AirHint found the following cheapest one-way flights from Ulaanbaatar (UBN) to Seoul (ICN) in August 2026 (see full year).
One-Way flights
| 12 Aug | T'way Air | direct | |
| 15 Aug | Asiana Airlines | direct | |
| 30 Aug | Asiana Airlines | direct | |
| 03 Aug | Korean Air | direct | |
| 09 Aug | T'way Air | direct |
Also check the deals for return flights from Ulaanbaatar to Seoul in August.
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