Cheapest return RDU–SJU flights, August

AirHint found the following cheapest return flights from Raleigh-durham (RDU) to San Juan (SJU) in August 2026 (see full year).

Return flights

27 Aug - 31 Aug Frontier Airlines
13 Aug - 23 Aug Frontier Airlines
05 Aug - 19 Aug Frontier Airlines
22 Aug - 25 Aug Frontier Airlines
01 Aug - 06 Aug Frontier Airlines
18 Aug - 23 Aug Frontier Airlines
12 Aug - 16 Aug Frontier Airlines

Also check the deals for one-way flights from Raleigh-durham to San Juan in August.

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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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