Cheapest one-way flights from Busan to Ulaanbaatar in September from $69

AirHint found the following cheapest one-way flights from Busan (PUS) to Ulaanbaatar (UBN) in September 2025 (see full year).

One-Way flights

27 Sep Jeju Air direct
10 Sep Jeju Air direct
14 Sep Jeju Air direct
21 Sep Jeju Air direct
17 Sep Jeju Air direct
25 Sep Jin Air direct
11 Sep Jin Air direct
20 Sep Jeju Air direct
02 Sep Air China
03 Sep Jeju Air direct

Also check the deals for return flights from Busan 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.

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