Cheapest return flights from Seattle to Las Vegas in December from $58

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

Return flights

08 Dec - 11 Dec Frontier Airlines direct
14 Dec - 20 Dec Frontier Airlines direct
05 Dec - 12 Dec Frontier Airlines direct
01 Dec - 05 Dec Frontier Airlines direct
05 Dec - 07 Dec Frontier Airlines direct
05 Dec - 08 Dec Frontier Airlines direct
19 Dec - 22 Dec Frontier Airlines
21 Dec - 23 Dec Frontier Airlines
14 Dec - 19 Dec Frontier Airlines direct
09 Dec - 12 Dec Alaska Airlines direct
30 Dec - 01 Jan Alaska Airlines direct
29 Dec - 01 Jan Alaska Airlines direct
31 Dec - 04 Jan Frontier Airlines direct
31 Dec - 03 Jan Frontier Airlines
22 Dec - 05 Jan Alaska Airlines direct
31 Dec - 03 Jan Frontier Airlines direct
29 Dec - 04 Jan Alaska Airlines direct
24 Dec - 01 Jan Frontier Airlines direct
19 Dec - 01 Jan Delta direct
15 Dec - 02 Jan Frontier Airlines direct

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

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