Cheapest return flights from New York to San Juan in December from $141

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

Return flights

05 Dec - 20 Dec Frontier Airlines direct
03 Dec - 12 Dec Frontier Airlines direct
03 Dec - 09 Dec Frontier Airlines direct
03 Dec - 05 Dec Frontier Airlines direct
03 Dec - 06 Dec Frontier Airlines direct
06 Dec - 09 Dec Frontier Airlines direct
06 Dec - 10 Dec Frontier Airlines direct
05 Dec - 12 Dec Frontier Airlines direct
05 Dec - 09 Dec Frontier Airlines direct
05 Dec - 10 Dec Frontier Airlines direct
09 Dec - 11 Jan Frontier Airlines direct
31 Dec - 11 Jan jetBlue
31 Dec - 11 Jan Frontier Airlines direct
30 Dec - 09 Jan jetBlue
31 Dec - 07 Jan jetBlue direct
30 Dec - 09 Jan Frontier Airlines direct
28 Dec - 08 Jan Frontier Airlines direct
18 Dec - 10 Jan jetBlue direct
23 Dec - 13 Jan jetBlue
31 Dec - 05 Jan jetBlue direct

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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