| Sile to Orbetello | 949.77 mi (1,528.50 km) |
| Sile to Oria | 627.45 mi (1,009.78 km) |
| Sile to Oristano | 1,104.54 mi (1,777.59 km) |
| Sile to Orta Nova | 721.40 mi (1,160.99 km) |
| Sile to Orte | 889.93 mi (1,432.20 km) |
| Sile to Ortona | 787.14 mi (1,266.78 km) |
| Sile to Orvieto | 904.07 mi (1,454.96 km) |
| Sile to Orzinuovi | 1,028.89 mi (1,655.84 km) |
| Sile to Osimo | 837.75 mi (1,348.23 km) |
| Sile to Ospitaletto | 1,024.04 mi (1,648.04 km) |
| Sile to Ostuni | 627.96 mi (1,010.60 km) |
| Sile to Ottaviano | 788.41 mi (1,268.82 km) |
| Sile to Ovada | 1,084.43 mi (1,745.23 km) |
| Sile to Ozieri | 1,074.89 mi (1,729.87 km) |
| Sile to Paceco | 933.36 mi (1,502.10 km) |
