Cheapest return flights from San Diego to San Jose in April from $326

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

Return flights

08 Apr - 15 Apr Copa
23 Apr - 29 Apr United
15 Apr - 21 Apr Southwest Airlines
16 Apr - 24 Apr Frontier Airlines
02 Apr - 08 Apr Southwest Airlines
08 Apr - 12 Apr jetBlue
09 Apr - 12 Apr jetBlue
04 Apr - 12 Apr Frontier Airlines

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

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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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