Cheapest return flights from Louisville to San Juan in December from 199€

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

Return flights

31 Dec - 16 Jan Spirit Airlines
12 Dec - 16 Dec United
31 Dec - 07 Jan Spirit Airlines
22 Dec - 24 Dec Spirit Airlines
22 Dec - 22 Dec Spirit Airlines
23 Dec - 24 Dec Spirit Airlines
22 Dec - 26 Dec Spirit Airlines
23 Dec - 26 Dec Spirit Airlines
21 Dec - 24 Dec Spirit Airlines
21 Dec - 22 Dec Spirit Airlines
21 Dec - 26 Dec Spirit Airlines
13 Dec - 16 Dec Delta
22 Dec - 07 Jan Spirit Airlines
23 Dec - 07 Jan Spirit Airlines
19 Dec - 07 Jan Allegiant Air
21 Dec - 07 Jan Spirit Airlines
24 Dec - 07 Jan Spirit Airlines
20 Dec - 07 Jan Spirit Airlines
31 Dec - 02 Jan Spirit Airlines
31 Dec - 04 Jan Spirit Airlines

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

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