Cheapest return flights from Oakland to San Diego in May from $107

AirHint found the following cheapest return flights from Oakland (OAK) to San Diego (SAN) in May 2026 (see full year).

Return flights

02 May - 02 May Alaska Airlines direct
02 May - 04 May Alaska Airlines direct
07 May - 10 May Southwest Airlines direct
19 May - 23 May Alaska Airlines direct
19 May - 24 May Alaska Airlines direct
19 May - 26 May Alaska Airlines direct
20 May - 07 Jun Southwest Airlines direct
14 May - 18 May Alaska Airlines direct
01 May - 01 May Alaska Airlines direct
29 May - 05 Jun Alaska Airlines direct
01 May - 03 May Alaska Airlines direct
15 May - 16 May Alaska Airlines direct
30 May - 07 Jun Alaska Airlines direct

Also check the deals for one-way flights from Oakland to San Diego in May.

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