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

One-Way flights

17 Jan	Frontier Airlines	direct
23 Jan	Frontier Airlines	direct
13 Jan	Frontier Airlines	direct
09 Jan	Frontier Airlines	direct
21 Jan	Frontier Airlines	direct
22 Jan	Frontier Airlines	direct
25 Jan	Frontier Airlines	direct
27 Jan	Frontier Airlines	direct
29 Jan	Frontier Airlines	direct
20 Jan	Frontier Airlines

Also check the deals for return flights from San Juan to New York 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 one-way flights from San Juan to New York in January from $103

One-Way flights