Cheapest return flights from Bangkok to Ulaanbaatar in December from 398€

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

Return flights

17 Dec - 21 Dec HK Express
20 Dec - 24 Dec Shandong Airlines
17 Dec - 28 Dec MIAT Mongolian Airlines
24 Dec - 28 Dec MIAT Mongolian Airlines
20 Dec - 24 Dec MIAT Mongolian Airlines direct
19 Dec - 28 Dec Greater Bay Airlines
15 Dec - 18 Dec Air China
06 Dec - 10 Dec Air China
27 Dec - 31 Dec Air China
17 Dec - 20 Dec Air China

Also check the deals for one-way flights from Bangkok to Ulaanbaatar in December.

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.

Book a cheap hotel in Ulaanbaatar

Cheap car rent in Ulaanbaatar

Feel free to contact us with any feedback or request another flight research.