Cheapest return flights from Boston to Seoul in August from $879

Best time to book flights for Boston (BOS) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Seoul (ICN) in August 2025 (see full year).

Return flights

27 Aug - 10 Sep Cathay Pacific
28 Aug - 11 Sep Cathay Pacific
28 Aug - 19 Sep Cathay Pacific
30 Aug - 14 Sep WestJet
12 Aug - 27 Aug WestJet
16 Aug - 01 Sep WestJet
22 Aug - 05 Sep jetBlue
18 Aug - 01 Sep jetBlue
05 Aug - 19 Aug Alaska Airlines
03 Aug - 31 Aug WestJet
18 Aug - 29 Aug WestJet
03 Aug - 15 Aug WestJet
26 Aug - 01 Sep Cathay Pacific
14 Aug - 26 Aug United
11 Aug - 21 Aug United
07 Aug - 14 Aug United
14 Aug - 25 Aug Alaska Airlines
02 Aug - 05 Aug United
28 Aug - 19 Sep Delta direct
15 Aug - 06 Sep Alaska Airlines

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

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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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