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

Return flights

05 Jan - 13 Jan	Air Canada
06 Jan - 12 Jan	Air Canada
05 Jan - 19 Jan	Air Canada
06 Jan - 13 Jan	Air Canada
20 Jan - 27 Jan	Spirit Airlines
19 Jan - 26 Jan	Air Canada
13 Jan - 20 Jan	Air Canada
21 Jan - 18 Feb	Air Canada
14 Jan - 11 Feb	Air Canada
13 Jan - 10 Feb	Air Canada
24 Jan - 24 Feb	Air Canada
01 Jan - 11 Jan	Air Canada
09 Jan - 16 Jan	Air Canada
08 Jan - 31 Jan	Air Canada
24 Jan - 21 Feb	Air Canada
24 Jan - 24 Feb	Air Premia	direct
24 Jan - 21 Feb	Air Premia	direct
13 Jan - 10 Feb	Air Premia	direct
14 Jan - 11 Feb	Air Premia	direct
22 Jan - 07 Feb	Delta

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 822€

Return flights