| Caltanissetta to Navodari | 892.50 mi (1,436.33 km) |
| Caltanissetta to Negresti-Oas | 859.04 mi (1,382.50 km) |
| Caltanissetta to Nehoiu | 833.48 mi (1,341.35 km) |
| Caltanissetta to Ocna Mures | 793.50 mi (1,277.01 km) |
| Caltanissetta to Odobesti | 880.09 mi (1,416.36 km) |
| Caltanissetta to Odorheiu Secuiesc | 838.45 mi (1,349.35 km) |
| Caltanissetta to Oltenita | 798.82 mi (1,285.58 km) |
| Caltanissetta to Onesti | 889.25 mi (1,431.11 km) |
| Caltanissetta to Oradea | 773.47 mi (1,244.78 km) |
| Caltanissetta to Orastie | 744.64 mi (1,198.38 km) |
| Caltanissetta to Oravita | 654.22 mi (1,052.86 km) |
| Caltanissetta to Orsova | 661.17 mi (1,064.05 km) |
| Caltanissetta to Otelu Rosu | 700.40 mi (1,127.19 km) |
| Caltanissetta to Otopeni | 792.14 mi (1,274.83 km) |
| Caltanissetta to Ovidiu | 888.55 mi (1,429.98 km) |
