AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Seoul (ICN) in May 2026 (see full year).

Return flights

07 May - 25 May	Air Canada
04 May - 28 May	Air Canada
04 May - 26 May	Air Canada
04 May - 29 May	Air Canada
01 May - 31 May	Air Canada
08 May - 26 May	Frontier Airlines
09 May - 23 May	Frontier Airlines
14 May - 24 May	Frontier Airlines
08 May - 25 May	Frontier Airlines
25 May - 20 Jun	Air Canada
22 May - 04 Jun	Air Canada
08 May - 23 May	United

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

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 May from 689€

Return flights