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

Return flights

05 Jan - 12 Jan	Air Canada
04 Jan - 15 Jan	Air Canada
04 Jan - 14 Jan	Air Canada
05 Jan - 19 Jan	Air Canada
05 Jan - 12 Feb	Air Canada
07 Jan - 21 Jan	Air Canada
22 Jan - 29 Jan	Turkish Airlines
26 Jan - 02 Feb	Turkish Airlines
22 Jan - 29 Jan	Air Premia	direct
25 Jan - 31 Jan	Air Premia	direct
10 Jan - 31 Jan	Air Premia	direct
11 Jan - 31 Jan	Air Premia	direct
26 Jan - 02 Feb	Air Premia	direct
05 Jan - 27 Feb	Air Canada
21 Jan - 11 Feb	Turkish Airlines
27 Jan - 01 Feb	Air Premia	direct
11 Jan - 01 Feb	Air Premia	direct
26 Jan - 09 Feb	Air Canada
29 Jan - 11 Feb	Turkish Airlines
24 Jan - 07 Feb	Air Canada

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

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 January from $972

Return flights