Cheapest one-way flights from Seoul to Ulaanbaatar in October from $110

AirHint found the following cheapest one-way flights from Seoul (ICN) to Ulaanbaatar (UBN) in October 2025 (see full year).

One-Way flights

19 Oct Jeju Air direct
09 Oct Jeju Air direct
07 Oct Jeju Air direct
08 Oct MIAT Mongolian Airlines direct
27 Oct MIAT Mongolian Airlines direct
15 Oct MIAT Mongolian Airlines direct
05 Oct MIAT Mongolian Airlines direct
06 Oct Asiana Airlines direct
11 Oct Air China

Also check the deals for return flights from Seoul 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.

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