AirHint found the following cheapest one-way flights from Raleigh-durham (RDU) to San Juan (SJU) in July 2025 (see full year).
One-Way flights
| 28 Jul | Frontier Airlines | direct | |
| 30 Jul | United | ||
| 31 Jul | Southwest Airlines | ||
| 29 Jul | Southwest Airlines | ||
| 27 Jul | United | ||
| 30 Jul | Frontier Airlines | direct |
Also check the deals for return flights from Raleigh-durham to San Juan in July.
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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