Cheapest one-way flights from Boston to Seoul in December from 456€

AirHint found the following cheapest one-way flights from Boston (BOS) to Seoul (ICN) in December 2025 (see full year).

One-Way flights

31 Dec Hainan Airlines
30 Dec Frontier Airlines
25 Dec Frontier Airlines
24 Dec jetBlue
22 Dec jetBlue
23 Dec jetBlue
28 Dec Cathay Pacific
31 Dec Korean Air direct
20 Dec Spirit Airlines
28 Dec Delta direct

Also check the deals for return flights from Boston to Seoul in December.

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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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