Cheapest return flights from Seoul to Ulaanbaatar in October from 178€

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

Return flights

16 Oct - 06 Nov Jeju Air direct
16 Oct - 30 Oct Jeju Air direct
16 Oct - 28 Oct Jeju Air direct
28 Oct - 04 Nov Jeju Air direct
30 Oct - 13 Nov Jeju Air direct
23 Oct - 30 Oct Jeju Air direct
21 Oct - 30 Oct Jeju Air direct
19 Oct - 30 Oct Jeju Air direct
30 Oct - 06 Nov Jeju Air direct
30 Oct - 04 Nov Jeju Air direct
21 Oct - 28 Oct Jeju Air direct
30 Oct - 11 Nov Jeju Air direct
22 Oct - 29 Oct Air China
30 Oct - 09 Nov Jeju Air direct
29 Oct - 04 Nov Air China
28 Oct - 30 Oct Jeju Air direct
30 Oct - 02 Nov Jeju Air direct
15 Oct - 22 Oct Aero Mongolia direct
17 Oct - 22 Oct Air China
26 Oct - 02 Nov Jeju Air direct

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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