Cheapest return flights from Seoul to Ulaanbaatar in July from $278

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

Return flights

01 Jul - 16 Jul Aero Mongolia direct
28 Jul - 08 Aug Aero Mongolia direct
22 Jul - 03 Aug Aero Mongolia direct
31 Jul - 08 Aug Aero Mongolia direct
13 Jul - 17 Jul T'way Air direct
23 Jul - 29 Jul Aero Mongolia direct
06 Jul - 17 Jul T'way Air direct
24 Jul - 29 Jul Aero Mongolia direct
06 Jul - 13 Jul T'way Air direct
05 Jul - 10 Jul T'way Air direct
01 Jul - 06 Jul T'way Air direct
03 Jul - 05 Jul T'way Air direct
13 Jul - 19 Jul T'way Air direct
12 Jul - 27 Aug Jeju Air direct
31 Jul - 07 Aug MIAT Mongolian Airlines direct
28 Jul - 02 Aug Asiana Airlines direct
22 Jul - 09 Aug Asiana Airlines direct
27 Jul - 01 Aug Asiana Airlines direct
24 Jul - 01 Aug Asiana Airlines direct
25 Jul - 01 Aug Asiana Airlines 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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