Cheapest return LAX–SJO flights, September

AirHint found the following cheapest return flights from Los Angeles (LAX) to San Jose (SJO) in September 2026 (see full year).

Return flights

01 Sep - 08 Sep jetBlue
27 Sep - 02 Oct Avianca
13 Sep - 15 Sep Southwest Airlines
25 Sep - 05 Oct Alaska Airlines direct
12 Sep - 19 Sep Alaska Airlines
06 Sep - 12 Sep Southwest Airlines
25 Sep - 28 Sep Copa

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

Powered by

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Feel free to contact us with any feedback or request another flight research.