Cheapest return flights from Seoul to Ulaanbaatar in September from 168€
AirHint found the following cheapest return flights from Seoul (ICN) to Ulaanbaatar (UBN)
in September 2025 (see full year ).
Return flights
22 Sep
- 28 Sep
Jeju Air
168 €
direct
22 Sep
- 30 Sep
Jeju Air
168 €
direct
02 Sep
- 08 Sep
Jeju Air
176 €
direct
14 Sep
- 21 Sep
Jeju Air
176 €
direct
28 Sep
- 30 Sep
Jeju Air
176 €
direct
22 Sep
- 27 Sep
Jeju Air
182 €
direct
01 Sep
- 13 Sep
Jeju Air
185 €
direct
08 Sep
- 13 Sep
Jeju Air
185 €
direct
09 Sep
- 13 Sep
Jeju Air
185 €
direct
14 Sep
- 20 Sep
Jeju Air
190 €
direct
30 Sep
- 05 Oct
Jeju Air
200 €
direct
29 Sep
- 02 Oct
Jeju Air
209 €
direct
29 Sep
- 14 Oct
Jeju Air
224 €
direct
30 Sep
- 07 Oct
Jeju Air
280 €
direct
07 Sep
- 31 Oct
T'way Air
289 €
direct
29 Sep
- 01 Oct
Asiana Airlines
304 €
direct
30 Sep
- 06 Oct
Asiana Airlines
313 €
direct
30 Sep
- 15 Oct
Asiana Airlines
313 €
direct
27 Sep
- 12 Oct
Jeju Air
323 €
direct
29 Sep
- 13 Oct
Asiana Airlines
348 €
direct
Also check the deals for one-way flights from Seoul to Ulaanbaatar in September .
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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