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

Return flights

16 Dec - 21 Dec	Asiana Airlines
04 Dec - 08 Dec	Air China
02 Dec - 08 Dec	Air China
19 Dec - 21 Dec	Air China
01 Dec - 05 Dec	Air China
02 Dec - 09 Dec	Air China
17 Dec - 21 Dec	Asiana Airlines
04 Dec - 11 Dec	Air China
02 Dec - 10 Dec	Air China
10 Dec - 13 Dec	Air China
31 Dec - 04 Jan	Asiana Airlines
27 Dec - 01 Jan	Asiana Airlines
30 Dec - 02 Jan	Air China
26 Dec - 04 Jan	Korean Air
30 Dec - 03 Jan	Korean Air
31 Dec - 03 Jan	Korean Air
25 Dec - 02 Jan	Korean Air
29 Dec - 03 Jan	Korean Air
28 Dec - 03 Jan	Korean Air
27 Dec - 02 Jan	Korean Air

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

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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Cheapest return flights from Tokyo to Ulaanbaatar in December from $477

Return flights