Cheapest return flights from San Diego to San Jose in September from 324€

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

Return flights

24 Sep - 01 Oct United
10 Sep - 24 Sep United
09 Sep - 25 Sep United
04 Sep - 07 Sep Spirit Airlines
04 Sep - 24 Sep Spirit Airlines
06 Sep - 24 Sep Spirit Airlines
04 Sep - 14 Sep Spirit Airlines
06 Sep - 14 Sep Spirit Airlines
10 Sep - 01 Oct Spirit Airlines
10 Sep - 14 Sep Spirit Airlines
21 Sep - 01 Oct Spirit Airlines
21 Sep - 24 Sep Spirit Airlines

Also check the deals for one-way flights from San Diego 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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