Cheapest return flights from Phnom-penh to Ulaanbaatar in September from 612€
AirHint found the following cheapest return flights from Phnom-penh (PNH) to Ulaanbaatar (UBN) in September 2025 (see full year).
Return flights
| 07 Sep - 14 Sep | Sky Angkor | ||
| 21 Sep - 28 Sep | Sky Angkor |
Also check the deals for one-way 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.
