Cheapest return flights from San Francisco to San Diego in October from $56

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

Return flights

19 Oct - 21 Oct Alaska Airlines direct
01 Oct - 02 Oct Alaska Airlines direct
01 Oct - 08 Oct Alaska Airlines direct
20 Oct - 23 Oct Alaska Airlines direct
06 Oct - 07 Oct Alaska Airlines direct
13 Oct - 15 Oct Alaska Airlines direct
13 Oct - 16 Oct Frontier Airlines direct
04 Oct - 06 Oct Frontier Airlines direct
16 Oct - 23 Oct Frontier Airlines direct
04 Oct - 07 Oct Frontier Airlines direct
31 Oct - 08 Nov Alaska Airlines direct
30 Oct - 07 Nov Alaska Airlines direct
30 Oct - 02 Nov Alaska Airlines direct
29 Oct - 06 Nov Southwest Airlines direct
31 Oct - 02 Nov Southwest Airlines direct

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

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.

Book a cheap hotel in San Diego

Cheap car rent in San Diego

Feel free to contact us with any feedback or request another flight research.