Cheapest return ICN–UBN flights, August

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

Return flights

30 Aug - 07 Sep Jeju Air direct
30 Aug - 05 Sep Jeju Air direct
30 Aug - 06 Sep Jeju Air direct
04 Aug - 08 Sep Jeju Air direct
29 Aug - 01 Sep Jeju Air direct
30 Aug - 03 Sep Jeju Air direct
24 Aug - 27 Aug MIAT Mongolian Airlines direct
25 Aug - 31 Aug MIAT Mongolian Airlines direct
27 Aug - 05 Sep MIAT Mongolian Airlines direct
17 Aug - 28 Aug MIAT Mongolian Airlines direct
17 Aug - 29 Aug MIAT Mongolian Airlines direct
21 Aug - 26 Aug MIAT Mongolian Airlines direct
19 Aug - 24 Aug MIAT Mongolian Airlines direct
29 Aug - 03 Sep Jeju Air direct
21 Aug - 24 Aug MIAT Mongolian Airlines direct
21 Aug - 28 Aug MIAT Mongolian Airlines direct
18 Aug - 25 Aug MIAT Mongolian Airlines direct
21 Aug - 23 Aug MIAT Mongolian Airlines direct
30 Aug - 02 Sep T'way Air direct
31 Aug - 04 Sep T'way Air direct

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

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