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

Return flights

18 Feb - 16 Mar	Spirit Airlines
09 Feb - 23 Feb	Etihad Airways
27 Feb - 06 Mar	Spirit Airlines
17 Feb - 24 Feb	Spirit Airlines
07 Feb - 15 Feb	Alaska Airlines
06 Feb - 15 Feb	Alaska Airlines
18 Feb - 22 Feb	Etihad Airways
06 Feb - 12 Feb	Spirit Airlines
15 Feb - 11 Mar	Cathay Pacific
05 Feb - 12 Feb	Alaska Airlines
18 Feb - 11 Mar	Korean Air	direct
18 Feb - 16 Mar	Korean Air	direct
09 Feb - 23 Feb	Korean Air	direct
17 Feb - 24 Feb	Delta	direct
15 Feb - 11 Mar	Korean Air	direct
27 Feb - 06 Mar	Delta	direct
18 Feb - 22 Feb	Korean Air	direct

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

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 Boston to Seoul in February from 871€

Return flights