AirHint found the following cheapest one-way flights from Phnom-penh (PNH) to Ulaanbaatar (UBN) in September 2025 (see full year).
One-Way flights
| 28 Sep | Thai VietJet Air | ||
| 21 Sep | Air China | ||
| 20 Sep | Korean Air |
Also check the deals for return flights from Phnom-penh to Ulaanbaatar in September.
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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