Cheapest return flights from Busan to Ulaanbaatar in September from $168

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

Return flights

07 Sep - 12 Sep Jin Air direct
07 Sep - 19 Sep Jin Air direct
14 Sep - 19 Sep Jin Air direct
13 Sep - 19 Sep Jeju Air direct
21 Sep - 25 Sep Jeju Air direct
04 Sep - 11 Sep Jeju Air direct
18 Sep - 25 Sep Jeju Air direct
14 Sep - 05 Oct Jeju Air direct
24 Sep - 28 Sep Jeju Air direct
14 Sep - 21 Sep Jeju Air direct
10 Sep - 14 Sep Jeju Air direct
21 Sep - 03 Oct Jeju Air direct
14 Sep - 03 Oct Jin Air direct
18 Sep - 03 Oct Jin Air direct
28 Sep - 06 Oct Jeju Air direct
21 Sep - 06 Oct Jin Air direct
21 Sep - 09 Oct Jeju Air
18 Sep - 06 Oct Jin Air direct
21 Sep - 09 Oct Jeju Air direct
01 Sep - 01 Oct Korean Air

Also check the deals for one-way 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.

Book a cheap hotel in Ulaanbaatar

Cheap car rent in Ulaanbaatar

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