Cheapest return LAS–SJO flights, September

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

Return flights

28 Sep - 10 Oct Viva
21 Sep - 29 Sep Viva
21 Sep - 10 Oct Viva
25 Sep - 29 Sep Viva
25 Sep - 10 Oct Viva
12 Sep - 17 Sep Southwest Airlines
04 Sep - 07 Sep United
11 Sep - 29 Sep Viva
11 Sep - 22 Sep Viva

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

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