AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Seoul (ICN) in January 2026 (see full year).
Return flights
| 08 Jan - 15 Jan | Delta | ||
| 05 Jan - 17 Feb | United | ||
| 05 Jan - 16 Feb | United | ||
| 08 Jan - 12 Jan | Delta |
Also check the deals for one-way flights from Raleigh-durham to Seoul in January.
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