Cheapest one-way flights from San Diego to San Francisco in January from $42

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

One-Way flights

21 Jan Alaska Airlines direct
13 Jan Alaska Airlines direct
15 Jan Southwest Airlines direct
20 Jan Southwest Airlines direct
30 Jan Alaska Airlines direct
11 Jan Alaska Airlines direct
16 Jan Alaska Airlines direct

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

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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