Cheapest return flights from Busan to Ulaanbaatar in September from 110€

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

Return flights

27 Sep - 28 Sep Jeju Air direct
06 Sep - 12 Sep Jeju Air direct
21 Sep - 28 Sep Jeju Air direct
27 Sep - 05 Oct Jeju Air direct
25 Sep - 28 Sep Jeju Air direct
07 Sep - 14 Sep Jin Air direct
11 Sep - 26 Sep Jin Air direct
07 Sep - 26 Sep Jin Air direct
14 Sep - 18 Sep Jeju Air direct
07 Sep - 09 Sep Jin Air direct
21 Sep - 26 Sep Jeju Air direct
27 Sep - 03 Oct Jeju Air direct
28 Sep - 17 Oct Jin Air direct
28 Sep - 13 Oct Jin Air direct
28 Sep - 06 Oct Jin Air direct
21 Sep - 06 Oct Jin Air direct
25 Sep - 13 Oct Jin Air direct
25 Sep - 06 Oct Jin Air direct
18 Sep - 06 Oct Jin Air direct
28 Sep - 12 Oct Jeju Air direct

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

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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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