Cheapest return flights from Seoul to Ulaanbaatar in October from 370€

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

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

Return flights

06 Oct - 10 Oct Korean Air direct
02 Oct - 13 Oct Korean Air direct
01 Oct - 15 Oct Korean Air direct
06 Oct - 12 Oct Korean Air direct
06 Oct - 11 Oct Korean Air direct
08 Oct - 11 Oct Korean Air direct
02 Oct - 12 Oct Korean Air direct
02 Oct - 08 Oct MIAT Mongolian Airlines direct
06 Oct - 09 Oct Korean Air direct
02 Oct - 09 Oct Korean Air direct

Also check the deals for one-way 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.

Book a cheap hotel in Ulaanbaatar

Cheap car rent in Ulaanbaatar