Cheapest one-way flights from Seoul to Ulaanbaatar in April from $288

AirHint found the following cheapest one-way flights from Seoul (GMP) to Ulaanbaatar (UBN) in April 2026 (see full year).

One-Way flights

20 Apr Air China
27 Apr ANA

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

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.

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