AirHint found the following cheapest return flights from Busan (PUS) to Ulaanbaatar (UBN) in July 2026 (see full year).

Return flights

04 Jul - 09 Jul	Jeju Air	direct
10 Jul - 14 Jul	Jin Air	direct
17 Jul - 21 Jul	Jin Air	direct
11 Jul - 19 Jul	Jeju Air	direct
08 Jul - 12 Jul	Jeju Air	direct
16 Jul - 20 Jul	Jeju Air	direct
24 Jul - 29 Jul	Asiana Airlines	direct
18 Jul - 20 Jul	Jeju Air	direct
20 Jul - 25 Jul	Jin Air	direct
19 Jul - 23 Jul	Jeju Air	direct
27 Jul - 01 Aug	Jin Air	direct
29 Jul - 03 Aug	Jeju Air	direct
26 Jul - 02 Aug	Jeju Air	direct
29 Jul - 02 Aug	Jeju Air	direct

Also check the deals for one-way flights from Busan to Ulaanbaatar in July.

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 return flights from Busan to Ulaanbaatar in July from 359€

Return flights