| Ilirska Bistrica to Oberkirch | 355.25 mi (571.73 km) |
| Ilirska Bistrica to Obernburg am Main | 378.77 mi (609.58 km) |
| Ilirska Bistrica to Obernkirchen | 517.91 mi (833.50 km) |
| Ilirska Bistrica to Oberschleissheim | 224.50 mi (361.30 km) |
| Ilirska Bistrica to Oberstdorf | 227.82 mi (366.64 km) |
| Ilirska Bistrica to Obertraubling | 254.30 mi (409.26 km) |
| Ilirska Bistrica to Obertshausen | 399.58 mi (643.06 km) |
| Ilirska Bistrica to Oberursel | 414.16 mi (666.53 km) |
| Ilirska Bistrica to Ochsenfurt | 342.77 mi (551.63 km) |
| Ilirska Bistrica to Ochsenhausen | 267.06 mi (429.79 km) |
| Ilirska Bistrica to Ochtrup | 559.14 mi (899.85 km) |
| Ilirska Bistrica to Odenthal | 499.71 mi (804.20 km) |
| Ilirska Bistrica to Oelde | 514.22 mi (827.56 km) |
| Ilirska Bistrica to Oelsnitz | 348.59 mi (561.00 km) |
| Ilirska Bistrica to Oer-Erkenschwick | 527.20 mi (848.45 km) |
