AirHint found the following cheapest one-way flights from New York (LGA) to San Juan (SJU) in April 2026 (see full year).
One-Way flights
| 11 Apr | Frontier Airlines | direct | |
| 07 Apr | Frontier Airlines | ||
| 09 Apr | Frontier Airlines | ||
| 21 Apr | United | ||
| 01 Apr | Southwest Airlines | ||
| 06 Apr | Delta | ||
| 05 Apr | Delta |
Also check the deals for return flights from New York to San Juan in April.
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