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

Return flights

21 Jul - 31 Aug	Frontier Airlines
28 Jul - 29 Aug	Frontier Airlines
12 Jul - 15 Jul	Alaska Airlines
16 Jul - 20 Aug	Frontier Airlines
22 Jul - 25 Aug	Etihad Airways
31 Jul - 31 Aug	Air India
29 Jul - 12 Aug	Air Canada
12 Jul - 19 Jul	Alaska Airlines
30 Jul - 06 Aug	Air Canada
29 Jul - 05 Aug	Air Canada
25 Jul - 07 Aug	Ethiopian Airlines
29 Jul - 11 Aug	Frontier Airlines
10 Jul - 17 Jul	Frontier Airlines
06 Jul - 09 Jul	Norse Atlantic Airways (UK)
14 Jul - 25 Jul	Frontier Airlines
15 Jul - 18 Jul	Air India
16 Jul - 19 Jul	Frontier Airlines
17 Jul - 20 Jul	Air India
09 Jul - 16 Jul	Frontier Airlines
18 Jul - 23 Jul	Air India

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

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 July from 964€

Return flights