Cheapest return flights from Seoul to Ulaanbaatar in September from 203€
AirHint found the following cheapest return flights from Seoul (ICN) to Ulaanbaatar (UBN)
in September 2025 (see full year ).
Return flights
28 Sep
- 30 Sep
Jeju Air
203 €
direct
23 Sep
- 25 Sep
Jeju Air
203 €
direct
23 Sep
- 27 Sep
Jeju Air
203 €
direct
22 Sep
- 30 Sep
Jeju Air
203 €
direct
29 Sep
- 14 Oct
Jeju Air
204 €
direct
22 Sep
- 27 Sep
Jeju Air
205 €
direct
22 Sep
- 25 Sep
Jeju Air
205 €
direct
28 Sep
- 05 Oct
Jeju Air
207 €
direct
29 Sep
- 28 Oct
Jeju Air
209 €
direct
22 Sep
- 26 Sep
T'way Air
228 €
direct
28 Sep
- 02 Oct
Jeju Air
228 €
direct
21 Sep
- 26 Sep
T'way Air
230 €
direct
14 Sep
- 18 Sep
Jeju Air
235 €
direct
15 Sep
- 20 Sep
Jeju Air
235 €
direct
30 Sep
- 05 Oct
Jeju Air
251 €
direct
30 Sep
- 14 Oct
Jeju Air
253 €
direct
22 Sep
- 07 Oct
Jeju Air
287 €
direct
28 Sep
- 07 Oct
Jeju Air
287 €
direct
08 Sep
- 02 Oct
Jeju Air
300 €
direct
22 Sep
- 20 Oct
Air China
327 €
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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