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

Return flights

31 Jul - 07 Aug	Frontier Airlines
30 Jul - 06 Aug	Frontier Airlines
27 Jul - 05 Aug	Avianca
28 Jul - 31 Jul	Avianca
27 Jul - 31 Jul	Avianca
31 Jul - 12 Aug	United	direct
30 Jul - 06 Aug	United	direct
31 Jul - 11 Aug	United	direct
31 Jul - 07 Aug	United	direct
28 Jul - 31 Jul	United	direct
27 Jul - 05 Aug	United	direct
27 Jul - 31 Jul	United	direct

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

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 return flights from San Francisco to San Jose in July from 465€

Return flights