AirHint found the following cheapest return flights from Seattle (SEA) to Puerto Vallarta (PVR) in December 2025 (see full year).

Return flights

22 Dec - 27 Dec	United
26 Dec - 31 Dec	Alaska Airlines
23 Dec - 01 Jan	Sun Country Airlines
24 Dec - 04 Jan	Air Canada
25 Dec - 01 Jan	Volaris
22 Dec - 02 Jan	WestJet
23 Dec - 01 Jan	Delta	direct
26 Dec - 31 Dec	Delta	direct
25 Dec - 01 Jan	Delta	direct
20 Dec - 28 Dec	Aeromexico	direct
24 Dec - 04 Jan	Delta	direct
22 Dec - 02 Jan	Aeromexico	direct
22 Dec - 27 Dec	Alaska Airlines	direct
27 Dec - 03 Jan	Alaska Airlines	direct

Also check the deals for one-way flights from Seattle to Puerto Vallarta in December.

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.

Book a cheap hotel in Puerto Vallarta

Cheap car rent in Puerto Vallarta

Cheapest return flights from Seattle to Puerto Vallarta in December from $736

Return flights