Cheapest return flights from Louisville to San Juan in December from $230

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

Return flights

05 Dec - 19 Dec Spirit Airlines
11 Dec - 15 Dec American Airlines
11 Dec - 18 Dec American Airlines
12 Dec - 19 Dec Allegiant Air
09 Dec - 13 Dec American Airlines
05 Dec - 09 Dec American Airlines
12 Dec - 31 Dec Spirit Airlines
12 Dec - 16 Dec American Airlines
29 Dec - 31 Dec Spirit Airlines
30 Dec - 31 Dec Spirit Airlines
28 Dec - 01 Jan Breeze Airways
19 Dec - 07 Jan Allegiant Air
29 Dec - 07 Jan Spirit Airlines
30 Dec - 07 Jan Spirit Airlines
28 Dec - 05 Jan Breeze Airways
29 Dec - 05 Jan Spirit Airlines
30 Dec - 05 Jan Spirit Airlines
22 Dec - 07 Jan Spirit Airlines
22 Dec - 05 Jan Spirit Airlines
30 Dec - 03 Jan Breeze Airways

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

Powered by

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Feel free to contact us with any feedback or request another flight research.