Cheapest return flights from Bangkok to Ulaanbaatar in December from 512€

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

Return flights

06 Dec - 13 Dec Thai VietJet Air
31 Dec - 07 Jan Cathay Pacific
24 Dec - 31 Dec Cathay Pacific
25 Dec - 31 Dec Cathay Pacific
22 Dec - 29 Dec Cathay Pacific
29 Dec - 31 Dec Cathay Pacific
25 Dec - 01 Jan Cathay Pacific
31 Dec - 03 Jan Cathay Pacific
27 Dec - 03 Jan Cathay Pacific
28 Dec - 31 Dec Air China
27 Dec - 02 Jan Cathay Pacific
27 Dec - 05 Jan Air China
28 Dec - 30 Dec Air China

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

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