Cheapest one-way flights from San Francisco to San Diego in September from 28€

AirHint found the following cheapest one-way flights from San Francisco (SFO) to San Diego (SAN) in September 2025 (see full year).

One-Way flights

23 Sep Hawaiian Airlines direct
15 Sep Southwest Airlines direct
19 Sep United direct
21 Sep Southwest Airlines direct
04 Sep Southwest Airlines direct
07 Sep Southwest Airlines direct
28 Sep Southwest Airlines direct
14 Sep United direct
30 Sep Southwest Airlines direct
11 Sep Southwest Airlines direct

Also check the deals for return flights from San Francisco 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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