AirHint found the following cheapest return flights from Seattle (SEA) to Punta Cana (PUJ) in December 2025 (see full year).
Return flights
| 22 Dec - 31 Dec | Delta | ||
| 30 Dec - 01 Jan | Aeromexico | ||
| 26 Dec - 02 Jan | Sun Country Airlines | ||
| 31 Dec - 02 Jan | Frontier Airlines | ||
| 24 Dec - 03 Jan | Delta |
Also check the deals for one-way flights from Seattle to Punta Cana in December.
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