Cheapest return flights from San Francisco to San Diego in October from $89

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 October 2025 (see full year).

Return flights

30 Oct - 03 Nov Alaska Airlines direct
31 Oct - 03 Nov Frontier Airlines direct
03 Oct - 11 Oct Alaska Airlines direct
20 Oct - 29 Oct Alaska Airlines direct
22 Oct - 05 Nov Hawaiian Airlines direct
21 Oct - 05 Nov Hawaiian Airlines direct
21 Oct - 06 Nov Hawaiian Airlines direct
30 Oct - 02 Nov Frontier Airlines direct
16 Oct - 20 Oct Frontier Airlines direct
24 Oct - 27 Oct Frontier Airlines direct
23 Oct - 05 Nov Frontier Airlines direct

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

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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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