| Develi to Orbetello | 1,302.80 mi (2,096.65 km) |
| Develi to Oria | 962.30 mi (1,548.68 km) |
| Develi to Oristano | 1,439.80 mi (2,317.14 km) |
| Develi to Orta Nova | 1,066.18 mi (1,715.85 km) |
| Develi to Orte | 1,243.29 mi (2,000.88 km) |
| Develi to Ortona | 1,140.32 mi (1,835.16 km) |
| Develi to Orvieto | 1,258.99 mi (2,026.14 km) |
| Develi to Orzinuovi | 1,393.73 mi (2,242.99 km) |
| Develi to Osimo | 1,197.41 mi (1,927.05 km) |
| Develi to Ospitaletto | 1,389.23 mi (2,235.75 km) |
| Develi to Ostuni | 965.87 mi (1,554.42 km) |
| Develi to Ottaviano | 1,128.53 mi (1,816.19 km) |
| Develi to Ovada | 1,446.92 mi (2,328.59 km) |
| Develi to Ozieri | 1,415.27 mi (2,277.65 km) |
| Develi to Paceco | 1,243.06 mi (2,000.51 km) |
