AirHint found the following cheapest return flights from Raleigh-durham (RDU) to San Jose (SJO) in September 2025 (see full year).
Return flights
| 17 Sep - 21 Sep | Copa | ||
| 17 Sep - 22 Sep | United | ||
| 10 Sep - 16 Sep | United | ||
| 11 Sep - 15 Sep | American Airlines | ||
| 02 Sep - 09 Sep | American Airlines | ||
| 04 Sep - 07 Sep | Spirit Airlines | ||
| 18 Sep - 21 Sep | Spirit Airlines |
Also check the deals for one-way flights from Raleigh-durham to San Jose in September.
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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