Cheapest return flights from Jacksonville to San Juan in December from 379€

AirHint found the following cheapest return flights from Jacksonville (JAX) to San Juan (SJU) in December 2025 (see full year).

Return flights

11 Dec - 14 Dec Southwest Airlines
14 Dec - 21 Dec Southwest Airlines
12 Dec - 05 Jan Southwest Airlines
29 Dec - 05 Jan Southwest Airlines
26 Dec - 30 Dec Southwest Airlines
18 Dec - 11 Jan Southwest Airlines

Also check the deals for one-way flights from Jacksonville to San Juan in December.

Skyscanner

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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