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

Return flights

28 Jul - 30 Aug	Frontier Airlines
15 Jul - 30 Aug	Air Premia
22 Jul - 24 Aug	Air Premia
30 Jul - 31 Aug	Air Premia
29 Jul - 20 Aug	Air Premia
16 Jul - 23 Jul	Air Premia
16 Jul - 19 Jul	Air Premia
14 Jul - 18 Jul	Air Premia
31 Jul - 20 Aug	Air Premia
13 Jul - 16 Jul	Air Premia
18 Jul - 20 Jul	Air Premia
09 Jul - 16 Jul	Air Premia
28 Jul - 05 Aug	Air Premia
19 Jul - 25 Jul	Hawaiian Airlines
16 Jul - 17 Aug	Air Premia
29 Jul - 16 Aug	Air Premia
29 Jul - 11 Aug	Air Premia
12 Jul - 19 Jul	Spirit Airlines
13 Jul - 20 Jul	Air Premia	direct
17 Jul - 24 Jul	Air Premia

Also check the deals for one-way flights from Newark 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 Newark to Seoul in July from 835€

Return flights