Cheapest one-way flights from Boston to Seoul in September from $459
AirHint found the following cheapest one-way flights from Boston (BOS) to Seoul (ICN) in September 2025 (see full year).
One-Way flights
| 11 Sep | WestJet | ||
| 01 Sep | WestJet | ||
| 05 Sep | WestJet | ||
| 10 Sep | Spirit Airlines | ||
| 09 Sep | Etihad Airways | ||
| 18 Sep | Etihad Airways | ||
| 19 Sep | WestJet | ||
| 10 Sep | Korean Air | direct | |
| 01 Sep | Korean Air | direct | |
| 18 Sep | Delta | direct |
Also check the deals for return flights from Boston to Seoul in September.
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.
