Cheapest return RDU–SJU flights, July

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

Return flights

21 Jul - 28 Jul Frontier Airlines
07 Jul - 11 Jul Frontier Airlines
25 Jul - 29 Jul Frontier Airlines
01 Jul - 07 Jul Frontier Airlines
25 Jul - 01 Aug Frontier Airlines
16 Jul - 21 Jul Frontier Airlines
24 Jul - 01 Aug Frontier Airlines
16 Jul - 19 Jul Frontier Airlines
16 Jul - 20 Jul Frontier Airlines
24 Jul - 27 Jul Frontier Airlines
17 Jul - 19 Jul Frontier Airlines
17 Jul - 20 Jul Frontier Airlines

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

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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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