Cheapest one-way flights from Seoul to Ulaanbaatar in December from 157€
AirHint found the following cheapest one-way flights from Seoul (ICN) to Ulaanbaatar (UBN) in December 2025 (see full year).
One-Way flights
| 01 Dec | MIAT Mongolian Airlines | direct | |
| 08 Dec | MIAT Mongolian Airlines | direct |
Also check the deals for return flights from Seoul to Ulaanbaatar in December.
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.
