Cheapest return flights from Seoul to Ulaanbaatar in April from 199€

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

Return flights

12 Apr - 23 Apr Jeju Air direct
12 Apr - 14 Apr Jeju Air direct
19 Apr - 21 Apr Jeju Air direct
19 Apr - 23 Apr Jeju Air direct
02 Apr - 14 Apr Jeju Air direct
02 Apr - 12 Apr Jeju Air direct
16 Apr - 23 Apr Jeju Air direct
14 Apr - 16 Apr Jeju Air direct
09 Apr - 16 Apr Jeju Air direct
14 Apr - 21 Apr Jeju Air direct
23 Apr - 07 May Jeju Air direct
19 Apr - 03 May Jeju Air direct
28 Apr - 03 May Jeju Air direct
25 Apr - 02 May MIAT Mongolian Airlines direct
30 Apr - 04 May Aero Mongolia direct
26 Apr - 03 May MIAT Mongolian Airlines direct
27 Apr - 04 May MIAT Mongolian Airlines direct
18 Apr - 03 May Asiana Airlines direct
25 Apr - 03 May Asiana Airlines direct
24 Apr - 02 May Korean Air direct

Also check the deals for one-way 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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