Cheapest return flights from Raleigh-durham to San Juan in September from $209

AirHint found the following cheapest return flights from Raleigh-durham (RDU) to San Juan (SJU) in September 2025 (see full year).

Return flights

29 Sep - 02 Oct jetBlue direct
24 Sep - 29 Sep American Airlines
29 Sep - 06 Oct jetBlue
26 Sep - 29 Sep Breeze Airways
25 Sep - 29 Sep Frontier Airlines
21 Sep - 26 Sep jetBlue direct
22 Sep - 29 Sep Frontier Airlines
20 Sep - 24 Sep Frontier Airlines
20 Sep - 27 Sep Frontier Airlines
20 Sep - 23 Sep Frontier Airlines
20 Sep - 21 Sep Frontier Airlines
26 Sep - 29 Sep jetBlue direct

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

Skyscanner

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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