Cheapest one-way flights from Seoul to Ulaanbaatar in July from $148

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

AirHint found the following cheapest one-way flights from Seoul (ICN) to Ulaanbaatar (UBN) in July 2025 (see full year).

One-Way flights

15 Jul Jeju Air direct
13 Jul Jeju Air direct
06 Jul Jeju Air direct
07 Jul Jeju Air direct
01 Jul Jeju Air direct
20 Jul Jeju Air direct
08 Jul Jeju Air direct
14 Jul Jeju Air direct
11 Jul T'way Air direct
16 Jul T'way Air direct

Also check the deals for return 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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