Cheapest one-way flights from Ulaanbaatar to Bangkok in December from $226

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

One-Way flights

28 Dec China Eastern
29 Dec China United Airlines
31 Dec Aero Mongolia
30 Dec Jeju Air
24 Dec Air China
25 Dec Air China
06 Dec Korean Air
13 Dec Korean Air
31 Dec MIAT Mongolian Airlines direct
19 Dec Korean Air

Also check the deals for return flights from Ulaanbaatar to Bangkok 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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