Cheapest return flights from Sydney to Ulaanbaatar in April from $908

Best time to book flights for Sydney (SYD) to Ulaanbaatar (UBN) flights at AirHint

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

Return flights

27 Apr - 24 May Air China
22 Apr - 06 May Cathay Pacific
06 Apr - 04 May VietJet Air
23 Apr - 30 Apr Cathay Pacific
16 Apr - 16 May Cathay Pacific
15 Apr - 22 Apr Cathay Pacific
19 Apr - 30 Apr Qantas
06 Apr - 13 Apr Korean Air
09 Apr - 16 Apr Korean Air
08 Apr - 15 Apr Korean Air
17 Apr - 02 May Cathay Pacific
21 Apr - 28 Apr Korean Air
10 Apr - 17 Apr Qantas

Also check the deals for one-way flights from Sydney to Ulaanbaatar in April.

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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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