Cheapest return flights from Seoul to Ulaanbaatar in October from 342€

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

Return flights

12 Oct - 13 Oct Air Busan
23 Oct - 30 Oct T'way Air
12 Oct - 16 Oct Korean Air
11 Oct - 13 Oct Air Busan
23 Oct - 26 Oct Air China
23 Oct - 28 Oct Air China
13 Oct - 16 Oct Air China
01 Oct - 06 Oct Air China
05 Oct - 13 Oct Air China
15 Oct - 19 Oct Air China

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

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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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