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
04 Jan - 13 Jan	Air Canada
05 Jan - 15 Jan	Air Canada
04 Jan - 15 Jan	Air Canada
23 Jan - 04 Feb	Air Premia	direct
07 Jan - 14 Jan	Air Canada
05 Jan - 22 Feb	Air Canada
04 Jan - 22 Feb	Air Canada
11 Jan - 31 Jan	Air Canada
20 Jan - 29 Jan	Air Canada
26 Jan - 02 Feb	Air Canada
21 Jan - 10 Feb	Air Canada
21 Jan - 28 Jan	Air Canada
19 Jan - 03 Feb	Air Canada
03 Jan - 22 Feb	Air Canada
02 Jan - 22 Feb	Air Canada
19 Jan - 25 Jan	Air Canada
18 Jan - 08 Feb	Air Canada
09 Jan - 05 Feb	Air Canada
13 Jan - 16 Jan	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 828€

Return flights