Cheapest return flights from Seoul to Ulaanbaatar in July from $321

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

05 Jul - 06 Jul Jeju Air direct
06 Jul - 08 Jul Jeju Air direct
06 Jul - 10 Jul Jeju Air direct
08 Jul - 10 Jul Jeju Air direct
08 Jul - 21 Jul Jeju Air direct
06 Jul - 21 Jul Jeju Air direct
01 Jul - 07 Jul Jeju Air direct
06 Jul - 15 Jul Jeju Air direct
01 Jul - 06 Jul Jeju Air direct
01 Jul - 10 Jul Jeju Air direct
05 Jul - 18 Aug Jeju Air direct
22 Jul - 12 Aug Jeju Air direct
13 Jul - 05 Aug MIAT Mongolian Airlines
15 Jul - 07 Aug MIAT Mongolian Airlines direct
13 Jul - 05 Aug MIAT Mongolian Airlines direct
15 Jul - 20 Aug MIAT Mongolian Airlines direct
29 Jul - 12 Aug Jeju Air direct
15 Jul - 12 Aug Jeju Air direct
28 Jul - 02 Aug Aero Mongolia direct
26 Jul - 01 Aug MIAT Mongolian Airlines direct

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

Skyscanner

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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