Cheapest return flights from Ulaanbaatar to Seoul in April from 230€

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

Return flights

12 Apr - 19 Apr Asiana Airlines direct
13 Apr - 20 Apr Aero Mongolia direct
15 Apr - 22 Apr Aero Mongolia direct
09 Apr - 16 Apr Aero Mongolia direct
02 Apr - 19 Apr Jeju Air direct
07 Apr - 14 Apr Jeju Air direct
18 Apr - 22 Apr Aero Mongolia direct
11 Apr - 19 Apr MIAT Mongolian Airlines direct
06 Apr - 11 Apr Korean Air direct
10 Apr - 17 Apr Korean Air direct

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

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