| Casalpusterlengo to Oria | 517.31 mi (832.52 km) |
| Casalpusterlengo to Oristano | 368.21 mi (592.58 km) |
| Casalpusterlengo to Orta Nova | 404.38 mi (650.78 km) |
| Casalpusterlengo to Orte | 232.05 mi (373.44 km) |
| Casalpusterlengo to Ortona | 307.07 mi (494.19 km) |
| Casalpusterlengo to Orvieto | 209.40 mi (336.99 km) |
| Casalpusterlengo to Orzinuovi | 20.62 mi (33.19 km) |
| Casalpusterlengo to Osimo | 222.68 mi (358.36 km) |
| Casalpusterlengo to Ospitaletto | 33.20 mi (53.44 km) |
| Casalpusterlengo to Ostuni | 504.81 mi (812.41 km) |
| Casalpusterlengo to Ottaviano | 385.72 mi (620.75 km) |
| Casalpusterlengo to Ovada | 61.62 mi (99.16 km) |
| Casalpusterlengo to Ozieri | 319.02 mi (513.41 km) |
| Casalpusterlengo to Paceco | 519.10 mi (835.41 km) |
| Casalpusterlengo to Pachino | 649.73 mi (1,045.64 km) |
