AirHint found the following cheapest one-way flights from San Francisco (SFO) to San Jose (SJO) in August 2025 (see full year).

One-Way flights

08 Aug	Frontier Airlines
26 Aug	Hawaiian Airlines
07 Aug	Frontier Airlines
28 Aug	Frontier Airlines
21 Aug	Frontier Airlines
18 Aug	Hawaiian Airlines
25 Aug	Frontier Airlines
10 Aug	Frontier Airlines
06 Aug	Frontier Airlines
05 Aug	Frontier Airlines

Also check the deals for return flights from San Francisco 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.

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Cheapest one-way flights from San Francisco to San Jose in August from 146€

One-Way flights