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

Return flights

04 May - 15 May	Turkish Airlines
06 May - 20 May	Turkish Airlines
01 May - 06 May	Turkish Airlines
06 May - 20 May	Air Premia	direct
18 May - 27 May	Air Premia	direct
09 May - 30 May	Air Canada
01 May - 06 May	Air Premia	direct
04 May - 15 May	Air Premia	direct
09 May - 30 May	Air Premia	direct
20 May - 30 May	Lufthansa
30 May - 30 Jun	Lufthansa

Also check the deals for one-way flights from Newark to Seoul in May.

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 May from 905€

Return flights