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

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

Return flights

20 Apr - 24 Apr Frontier Airlines direct
20 Apr - 23 Apr Frontier Airlines direct
16 Apr - 24 Apr Frontier Airlines direct
16 Apr - 23 Apr Frontier Airlines direct
23 Apr - 24 Apr Frontier Airlines direct
22 Apr - 24 Apr Alaska Airlines direct
22 Apr - 23 Apr Alaska Airlines direct
20 Apr - 28 Apr Frontier Airlines direct
20 Apr - 27 Apr Frontier Airlines direct
27 Apr - 07 May Frontier Airlines direct
19 Apr - 23 Apr Frontier Airlines direct
24 Apr - 04 May Frontier Airlines direct
30 Apr - 02 May Southwest Airlines direct
30 Apr - 03 May Frontier Airlines direct

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

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