Cheapest return flights from San Francisco (SFO) to San Diego (SAN), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
30 Sep 07 Oct Frontier Airlines
Direct Flight
01 Sep 08 Sep Frontier Airlines
Direct Flight
19 Sep 22 Sep Frontier Airlines
Direct Flight
22 Sep 27 Sep Frontier Airlines
Direct Flight
04 Sep 08 Sep Frontier Airlines
Direct Flight
14 Sep 16 Sep Frontier Airlines
Direct Flight
26 Sep 28 Sep Frontier Airlines
Direct Flight
08 Sep 10 Sep Frontier Airlines
Direct Flight
04 Sep 06 Sep Frontier Airlines
Direct Flight
04 Sep 07 Sep Frontier Airlines
Direct Flight
09 Sep 14 Sep Frontier Airlines
Direct Flight
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deals for one-way flights from San Francisco to San Diego in September.

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Updated Jul 7, 2026.

About these fares

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