AirHint found the following cheapest return flights from San Diego (SAN) to San Jose (SJO) in December 2026 (see full year).
Return flights
| 02 Dec - 09 Dec | Copa | ||
| 22 Dec - 31 Dec | Alaska Airlines | ||
| 21 Dec - 31 Dec | American Airlines | ||
| 20 Dec - 31 Dec | Alaska Airlines | ||
| 27 Dec - 07 Jan | United |
Also check the deals for one-way flights from San Diego to San Jose in December.
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