Cheapest return KIX–UBN flights, May

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

Return flights

14 May - 18 May Jeju Air
31 May - 05 Jun Jeju Air
28 May - 01 Jun Jeju Air
24 May - 28 May Jeju Air
14 May - 19 May Jeju Air
28 May - 02 Jun Jeju Air
18 May - 21 May Jeju Air
13 May - 19 May Jeju Air
29 May - 03 Jun Asiana Airlines
16 May - 17 May Jeju Air
09 May - 10 May Jeju Air
29 May - 01 Jun Korean Air
27 May - 30 May Korean Air
15 May - 18 May Korean Air
12 May - 15 May Korean Air

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

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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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