AirHint found the following cheapest return flights from Seoul (GMP) to New York (JFK) in August 2025 (see full year).

Return flights

26 Aug - 02 Sep	Japan Airlines
19 Aug - 26 Aug	Japan Airlines
29 Aug - 11 Sep	Japan Airlines
29 Aug - 08 Sep	Japan Airlines
29 Aug - 05 Sep	Japan Airlines
29 Aug - 02 Sep	Japan Airlines
05 Aug - 12 Aug	Japan Airlines
11 Aug - 25 Aug	Air China
10 Aug - 29 Aug	Air China
13 Aug - 26 Aug	Air China
04 Aug - 19 Aug	Air China
04 Aug - 11 Aug	Air China
07 Aug - 11 Aug	Air China
30 Aug - 05 Sep	Japan Airlines
29 Aug - 07 Sep	Japan Airlines
30 Aug - 08 Sep	Japan Airlines
14 Aug - 25 Sep	Japan Airlines
04 Aug - 10 Aug	Air China
21 Aug - 22 Aug	Japan Airlines
27 Aug - 03 Sep	Japan Airlines

Also check the deals for one-way flights from Seoul to New York 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 Seoul to New York in August from $916

Return flights