Cheapest return flights from Seoul (ICN) to Ulaanbaatar (UBN), May

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
31 May 08 Jun Jeju Air
Direct Flight
31 May 04 Jun Jeju Air
Direct Flight
27 May 03 Jun Aero Mongolia
Direct Flight
26 May 02 Jun MIAT Mongolian Airlines
Direct Flight
25 May 01 Jun Aero Mongolia
Direct Flight
31 May 02 Jun Jeju Air
Direct Flight
31 May 06 Jun Jeju Air
Direct Flight
28 May 04 Jun Jeju Air
Direct Flight
30 May 05 Jun Korean Air
Direct Flight
29 May 08 Jun Korean Air
Direct Flight
26 May 31 May Jeju Air
Direct Flight
26 May 28 May Jeju Air
Direct Flight
25 May 30 May Aero Mongolia
Direct Flight
24 May 31 May MIAT Mongolian Airlines
Direct Flight
28 May 31 May Jeju Air
Direct Flight
29 May 31 May Korean Air
Direct Flight
23 May 30 May MIAT Mongolian Airlines
Direct Flight
28 May 30 May Korean Air
Direct Flight
24 May 30 May Korean Air
Direct Flight
21 May 28 May MIAT Mongolian Airlines
Direct Flight
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Updated May 20, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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