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

Return flights

08 Jan - 12 Jan	Frontier Airlines	direct
07 Jan - 09 Jan	Alaska Airlines
15 Jan - 18 Jan	Frontier Airlines	direct
15 Jan - 19 Jan	Frontier Airlines	direct
07 Jan - 08 Jan	Alaska Airlines
16 Jan - 18 Jan	Frontier Airlines	direct
13 Jan - 20 Jan	Alaska Airlines
27 Jan - 01 Feb	Alaska Airlines
16 Jan - 19 Jan	Frontier Airlines	direct
07 Jan - 09 Jan	Southwest Airlines	direct
05 Jan - 09 Jan	Alaska Airlines
31 Jan - 01 Feb	Alaska Airlines

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

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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Cheapest return flights from San Jose to Las Vegas in January from 73€

Return flights