Cheapest one-way flights from Seoul to Ulaanbaatar in April from $154

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

23 Apr Air China
25 Apr Air China
21 Apr Air China
14 Apr Air China
15 Apr Air China
16 Apr Air China
05 Apr Aero Mongolia direct
13 Apr Air China
20 Apr Jeju Air direct
15 Apr Jeju Air 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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