Cheapest return flights from San Francisco to San Diego in August from $57

Best time to book flights for San Francisco (SFO) to San Diego (SAN) flights at AirHint

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

Return flights

03 Aug - 06 Aug United direct
04 Aug - 06 Aug United direct
07 Aug - 12 Aug United direct
02 Aug - 06 Aug United direct
03 Aug - 05 Aug United direct
01 Aug - 05 Aug United direct
08 Aug - 14 Aug Frontier Airlines direct
12 Aug - 14 Aug Alaska Airlines direct
05 Aug - 05 Aug Alaska Airlines direct
09 Aug - 11 Aug Frontier Airlines direct
30 Aug - 02 Sep Frontier Airlines
30 Aug - 02 Sep Alaska Airlines direct

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

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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