jan | Hawaiian Airlines | ||
| 13 Dec - 05 Jan | Frontier Airlines | ||
| 15 Dec - 02 Jan | Hawaiian Airlines |
Also check the deals for one-way flights from Portland to Manila in December.
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