AirHint found the following cheapest return flights from Oakland (OAK) to San Jose (SJO) in August 2025 (see full year).

Return flights

11 Aug - 25 Aug	Spirit Airlines
18 Aug - 25 Aug	Spirit Airlines
17 Aug - 24 Aug	Spirit Airlines
17 Aug - 25 Aug	Spirit Airlines
20 Aug - 27 Aug	Volaris El Salvador
27 Aug - 31 Aug	Volaris El Salvador
07 Aug - 17 Aug	Spirit Airlines
08 Aug - 18 Aug	Volaris El Salvador
01 Aug - 08 Aug	Volaris El Salvador

Also check the deals for one-way flights from Oakland to San Jose in August.

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

Cheapest return flights from Oakland to San Jose in August from $427

Return flights