Cheapest one-way flights from New York to San Juan in September from $85

AirHint found the following cheapest one-way flights from New York (JFK) to San Juan (SJU) in September 2025 (see full year).

One-Way flights

23 Sep Frontier Airlines
30 Sep Frontier Airlines
29 Sep Frontier Airlines direct
01 Sep jetBlue direct
17 Sep jetBlue direct
02 Sep jetBlue direct
25 Sep Frontier Airlines direct
27 Sep jetBlue direct
23 Sep jetBlue direct
30 Sep jetBlue direct

Also check the deals for return flights from New York to San Juan in September.

Skyscanner

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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