| Cities | Distance |
|---|---|
| Opera to Kobarid | 218.29 mi (351.31 km) |
| Opera to Kobilje | 355.72 mi (572.48 km) |
| Opera to Kocevje | 273.73 mi (440.53 km) |
| Opera to Komen | 221.18 mi (355.96 km) |
| Opera to Komenda | 262.58 mi (422.59 km) |
| Opera to Koper | 219.13 mi (352.66 km) |
| Opera to Kostanjevica na Krki | 301.66 mi (485.48 km) |
| Opera to Kostel | 276.06 mi (444.27 km) |
| Opera to Kozje | 309.51 mi (498.11 km) |
| Opera to Kranj | 254.84 mi (410.13 km) |
| Opera to Kranjska Gora | 232.41 mi (374.02 km) |
| Opera to Krizevci | 342.17 mi (550.67 km) |
| Opera to Krsko | 305.02 mi (490.88 km) |
| Opera to Kuzma | 343.71 mi (553.15 km) |
| Opera to Lasko | 295.03 mi (474.80 km) |