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

Return flights

03 Aug - 25 Aug	Sun Country Airlines
02 Aug - 21 Aug	Sun Country Airlines
24 Aug - 04 Sep	Turkish Airlines
01 Aug - 22 Aug	Air India
02 Aug - 21 Aug	Air Premia	direct
14 Aug - 24 Aug	Air Premia	direct
17 Aug - 03 Sep	Air Premia	direct
01 Aug - 22 Aug	Air Premia	direct
24 Aug - 04 Sep	Air Premia	direct
03 Aug - 25 Aug	Air Premia	direct
23 Aug - 06 Sep	Lufthansa

Also check the deals for one-way flights from Newark 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 Newark to Seoul in August from $1278

Return flights