AirHint found the following cheapest one-way flights from Ulaanbaatar (UBN) to Seoul (ICN) in October 2026 (see full year).
One-Way flights
| 02 Oct | MIAT Mongolian Airlines | direct | |
| 01 Oct | Asiana Airlines | direct | |
| 09 Oct | Korean Air | direct | |
| 26 Oct | Korean Air | direct |
Also check the deals for return flights from Ulaanbaatar to Seoul in October.
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