Cheapest return HKG–UBN flights, September

AirHint found the following cheapest return flights from Hong Kong (HKG) to Ulaanbaatar (UBN) in September 2026 (see full year).

Return flights

05 Sep - 13 Sep T'way Air
05 Sep - 13 Sep MIAT Mongolian Airlines direct
25 Sep - 03 Oct MIAT Mongolian Airlines direct
10 Sep - 18 Sep HK Express
19 Sep - 22 Sep HK Express
11 Sep - 20 Sep HK Express
11 Sep - 22 Sep HK Express
19 Sep - 22 Sep Cathay Pacific direct
26 Sep - 03 Oct Cathay Pacific direct
10 Sep - 18 Sep Cathay Pacific direct
11 Sep - 22 Sep Cathay Pacific direct
11 Sep - 20 Sep Cathay Pacific direct

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

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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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