Cheapest return flights from Louisville to San Juan in January from 193€

AirHint found the following cheapest return flights from Louisville (SDF) to San Juan (SJU) in January 2026 (see full year).

Return flights

23 Jan - 29 Jan Delta
26 Jan - 06 Feb Spirit Airlines
23 Jan - 06 Feb Spirit Airlines
19 Jan - 06 Feb Spirit Airlines
05 Jan - 10 Jan Allegiant Air
22 Jan - 29 Jan Spirit Airlines
23 Jan - 26 Jan Spirit Airlines
29 Jan - 09 Feb Spirit Airlines
19 Jan - 26 Jan Spirit Airlines
15 Jan - 18 Jan Spirit Airlines
09 Jan - 17 Jan Southwest Airlines

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

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