Cheapest return flights from Seoul to Ulaanbaatar in July from $261

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 July 2025 (see full year).

Return flights

13 Jul - 15 Jul Jeju Air direct
06 Jul - 15 Jul Jeju Air direct
07 Jul - 15 Jul Jeju Air direct
07 Jul - 14 Jul Jeju Air direct
06 Jul - 14 Jul Jeju Air direct
06 Jul - 12 Jul Jeju Air direct
07 Jul - 10 Jul Jeju Air direct
07 Jul - 12 Jul Jeju Air direct
06 Jul - 10 Jul Jeju Air direct
12 Jul - 15 Jul Jeju Air direct
11 Jul - 20 Aug T'way Air direct
05 Jul - 19 Aug MIAT Mongolian Airlines direct
18 Jul - 18 Aug T'way Air direct
21 Jul - 04 Aug T'way Air direct
19 Jul - 20 Aug Air China
26 Jul - 04 Aug Air China
26 Jul - 05 Aug Air China
26 Jul - 06 Aug Air China
31 Jul - 07 Aug Air China
29 Jul - 02 Aug Air China

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

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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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