Cheapest one-way flights from New York to San Juan in September from $90

Best time to book flights for New York (NYC) to San Juan (SJU) flights at AirHint

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

One-Way flights

20 Sep Frontier Airlines direct
13 Sep Frontier Airlines direct
19 Sep Frontier Airlines direct
03 Sep Frontier Airlines direct
22 Sep Frontier Airlines direct
23 Sep Frontier Airlines direct
08 Sep Frontier Airlines direct
11 Sep Frontier Airlines direct
18 Sep Frontier Airlines direct
26 Sep Frontier Airlines 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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