Cheapest one-way flights from San Francisco to San Diego in January from 48€

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

One-Way flights

20 Jan Alaska Airlines direct
18 Jan Alaska Airlines direct
19 Jan Alaska Airlines direct
15 Jan Alaska Airlines direct
13 Jan Southwest Airlines direct
22 Jan Southwest Airlines direct
23 Jan Southwest Airlines direct
17 Jan Southwest Airlines direct
30 Jan United direct
24 Jan Southwest Airlines direct

Also check the deals for return flights from San Francisco to San Diego in January.

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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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