AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Seoul (ICN) in December 2025 (see full year).

Return flights

10 Dec - 23 Dec	Air Canada
10 Dec - 27 Dec	Air Canada
11 Dec - 08 Jan	Air Canada
09 Dec - 31 Dec	United
02 Dec - 31 Dec	United
24 Dec - 27 Dec	Air Canada
23 Dec - 27 Dec	Air Canada
13 Dec - 29 Dec	Air Canada
22 Dec - 27 Dec	Air Canada
22 Dec - 28 Dec	Air Canada
16 Dec - 29 Dec	Air Canada
15 Dec - 06 Jan	Air Canada
12 Dec - 05 Jan	United
20 Dec - 06 Jan	Air Canada
19 Dec - 06 Jan	Air Canada

Also check the deals for one-way flights from Raleigh-durham to Seoul in December.

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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Cheapest return flights from Raleigh-durham to Seoul in December from $926

Return flights