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

Return flights

18 Jun - 25 Jun	Air China
28 Jun - 04 Jul	Air China
18 Jun - 22 Jun	Air China
27 Jun - 03 Jul	Air China
18 Jun - 01 Jul	Air China
16 Jun - 24 Jun	Air China
16 Jun - 23 Jun	Air China
16 Jun - 25 Jun	Air China
19 Jun - 28 Jun	Air China
30 Jun - 14 Jul	Air China
18 Jun - 23 Jun	Air China
22 Jun - 05 Jul	Air China
30 Jun - 08 Jul	Air China
17 Jun - 24 Jun	Air China
28 Jun - 08 Jul	Air China
25 Jun - 30 Jun	Air China
22 Jun - 26 Jun	Air China
28 Jun - 05 Jul	Air China
20 Jun - 13 Jul	Air China
27 Jun - 02 Jul	Air China

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

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

Cheapest return flights from Hong Kong to Ulaanbaatar in June from $373

Return flights