Cheapest return flights from Busan to Ulaanbaatar in August from $427

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

Return flights

27 Aug - 30 Aug Jeju Air direct
16 Aug - 20 Aug Jeju Air direct
09 Aug - 13 Aug Korean Air
02 Aug - 08 Aug Korean Air
09 Aug - 14 Aug Korean Air
09 Aug - 13 Aug Jeju Air direct
09 Aug - 14 Aug Jeju Air direct
01 Aug - 07 Aug Jeju Air direct
03 Aug - 11 Aug Jin Air direct
12 Aug - 16 Aug Jeju Air direct

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

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