Cheapest return flights from San Francisco to San Jose in September from 346€

AirHint found the following cheapest return flights from San Francisco (SFO) to San Jose (SJO) in September 2025 (see full year).

Return flights

15 Sep - 29 Sep jetBlue
15 Sep - 20 Oct jetBlue
16 Sep - 28 Sep jetBlue
15 Sep - 28 Sep jetBlue
18 Sep - 25 Sep Frontier Airlines
25 Sep - 29 Sep Frontier Airlines
03 Sep - 12 Sep United direct
18 Sep - 25 Sep United direct
25 Sep - 29 Sep United direct

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

Skyscanner

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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