Cheapest return flights from Boston to Seoul in May from $940

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

Return flights

01 May - 13 May Hainan Airlines
02 May - 16 May Frontier Airlines
05 May - 20 May American Airlines
01 May - 15 May Hainan Airlines
03 May - 25 May Alaska Airlines
07 May - 14 May Etihad Airways
06 May - 16 May Cathay Pacific
06 May - 20 May Air Canada
24 May - 14 Jun Turkish Airlines
15 May - 18 May Air Canada
15 May - 19 May Air Canada
24 May - 14 Jun Korean Air direct

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

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