Cheapest return flights from Hong Kong to Ulaanbaatar in December from 390€

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

Return flights

20 Dec - 04 Jan MIAT Mongolian Airlines
08 Dec - 15 Dec MIAT Mongolian Airlines
31 Dec - 05 Jan MIAT Mongolian Airlines
29 Dec - 02 Jan Air China
08 Dec - 15 Dec MIAT Mongolian Airlines direct
23 Dec - 28 Dec MIAT Mongolian Airlines direct
29 Dec - 02 Jan Cathay Pacific direct
20 Dec - 04 Jan Cathay Pacific direct

Also check the deals for one-way flights from Hong Kong to Ulaanbaatar 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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