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

Return flights

27 Jan - 03 Feb	Jeju Air	direct
13 Jan - 01 Feb	Jeju Air	direct
18 Jan - 25 Jan	Jeju Air	direct
09 Jan - 16 Jan	Korean Air	direct
09 Jan - 18 Jan	Korean Air	direct
20 Jan - 14 Feb	Asiana Airlines	direct

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

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 Seoul

Cheap car rent in Seoul

Cheapest return flights from Ulaanbaatar to Seoul in January from 252€

Return flights