Cheapest return flights from Ulaanbaatar to Seoul in April from 259€

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

Return flights

02 Apr - 09 Apr Jeju Air direct
01 Apr - 08 Apr Aero Mongolia direct
18 Apr - 22 Apr Aero Mongolia direct
07 Apr - 14 Apr Jeju Air direct
10 Apr - 19 Apr Korean Air direct
06 Apr - 10 Apr Korean Air direct
13 Apr - 17 Apr Korean Air direct
04 Apr - 11 Apr Korean Air direct
22 Apr - 27 Apr Korean Air direct
28 Apr - 02 May Asiana Airlines direct
26 Apr - 30 Apr Korean Air direct

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