Cheapest return flights from San Francisco to San Jose in September from $475

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

Return flights

12 Sep - 18 Sep Alaska Airlines
10 Sep - 17 Sep jetBlue
10 Sep - 17 Sep United direct
19 Sep - 25 Sep Copa
12 Sep - 18 Sep United direct

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

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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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