Cheapest return flights from New York to San Juan in December from 162€

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

Return flights

31 Dec - 12 Jan Frontier Airlines
31 Dec - 08 Jan Frontier Airlines
31 Dec - 09 Jan Frontier Airlines
31 Dec - 10 Jan Frontier Airlines
31 Dec - 15 Jan Spirit Airlines
31 Dec - 07 Jan Frontier Airlines
31 Dec - 11 Jan Spirit Airlines
31 Dec - 16 Jan Spirit Airlines
25 Dec - 27 Dec Frontier Airlines
30 Dec - 07 Jan Frontier Airlines
31 Dec - 17 Jan Spirit Airlines
28 Dec - 31 Dec Frontier Airlines
28 Dec - 30 Dec Frontier Airlines
25 Dec - 31 Dec Frontier Airlines
25 Dec - 28 Dec Frontier Airlines
27 Dec - 31 Dec Frontier Airlines
29 Dec - 31 Dec Frontier Airlines
25 Dec - 26 Dec Frontier Airlines
24 Dec - 27 Dec Spirit Airlines
25 Dec - 30 Dec Frontier Airlines

Also check the deals for one-way flights from New York 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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