AirHint found the following cheapest return flights from San Jose (SJO) to San Juan (SJU) in January 2025 (see full year).
30 Jan - 05 Feb | Avianca | ||
15 Jan - 20 Jan | Spirit Airlines | ||
14 Jan - 20 Jan | Spirit Airlines | ||
25 Jan - 30 Jan | Copa | ||
31 Jan - 25 Feb | Copa | ||
01 Jan - 03 Jan | Copa |
Also check the deals for one-way flights from San Jose to San Juan in January.
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.