AirHint found the following cheapest return flights from New York (JFK) to Seoul (ICN) in May 2026 (see full year).

Return flights

10 May - 27 May	Cathay Pacific
13 May - 17 May	Cathay Pacific
10 May - 31 May	Cathay Pacific
03 May - 09 May	Turkish Airlines
20 May - 27 May	Cathay Pacific
14 May - 21 May	Cathay Pacific
30 May - 09 Jun	Cathay Pacific
29 May - 02 Jun	Cathay Pacific
17 May - 14 Jun	Cathay Pacific
14 May - 23 May	Finnair
15 May - 23 May	Finnair
22 May - 16 Jun	Cathay Pacific
22 May - 15 Jun	Singapore Airlines
23 May - 13 Jun	WestJet
22 May - 14 Jun	Cathay Pacific
31 May - 08 Jun	WestJet
02 May - 31 May	Finnair
22 May - 13 Jun	Finnair
23 May - 30 May	Singapore Airlines
28 May - 13 Jun	WestJet

Also check the deals for one-way flights from New York 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 New York to Seoul in May from 853€

Return flights