AirHint found the following cheapest return flights from New York (JFK) to San Juan (SJU) in January 2026 (see full year).

Return flights

24 Jan - 29 Jan	Delta	direct
22 Jan - 27 Jan	Delta	direct
27 Jan - 01 Feb	jetBlue	direct
11 Jan - 16 Jan	Delta	direct
31 Jan - 11 Feb	Delta	direct
01 Jan - 05 Jan	Delta
10 Jan - 14 Jan	Delta
15 Jan - 27 Jan	jetBlue
31 Jan - 15 Feb	Delta	direct
01 Jan - 10 Jan	Delta	direct
09 Jan - 17 Jan	Delta
15 Jan - 27 Jan	Delta	direct
13 Jan - 18 Jan	Delta

Also check the deals for one-way flights from New York to San Juan in January.

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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Cheapest return flights from New York to San Juan in January from 184€

Return flights