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

Return flights

03 Jun - 17 Jun	Air Canada
01 Jun - 10 Jun	Alaska Airlines
01 Jun - 22 Jun	Alaska Airlines
24 Jun - 01 Jul	Air Canada
16 Jun - 18 Jun	Air Canada
01 Jun - 10 Jun	Air Premia	direct
15 Jun - 22 Jun	Air Premia	direct
01 Jun - 22 Jun	Air Premia	direct
03 Jun - 17 Jun	Air Premia	direct
24 Jun - 01 Jul	Air Premia	direct
20 Jun - 17 Jul	Air Canada
29 Jun - 10 Jul	Ethiopian Airlines
05 Jun - 13 Jun	Air Premia	direct
16 Jun - 18 Jun	Air Premia	direct
29 Jun - 10 Jul	Air Premia	direct
21 Jun - 17 Jul	Air Canada
20 Jun - 17 Jul	Air Premia	direct
21 Jun - 17 Jul	Air Premia	direct
16 Jun - 07 Jul	Air Canada

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

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 June from $1331

Return flights