Cheapest one-way flights from Bangkok to Ulaanbaatar in September from $201

AirHint found the following cheapest one-way flights from Bangkok (DMK) to Ulaanbaatar (UBN) in September 2025 (see full year).

One-Way flights

17 Sep Thai Lion Air
24 Sep Thai AirAsia
23 Sep Thai AirAsia
27 Sep Thai Lion Air
18 Sep Thai AirAsia
25 Sep Thai AirAsia
26 Sep Thai Lion Air
20 Sep Thai AirAsia
19 Sep Thai AirAsia
28 Sep Thai AirAsia X

Also check the deals for return flights from Bangkok to Ulaanbaatar in September.

Skyscanner

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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