| Caltanissetta to Opwijk | 1,049.62 mi (1,689.19 km) |
| Caltanissetta to Ostend | 1,094.34 mi (1,761.17 km) |
| Caltanissetta to Oud-Heverlee | 1,030.92 mi (1,659.11 km) |
| Caltanissetta to Oud-Turnhout | 1,053.32 mi (1,695.15 km) |
| Caltanissetta to Oudenaarde | 1,056.34 mi (1,700.02 km) |
| Caltanissetta to Oudenburg | 1,089.95 mi (1,754.11 km) |
| Caltanissetta to Oupeye | 1,002.73 mi (1,613.74 km) |
| Caltanissetta to Overijse | 1,030.90 mi (1,659.07 km) |
| Caltanissetta to Overpelt | 1,038.44 mi (1,671.21 km) |
| Caltanissetta to Paal | 1,032.55 mi (1,661.73 km) |
| Caltanissetta to Peer | 1,032.56 mi (1,661.74 km) |
| Caltanissetta to Pepinster | 990.54 mi (1,594.13 km) |
| Caltanissetta to Peruwelz | 1,037.54 mi (1,669.76 km) |
| Caltanissetta to Perwez | 1,015.17 mi (1,633.76 km) |
| Caltanissetta to Philippeville | 996.05 mi (1,602.99 km) |
