AirHint found the following cheapest return flights from Ho Chi Minh City (SGN) to Ulaanbaatar (UBN) in August 2025 (see full year).

Return flights

09 Aug - 16 Aug	VietJet Air
09 Aug - 15 Aug	VietJet Air
29 Aug - 06 Sep	Cathay Pacific
09 Aug - 19 Aug	Cathay Pacific
08 Aug - 15 Aug	Cathay Pacific
23 Aug - 30 Aug	Cathay Pacific
06 Aug - 15 Aug	Cathay Pacific
13 Aug - 20 Aug	Air China

Also check the deals for one-way flights from Ho Chi Minh City to Ulaanbaatar in August.

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 Ho Chi Minh City to Ulaanbaatar in August from $621

Return flights