Cheapest return flights from Los Angeles to San Juan in December from $254

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

Return flights

04 Dec - 06 Dec Spirit Airlines
03 Dec - 06 Dec Spirit Airlines
04 Dec - 11 Dec Spirit Airlines
04 Dec - 07 Dec Spirit Airlines
03 Dec - 11 Dec Spirit Airlines
03 Dec - 07 Dec Spirit Airlines
07 Dec - 11 Dec Spirit Airlines
07 Dec - 14 Dec Spirit Airlines
09 Dec - 14 Dec Spirit Airlines
11 Dec - 15 Dec Frontier Airlines
31 Dec - 20 Jan Spirit Airlines
29 Dec - 09 Jan United
29 Dec - 16 Jan Spirit Airlines
29 Dec - 17 Jan Spirit Airlines
29 Dec - 18 Jan Spirit Airlines
31 Dec - 16 Jan Spirit Airlines
31 Dec - 17 Jan Spirit Airlines
31 Dec - 18 Jan Spirit Airlines
28 Dec - 16 Jan Spirit Airlines
28 Dec - 17 Jan Spirit Airlines

Also check the deals for one-way flights from Los Angeles 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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