Cheapest return flights from Seoul to Ulaanbaatar in September from 278€

AirHint found the following cheapest return flights from Seoul (ICN) to Ulaanbaatar (UBN) in September 2026 (see full year).

Return flights

19 Sep - 26 Sep MIAT Mongolian Airlines direct
19 Sep - 27 Sep MIAT Mongolian Airlines direct
05 Sep - 11 Sep Korean Air direct
20 Sep - 23 Sep Korean Air direct
21 Sep - 26 Sep Korean Air direct
23 Sep - 27 Sep Air China
23 Sep - 26 Sep Korean Air direct
23 Sep - 27 Sep Asiana Airlines direct
24 Sep - 27 Sep Korean Air direct

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

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