Cheapest return flights from Hong Kong to Ulaanbaatar in September from 368€

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

Return flights

20 Sep - 27 Sep HK Express
24 Sep - 01 Oct HK Express
30 Sep - 03 Oct MIAT Mongolian Airlines direct
26 Sep - 02 Oct MIAT Mongolian Airlines direct
30 Sep - 06 Oct Air China
19 Sep - 21 Sep MIAT Mongolian Airlines
30 Sep - 08 Oct Air China
19 Sep - 22 Sep Air China
30 Sep - 05 Oct Air China
30 Sep - 07 Oct Air China
19 Sep - 21 Sep MIAT Mongolian Airlines direct
20 Sep - 27 Sep Cathay Pacific direct
24 Sep - 01 Oct Cathay Pacific direct
19 Sep - 22 Sep MIAT Mongolian Airlines direct
30 Sep - 06 Oct Cathay Pacific direct
30 Sep - 07 Oct Cathay Pacific direct

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

Skyscanner

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.

Book a cheap hotel in Ulaanbaatar

Cheap car rent in Ulaanbaatar

Feel free to contact us with any feedback or request another flight research.