Cheapest return flights from Sydney to Ulaanbaatar in December from 997€

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

Return flights

26 Dec - 16 Jan Air China
26 Dec - 23 Jan Air China
25 Dec - 16 Jan Air China
25 Dec - 15 Jan Air China
22 Dec - 03 Jan Air China
22 Dec - 04 Jan Air China
19 Dec - 04 Jan Air China
19 Dec - 03 Jan Air China
20 Dec - 10 Jan Air China
21 Dec - 10 Jan Air China

Also check the deals for one-way flights from Sydney 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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