Cheapest return flights from Seoul to Ulaanbaatar in August from $581

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

Return flights

13 Aug - 17 Aug Air China
08 Aug - 12 Aug Air China
21 Aug - 24 Aug Air China
23 Aug - 26 Aug Air China
03 Aug - 07 Aug Air China
21 Aug - 31 Aug Air China
24 Aug - 31 Aug Air China
25 Aug - 31 Aug Air China
07 Aug - 13 Aug Air China
23 Aug - 29 Aug Air China
30 Aug - 05 Sep Air China
29 Aug - 06 Sep Air China
30 Aug - 06 Sep Air China

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

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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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