Cheapest return flights from Boston to Seoul in August from $824

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

Return flights

26 Aug - 11 Sep Cathay Pacific
28 Aug - 14 Sep Cathay Pacific
29 Aug - 08 Sep Cathay Pacific
29 Aug - 09 Sep Cathay Pacific
28 Aug - 07 Sep Cathay Pacific
19 Aug - 09 Sep Cathay Pacific
30 Aug - 09 Sep Air Canada
23 Aug - 04 Sep Cathay Pacific
22 Aug - 04 Sep Cathay Pacific
20 Aug - 03 Sep American Airlines
23 Aug - 30 Aug Air Canada
19 Aug - 26 Aug Cathay Pacific
23 Aug - 31 Aug Frontier Airlines
21 Aug - 28 Aug Spirit Airlines
19 Aug - 28 Aug Spirit Airlines
22 Aug - 29 Aug Cathay Pacific
20 Aug - 23 Aug Hawaiian Airlines
23 Aug - 31 Aug Korean Air direct
19 Aug - 26 Aug Korean Air direct
21 Aug - 28 Aug Korean Air direct

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

Skyscanner

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Feel free to contact us with any feedback or request another flight research.