Cheapest return flights from Los Angeles to San Juan in December from 259€

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

Return flights

07 Dec - 17 Dec Spirit Airlines
07 Dec - 13 Dec Spirit Airlines
10 Dec - 16 Dec United
05 Dec - 17 Dec Spirit Airlines
05 Dec - 13 Dec Spirit Airlines
05 Dec - 07 Dec Spirit Airlines
13 Dec - 17 Dec Southwest Airlines
07 Dec - 14 Dec United
05 Dec - 14 Dec United
11 Dec - 14 Dec United
30 Dec - 18 Jan Spirit Airlines
30 Dec - 12 Jan Spirit Airlines
30 Dec - 11 Jan Spirit Airlines
28 Dec - 11 Jan Southwest Airlines
26 Dec - 12 Jan Spirit Airlines
30 Dec - 05 Jan United
26 Dec - 11 Jan Spirit Airlines
21 Dec - 04 Jan Frontier Airlines
28 Dec - 04 Jan Frontier Airlines
26 Dec - 05 Jan Spirit Airlines

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

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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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