AirHint found the following cheapest return flights from Boston (BOS) to Seoul (ICN) in August 2026 (see full year).
Return flights
| 03 Aug - 10 Aug | Cathay Pacific | ||
| 12 Aug - 28 Aug | Alaska Airlines | ||
| 02 Aug - 28 Aug | Etihad Airways | ||
| 12 Aug - 28 Aug | Korean Air | direct | |
| 03 Aug - 10 Aug | Delta | direct |
Also check the deals for one-way flights from Boston to Seoul in August.
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