| Ilirska Bistrica to Noventa Vicentina | 133.32 mi (214.56 km) |
| Ilirska Bistrica to Novi di Modena | 169.60 mi (272.95 km) |
| Ilirska Bistrica to Novi Ligure | 272.08 mi (437.87 km) |
| Ilirska Bistrica to Nuoro | 439.75 mi (707.70 km) |
| Ilirska Bistrica to Occhiobello | 137.41 mi (221.14 km) |
| Ilirska Bistrica to Oderzo | 86.23 mi (138.77 km) |
| Ilirska Bistrica to Oggiono | 237.12 mi (381.60 km) |
| Ilirska Bistrica to Olbia | 400.46 mi (644.48 km) |
| Ilirska Bistrica to Oleggio | 271.68 mi (437.23 km) |
| Ilirska Bistrica to Olgiate Comasco | 255.58 mi (411.31 km) |
| Ilirska Bistrica to Olgiate Olona | 259.56 mi (417.71 km) |
| Ilirska Bistrica to Omegna | 282.73 mi (455.01 km) |
| Ilirska Bistrica to Opera | 244.28 mi (393.13 km) |
| Ilirska Bistrica to Oppeano | 149.96 mi (241.33 km) |
| Ilirska Bistrica to Orbassano | 328.65 mi (528.91 km) |
