Cheapest return flights from Seoul to Ulaanbaatar in May from 236€

Best time to book flights for Seoul (ICN) to Ulaanbaatar (UBN) flights at AirHint

AirHint found the following cheapest return flights from Seoul (ICN) to Ulaanbaatar (UBN) in May 2025 (see full year).

Return flights

25 May - 29 May Jeju Air direct
08 May - 22 May Jeju Air direct
13 May - 22 May Jeju Air direct
08 May - 15 May Jeju Air direct
08 May - 13 May Jeju Air direct
15 May - 20 May Jeju Air direct
18 May - 20 May Jeju Air direct
22 May - 25 May Jeju Air direct
11 May - 18 May Jeju Air direct
29 May - 02 Jun Jeju Air direct
29 May - 03 Jun Jeju Air direct
15 May - 05 Jun Jeju Air direct
29 May - 05 Jun Jeju Air direct
25 May - 24 Jun Jeju Air direct
26 May - 01 Jun MIAT Mongolian Airlines direct
09 May - 14 May Asiana Airlines direct
30 May - 02 Jun Asiana Airlines direct
26 May - 25 Jun Korean Air direct
31 May - 04 Jun Korean Air direct
31 May - 05 Jun Korean Air direct

Also check the deals for one-way flights from Seoul 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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