AirHint found the following cheapest one-way flights from Seattle (SEA) to Puerto Vallarta (PVR) in December 2025 (see full year).
One-Way flights
| 31 Dec | Delta | direct | |
| 06 Dec | Delta | direct | |
| 06 Dec | Aeromexico | ||
| 09 Dec | Delta | direct | |
| 09 Dec | Aeromexico | ||
| 08 Dec | Delta | direct | |
| 07 Dec | Delta | ||
| 15 Dec | Southwest Airlines | ||
| 16 Dec | United | ||
| 14 Dec | Southwest Airlines |
Also check the deals for return flights from Seattle to Puerto Vallarta in December.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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