| Palo del Colle to Orbetello | 298.67 mi (480.66 km) |
| Palo del Colle to Oria | 61.88 mi (99.58 km) |
| Palo del Colle to Oristano | 433.25 mi (697.25 km) |
| Palo del Colle to Orta Nova | 54.94 mi (88.42 km) |
| Palo del Colle to Orte | 242.73 mi (390.63 km) |
| Palo del Colle to Ortona | 148.81 mi (239.48 km) |
| Palo del Colle to Orvieto | 262.68 mi (422.74 km) |
| Palo del Colle to Orzinuovi | 454.01 mi (730.66 km) |
| Palo del Colle to Osimo | 235.16 mi (378.45 km) |
| Palo del Colle to Ospitaletto | 455.69 mi (733.37 km) |
| Palo del Colle to Ostuni | 51.06 mi (82.18 km) |
| Palo del Colle to Ottaviano | 116.80 mi (187.97 km) |
| Palo del Colle to Ovada | 477.11 mi (767.83 km) |
| Palo del Colle to Ozieri | 403.61 mi (649.54 km) |
| Palo del Colle to Paceco | 306.24 mi (492.84 km) |
