AirHint found the following cheapest one-way flights from New York (JFK) to San Juan (SJU) in September 2026 (see full year).
One-Way flights
| 02 Sep | Frontier Airlines | ||
| 01 Sep | Frontier Airlines | ||
| 04 Sep | Delta | direct | |
| 01 Sep | jetBlue | direct | |
| 08 Sep | jetBlue | direct | |
| 25 Sep | Delta | direct | |
| 02 Sep | Delta | direct | |
| 26 Sep | Avianca | ||
| 29 Sep | Avianca | ||
| 17 Sep | Copa |
Also check the deals for return flights from New York to San Juan in September.
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