Cheapest return flights from Boston to Seoul in January from 784€

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

Return flights

18 Jan - 05 Feb Frontier Airlines
21 Jan - 26 Jan Turkish Airlines
18 Jan - 31 Jan Turkish Airlines
29 Jan - 14 Feb Spirit Airlines
01 Jan - 29 Jan Porter Airlines (Canada) Ltd
05 Jan - 16 Jan Turkish Airlines
29 Jan - 13 Feb Lufthansa
29 Jan - 12 Feb Lufthansa
29 Jan - 12 Feb Delta direct
01 Jan - 10 Jan Air Transat
29 Jan - 13 Feb Delta direct
29 Jan - 14 Feb Delta direct
03 Jan - 10 Jan Frontier Airlines
02 Jan - 18 Jan Air Canada
02 Jan - 01 Feb KLM
01 Jan - 29 Jan Delta direct
02 Jan - 01 Feb Delta direct
01 Jan - 10 Jan Korean Air direct

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

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