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

Return flights

04 May - 03 Jun	Turkish Airlines
04 May - 14 May	Turkish Airlines
04 May - 13 May	Turkish Airlines
06 May - 13 May	Turkish Airlines
03 May - 13 May	Turkish Airlines
01 May - 08 May	Turkish Airlines
02 May - 13 May	Turkish Airlines
01 May - 14 May	Turkish Airlines
05 May - 18 May	Turkish Airlines
04 May - 11 May	Turkish Airlines
26 May - 03 Jun	Air Canada
08 May - 25 May	Air Canada
04 May - 16 Jun	Air Canada
04 May - 30 Jun	Air Canada
23 May - 06 Jun	Air Canada
29 May - 07 Jun	Air Canada
30 May - 04 Jun	Air Canada
04 May - 03 Jun	Air Premia	direct
26 May - 28 Jun	Porter Airlines (Canada) Ltd
04 May - 30 Jun	Air Premia	direct

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 $986

Return flights