Cheapest return flights from Seattle to Las Vegas in December from $173

AirHint found the following cheapest return flights from Seattle (SEA) to Las Vegas (LAS) in December 2025 (see full year).

Return flights

31 Dec - 10 Jan Frontier Airlines
31 Dec - 08 Jan Frontier Airlines direct
29 Dec - 05 Jan Frontier Airlines direct
30 Dec - 05 Jan Frontier Airlines direct
25 Dec - 22 Jan Frontier Airlines
30 Dec - 06 Jan Frontier Airlines direct
31 Dec - 06 Jan Frontier Airlines direct
29 Dec - 04 Jan Frontier Airlines
30 Dec - 04 Jan Frontier Airlines
31 Dec - 07 Jan Frontier Airlines
29 Dec - 31 Dec Frontier Airlines
29 Dec - 31 Dec Frontier Airlines direct
26 Dec - 29 Dec Frontier Airlines
24 Dec - 25 Dec Frontier Airlines
28 Dec - 31 Dec Frontier Airlines
26 Dec - 31 Dec Frontier Airlines direct
28 Dec - 31 Dec Frontier Airlines direct
25 Dec - 29 Dec Frontier Airlines
26 Dec - 29 Dec Frontier Airlines direct
27 Dec - 31 Dec Frontier Airlines

Also check the deals for one-way flights from Seattle to Las Vegas in December.

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