Cheapest return flights from San Francisco to San Diego in May from $67

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 May 2025 (see full year).

Return flights

27 May - 03 Jun United direct
27 May - 24 Jun United direct
30 May - 04 Jun United direct
31 May - 04 Jun United direct
29 May - 30 May Frontier Airlines direct
30 May - 06 Jun Alaska Airlines direct
30 May - 05 Jun Alaska Airlines direct
31 May - 05 Jun Frontier Airlines direct
29 May - 02 Jun Frontier Airlines direct
27 May - 29 May United direct
27 May - 28 May United direct
28 May - 29 May United direct
30 May - 02 Jun Frontier Airlines direct
31 May - 31 May Frontier Airlines direct
30 May - 30 May Frontier Airlines direct
31 May - 02 Jun Frontier Airlines direct
30 May - 31 May Frontier Airlines direct
28 May - 28 May United direct
25 May - 31 May Frontier Airlines direct
27 May - 30 May Alaska Airlines direct

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