Cheapest return GMP–UBN flights, September

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

Return flights

16 Sep - 20 Sep Air China
07 Sep - 14 Sep Air China
17 Sep - 20 Sep Air China
11 Sep - 16 Sep Air China
11 Sep - 15 Sep Air China
10 Sep - 14 Sep Air China
15 Sep - 21 Sep Air China
13 Sep - 18 Sep Air China
03 Sep - 10 Sep Air Busan
03 Sep - 11 Sep Air China
04 Sep - 18 Oct Air China
28 Sep - 02 Oct Air China
29 Sep - 06 Oct Air China

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

На базе

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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