AirHint found the following cheapest return flights from Seoul (ICN) to Ulaanbaatar (UBN)
in May 2025 (see full year ).
Return flights
13 May
- 15 May
Jeju Air
$ 138
direct
18 May
- 20 May
Jeju Air
$ 138
direct
13 May
- 20 May
Jeju Air
$ 138
direct
11 May
- 15 May
Jeju Air
$ 167
direct
11 May
- 20 May
Jeju Air
$ 168
direct
13 May
- 18 May
Jeju Air
$ 169
direct
18 May
- 29 May
Jeju Air
$ 176
direct
25 May
- 27 May
Jeju Air
$ 176
direct
25 May
- 01 Jun
Jeju Air
$ 176
direct
25 May
- 29 May
Jeju Air
$ 177
direct
18 May
- 22 May
Jeju Air
$ 177
direct
25 May
- 05 Jun
Jeju Air
$ 183
direct
27 May
- 03 Jun
Jeju Air
$ 191
direct
29 May
- 02 Jun
Jeju Air
$ 215
direct
27 May
- 01 Jun
Jeju Air
$ 220
direct
22 May
- 01 Jun
Jeju Air
$ 221
direct
29 May
- 01 Jun
Jeju Air
$ 221
direct
29 May
- 05 Jun
Jeju Air
$ 229
direct
29 May
- 03 Jun
Jeju Air
$ 234
direct
29 May
- 08 Jun
Jeju Air
$ 251
direct
Also check the deals for one-way flights from Seoul to Ulaanbaatar in May .
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.