AirHint found the following cheapest return flights from Kuala Lumpur (KUL) to Ulaanbaatar (UBN) in December 2025 (see full year).
Return flights
| 01 Dec - 06 Dec | Xiamen Airlines | ||
| 16 Dec - 23 Dec | AirAsia | ||
| 01 Dec - 09 Dec | Korean Air | ||
| 05 Dec - 10 Dec | Korean Air | ||
| 05 Dec - 08 Dec | Korean Air | ||
| 12 Dec - 17 Dec | Air China | ||
| 30 Dec - 06 Jan | Korean Air |
Also check the deals for one-way flights from Kuala Lumpur to Ulaanbaatar in December.
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