AirHint found the following cheapest return flights from Seoul (ICN) to Bucharest (OTP) in September 2026 (see full year).
Return flights
| 24 Sep - 09 Oct | Etihad Airways | ||
| 18 Sep - 21 Oct | Emirates | ||
| 25 Sep - 10 Oct | Singapore Airlines | ||
| 25 Sep - 09 Oct | Lufthansa | ||
| 24 Sep - 10 Oct | LOT |
Also check the deals for one-way flights from Seoul to Bucharest in September.
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