Cheapest return flights from Hanoi to Ulaanbaatar in September from 374€

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

Return flights

06 Sep - 10 Sep HK Express
07 Sep - 10 Sep VietJet Air
03 Sep - 10 Sep VietJet Air
26 Sep - 30 Sep Vietnam Airlines
16 Sep - 25 Sep Jeju Air
13 Sep - 20 Sep Jeju Air
16 Sep - 18 Sep Jeju Air
04 Sep - 09 Sep Jeju Air
04 Sep - 17 Sep Air China

Also check the deals for one-way flights from Hanoi 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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