Cheapest one-way flights from Seoul to Ulaanbaatar in September from 229€

Best time to book flights for Seoul (ICN) to Ulaanbaatar (UBN) flights at AirHint

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

One-Way flights

10 Sep Asiana Airlines direct

Also check the deals for return flights from Seoul 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.

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