AirHint found the following cheapest one-way flights from Raleigh-durham (RDU) to Seoul (ICN) in September 2025 (see full year).
One-Way flights
| 15 Sep | Frontier Airlines | ||
| 20 Sep | Frontier Airlines | ||
| 04 Sep | Air Canada | ||
| 17 Sep | Delta | ||
| 23 Sep | Delta | ||
| 26 Sep | Delta | ||
| 01 Sep | Delta |
Also check the deals for return flights from Raleigh-durham to Seoul 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.
Find us on social media