AirHint found the following cheapest one-way flights from Buffalo (BUF) to San Juan (SJU) in July 2026 (see full year).
One-Way flights
| 30 Jul | Frontier Airlines | ||
| 01 Jul | Delta | ||
| 29 Jul | Frontier Airlines | ||
| 03 Jul | Southwest Airlines | ||
| 02 Jul | Frontier Airlines | ||
| 01 Jul | jetBlue | direct | |
| 03 Jul | jetBlue | direct |
Also check the deals for return flights from Buffalo to San Juan in July.
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