Cheapest one-way flights from Seoul to Ulaanbaatar in April from $136

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 April 2025 (see full year).

One-Way flights

06 Apr Jeju Air direct
27 Apr Jeju Air direct
15 Apr Jeju Air direct
22 Apr Jeju Air direct
01 Apr Jeju Air direct
29 Apr Jeju Air direct
11 Apr MIAT Mongolian Airlines direct
21 Apr MIAT Mongolian Airlines direct
28 Apr Asiana Airlines direct
30 Apr Asiana Airlines direct

Also check the deals for return flights from Seoul to Ulaanbaatar in April.

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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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