Cheapest return flights from Boston to Seoul in January from $836

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

Return flights

19 Jan - 28 Jan Turkish Airlines
12 Jan - 04 Feb Turkish Airlines
13 Jan - 24 Feb Spirit Airlines
06 Jan - 04 Feb Turkish Airlines
06 Jan - 15 Jan Hawaiian Airlines
17 Jan - 25 Jan Cathay Pacific
05 Jan - 19 Jan Turkish Airlines
05 Jan - 08 Jan Turkish Airlines
12 Jan - 04 Feb Delta direct
13 Jan - 24 Feb Delta direct
17 Jan - 25 Jan Korean Air direct
05 Jan - 08 Jan Korean Air direct

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

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