Cheapest return flights from Busan to Ulaanbaatar in October from $153

AirHint found the following cheapest return flights from Busan (PUS) to Ulaanbaatar (UBN) in October 2025 (see full year).

Return flights

01 Oct - 05 Oct Jeju Air direct
12 Oct - 24 Oct Jin Air direct
19 Oct - 24 Oct Jin Air direct
12 Oct - 20 Oct Jin Air direct
09 Oct - 24 Oct Jin Air direct
16 Oct - 24 Oct Jin Air direct
09 Oct - 20 Oct Jin Air direct
16 Oct - 20 Oct Jin Air direct
01 Oct - 06 Oct Jeju Air direct
09 Oct - 13 Oct Jeju Air direct
31 Oct - 02 Nov Korean Air

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

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.

Book a cheap hotel in Ulaanbaatar

Cheap car rent in Ulaanbaatar

Feel free to contact us with any feedback or request another flight research.