Cheapest return flights from Raleigh-durham to San Juan in September from 235€

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

Return flights

27 Sep - 27 Sep United
20 Sep - 23 Sep Southwest Airlines
20 Sep - 27 Sep Southwest Airlines
14 Sep - 19 Sep Delta
07 Sep - 12 Sep Delta
14 Sep - 18 Sep Delta
19 Sep - 22 Sep Southwest Airlines
14 Sep - 21 Sep Southwest Airlines
27 Sep - 03 Oct Delta
27 Sep - 04 Oct Delta
29 Sep - 03 Oct Delta
30 Sep - 04 Oct Delta
12 Sep - 20 Sep Spirit Airlines
01 Sep - 22 Sep United
26 Sep - 04 Oct United
26 Sep - 02 Oct United
26 Sep - 03 Oct Frontier Airlines

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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