Cheapest return FSD–ICN flights, May

AirHint found the following cheapest return flights from Sioux Falls (FSD) to Seoul (ICN) in May 2026 (see full year).

Return flights

27 May - 15 Jun Delta
27 May - 14 Jun Delta
27 May - 13 Jun Delta
28 May - 13 Jun WestJet

Also check the deals for one-way flights from Sioux Falls to Seoul in May.

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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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