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

Return flights

03 Jun - 09 Jun	Air Canada
05 Jun - 30 Jun	WestJet
07 Jun - 08 Jul	Porter Airlines (Canada) Ltd
07 Jun - 20 Jun	Air Canada
09 Jun - 30 Jun	jetBlue
07 Jun - 30 Jun	Air Canada
08 Jun - 30 Jun	Air Canada
17 Jun - 28 Jun	Turkish Airlines
01 Jun - 14 Jun	Turkish Airlines
17 Jun - 29 Jun	Turkish Airlines
09 Jun - 30 Jun	Korean Air	direct

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

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 June from $1094

Return flights