Cheapest return flights from Seoul to Ulaanbaatar in May from 276€

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

Return flights

23 May - 26 May Asiana Airlines direct
02 May - 05 May Asiana Airlines direct
06 May - 10 May Asiana Airlines direct
30 May - 07 Jun Asiana Airlines direct
27 May - 31 May Asiana Airlines direct
09 May - 27 May MIAT Mongolian Airlines direct
04 May - 11 May Korean Air direct
21 May - 24 May Korean Air direct
28 May - 30 May Korean Air direct
27 May - 30 May Korean Air direct
10 May - 15 May Korean Air direct
25 May - 01 Jun Korean Air direct

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

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