Cheapest return flights from Seattle to Las Vegas in January from $37

AirHint found the following cheapest return flights from Seattle (SEA) to Las Vegas (LAS) in January 2026 (see full year).

Return flights

26 Jan - 30 Jan Frontier Airlines direct
22 Jan - 24 Jan Frontier Airlines direct
26 Jan - 29 Jan Frontier Airlines direct
24 Jan - 30 Jan Frontier Airlines direct
12 Jan - 22 Jan Frontier Airlines direct
29 Jan - 30 Jan Frontier Airlines direct
18 Jan - 24 Jan Frontier Airlines direct
12 Jan - 16 Jan Frontier Airlines direct
12 Jan - 15 Jan Frontier Airlines direct
06 Jan - 08 Jan Frontier Airlines direct
29 Jan - 01 Feb Frontier Airlines direct

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

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