Cheapest return flights from Seoul to Ulaanbaatar in July from $323

AirHint found the following cheapest return flights from Seoul (ICN) to Ulaanbaatar (UBN) in July 2026 (see full year).

Return flights

14 Jul - 21 Jul Aero Mongolia direct
12 Jul - 31 Aug T'way Air direct
15 Jul - 19 Jul MIAT Mongolian Airlines direct
13 Jul - 31 Jul MIAT Mongolian Airlines direct
05 Jul - 08 Jul T'way Air direct
26 Jul - 29 Jul T'way Air direct
12 Jul - 18 Jul MIAT Mongolian Airlines direct
06 Jul - 16 Jul Jeju Air direct
11 Jul - 16 Jul Jeju Air direct
10 Jul - 13 Jul T'way Air direct
18 Jul - 25 Jul MIAT Mongolian Airlines direct
29 Jul - 05 Aug T'way Air direct
06 Jul - 06 Aug Jeju Air direct
14 Jul - 13 Aug Jeju Air direct
28 Jul - 31 Aug Jeju Air direct
31 Jul - 03 Aug T'way Air direct
29 Jul - 01 Aug Asiana Airlines direct
27 Jul - 01 Aug Asiana Airlines direct
25 Jul - 01 Aug Asiana Airlines direct
08 Jul - 03 Aug T'way Air direct

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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