AirHint found the following cheapest return flights from Raleigh-durham (RDU) to San Juan (SJU) in April 2026 (see full year).
Return flights
| 22 Apr - 01 May | United | ||
| 04 Apr - 10 Apr | Frontier Airlines | ||
| 02 Apr - 06 Apr | Frontier Airlines | ||
| 03 Apr - 12 Apr | Southwest Airlines |
Also check the deals for one-way flights from Raleigh-durham to San Juan in April.
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