Cheapest return flights from San Francisco to San Diego in January from 49€

AirHint found the following cheapest return flights from San Francisco (SFO) to San Diego (SAN) in January 2026 (see full year).

Return flights

12 Jan - 12 Jan Frontier Airlines direct
12 Jan - 16 Jan Frontier Airlines direct
05 Jan - 12 Jan Frontier Airlines direct
12 Jan - 14 Jan Frontier Airlines direct
12 Jan - 15 Jan Frontier Airlines
30 Jan - 02 Feb Hawaiian Airlines direct
13 Jan - 14 Jan Hawaiian Airlines direct
23 Jan - 25 Jan Hawaiian Airlines direct
14 Jan - 16 Jan Frontier Airlines
20 Jan - 20 Jan Alaska Airlines direct
05 Jan - 13 Jan Frontier Airlines direct
29 Jan - 01 Feb Southwest Airlines direct
31 Jan - 01 Feb Southwest Airlines direct
30 Jan - 01 Feb Hawaiian Airlines direct
30 Jan - 06 Feb United direct

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

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