AirHint found the following cheapest one-way flights from Ulaanbaatar (UBN) to Hanoi (HAN) in December 2025 (see full year).
One-Way flights
| 15 Dec | China United Airlines | ||
| 16 Dec | Jeju Air | ||
| 15 Dec | Aero Mongolia | direct | |
| 18 Dec | Jeju Air | ||
| 23 Dec | Jeju Air | ||
| 17 Dec | Air China | ||
| 19 Dec | Korean Air | ||
| 22 Dec | Korean Air |
Also check the deals for return flights from Ulaanbaatar to Hanoi in December.
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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.
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