Cheapest one-way flights from Boston to Seoul in December from $468

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

One-Way flights

03 Dec American Airlines
01 Dec American Airlines
05 Dec jetBlue
06 Dec Hawaiian Airlines
10 Dec Spirit Airlines
12 Dec Icelandair
14 Dec Icelandair
11 Dec LEVEL
13 Dec Icelandair
15 Dec Spirit Airlines

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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