Cheapest return flights from New York to San Juan in December from 152€

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

Return flights

13 Dec - 20 Dec Frontier Airlines
04 Dec - 08 Dec Spirit Airlines
03 Dec - 08 Dec Frontier Airlines
04 Dec - 06 Dec Frontier Airlines
11 Dec - 20 Dec Frontier Airlines
07 Dec - 11 Dec Spirit Airlines
01 Dec - 04 Dec Spirit Airlines
04 Dec - 10 Dec Spirit Airlines
07 Dec - 16 Dec Spirit Airlines
08 Dec - 13 Dec Spirit Airlines
31 Dec - 20 Jan Spirit Airlines
14 Dec - 13 Jan Frontier Airlines
31 Dec - 07 Jan Spirit Airlines
31 Dec - 14 Jan Spirit Airlines
31 Dec - 21 Jan Spirit Airlines
31 Dec - 13 Jan Spirit Airlines
31 Dec - 11 Jan Spirit Airlines
31 Dec - 12 Jan Spirit Airlines
15 Dec - 20 Jan Spirit Airlines
31 Dec - 16 Jan Spirit 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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