Cheapest one-way BOS–ICN flights, May

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

One-Way flights

25 May WestJet
06 May Alaska Airlines
20 May Porter Airlines (Canada) Ltd
18 May WestJet
16 May Frontier Airlines
13 May WestJet
10 May Air Canada
05 May Cathay Pacific
09 May Alaska Airlines
19 May Porter Airlines (Canada) Ltd

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

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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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