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

One-Way flights

15 Jun	Jin Air	direct
19 Jun	Jeju Air	direct
22 Jun	Jin Air	direct
26 Jun	Jin Air	direct
25 Jun	Jeju Air
29 Jun	Jin Air	direct
23 Jun	Jin Air	direct
21 Jun	Air Busan
30 Jun	Jin Air
17 Jun	Air Busan	direct

Also check the deals for return flights from Busan 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.

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Cheapest one-way flights from Busan to Ulaanbaatar in June from $121

One-Way flights