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

Return flights

01 Jun - 15 Jun	Air Canada
01 Jun - 05 Jun	Air Canada
14 Jun - 25 Jun	Air Canada
01 Jun - 10 Jun	Sun Country Airlines
15 Jun - 22 Jun	Air Premia	direct
13 Jun - 28 Jun	Sun Country Airlines
02 Jun - 24 Jun	Air Canada
07 Jun - 20 Jun	WestJet
16 Jun - 30 Jun	WestJet
01 Jun - 30 Jun	Sun Country Airlines
22 Jun - 15 Jul	Air Premia	direct
25 Jun - 01 Jul	Air Premia	direct
22 Jun - 24 Jul	Air Premia	direct
25 Jun - 31 Jul	Air Premia	direct
13 Jun - 11 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 $1157

Return flights