Cheapest one-way flights from San Diego to San Francisco in May from $48

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

One-Way flights

20 May Southwest Airlines direct
02 May Alaska Airlines direct
12 May Alaska Airlines direct
21 May Southwest Airlines direct
15 May Southwest Airlines direct
24 May Southwest Airlines direct
31 May United direct
03 May Frontier Airlines direct
17 May Frontier Airlines direct

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

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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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