AirHint found the following cheapest return flights from San Luis Obispo (SBP) to San Diego (SAN) in August 2025 (see full year).

Return flights

15 Aug - 18 Aug	United
21 Aug - 24 Aug	United
22 Aug - 25 Aug	Hawaiian Airlines	direct
15 Aug - 18 Aug	Alaska Airlines	direct
21 Aug - 24 Aug	Alaska Airlines	direct
04 Aug - 06 Aug	United
03 Aug - 07 Aug	Alaska Airlines	direct
04 Aug - 06 Aug	Alaska Airlines	direct
29 Aug - 29 Aug	Alaska Airlines

Also check the deals for one-way flights from San Luis Obispo to San Diego in August.

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 Luis Obispo to San Diego in August from 134€

Return flights