Cheapest return flights from San Jose to San Diego in September from $76

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

Return flights

29 Sep - 02 Oct Alaska Airlines direct
30 Sep - 01 Oct Spirit Airlines
30 Sep - 01 Oct Hawaiian Airlines direct
27 Sep - 30 Sep Alaska Airlines direct
30 Sep - 02 Oct Alaska Airlines direct
25 Sep - 01 Oct Spirit Airlines
23 Sep - 25 Sep Spirit Airlines
30 Sep - 03 Oct Spirit Airlines
27 Sep - 01 Oct Hawaiian Airlines direct
23 Sep - 24 Sep Spirit Airlines
25 Sep - 30 Sep Alaska Airlines direct
27 Sep - 29 Sep Southwest Airlines direct
23 Sep - 01 Oct Spirit Airlines
29 Sep - 06 Oct Southwest Airlines direct
22 Sep - 01 Oct Spirit Airlines
25 Sep - 29 Sep Spirit Airlines
21 Sep - 22 Sep Spirit Airlines
24 Sep - 27 Sep Spirit Airlines
08 Sep - 11 Sep Spirit Airlines
08 Sep - 27 Sep Spirit Airlines

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