AirHint found the following cheapest return flights from Jacksonville (JAX) to San Jose (SJO) in March 2026 (see full year).
Return flights
| 04 Mar - 09 Mar | American Airlines | ||
| 16 Mar - 21 Mar | Frontier Airlines | ||
| 22 Mar - 27 Mar | United | ||
| 14 Mar - 21 Mar | Breeze Airways | ||
| 17 Mar - 22 Mar | jetBlue | ||
| 17 Mar - 21 Mar | jetBlue |
Also check the deals for one-way flights from Jacksonville to San Jose in March.
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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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