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

Return flights

10 Aug - 09 Sep	Cathay Pacific
28 Aug - 06 Sep	Cathay Pacific
26 Aug - 09 Sep	Cathay Pacific
20 Aug - 03 Sep	Cathay Pacific
14 Aug - 25 Aug	China Airlines
23 Aug - 30 Aug	China Airlines
07 Aug - 12 Aug	China Airlines
10 Aug - 31 Aug	Finnair
04 Aug - 27 Aug	Cathay Pacific
12 Aug - 27 Aug	Cathay Pacific
10 Aug - 31 Aug	Korean Air	direct
26 Aug - 09 Sep	Asiana Airlines	direct
01 Aug - 21 Aug	Etihad Airways
12 Aug - 27 Aug	Delta	direct
10 Aug - 09 Sep	Delta	direct
20 Aug - 03 Sep	Delta	direct
28 Aug - 06 Sep	Korean Air	direct
14 Aug - 25 Aug	Korean Air	direct

Also check the deals for one-way flights from New York to Seoul in August.

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 August from $1018

Return flights