AirHint found the following cheapest one-way flights from Seoul (ICN) to Boston (BOS) in April 2026 (see full year).
One-Way flights
| 28 Apr | Jeju Air | ||
| 29 Apr | Air Premia | ||
| 27 Apr | Jeju Air | ||
| 10 Apr | Korean Air | ||
| 22 Apr | Air Canada | ||
| 11 Apr | Qatar Airways | ||
| 24 Apr | Delta | ||
| 29 Apr | Korean Air | direct | |
| 10 Apr | Korean Air | direct | |
| 28 Apr | Korean Air | direct |
Also check the deals for return flights from Seoul to Boston in April.
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