| Priolo Gargallo to Oerlinghausen | 1,070.64 mi (1,723.03 km) |
| Priolo Gargallo to Oestrich-Winkel | 955.71 mi (1,538.07 km) |
| Priolo Gargallo to Offenburg | 861.94 mi (1,387.16 km) |
| Priolo Gargallo to Oftersheim | 905.33 mi (1,456.99 km) |
| Priolo Gargallo to Ohrdruf | 969.02 mi (1,559.49 km) |
| Priolo Gargallo to Ohringen | 878.70 mi (1,414.13 km) |
| Priolo Gargallo to Olbernhau | 937.21 mi (1,508.30 km) |
| Priolo Gargallo to Olching | 786.94 mi (1,266.46 km) |
| Priolo Gargallo to Oldenburg | 1,153.62 mi (1,856.58 km) |
| Priolo Gargallo to Oldenburg in Holstein | 1,201.26 mi (1,933.24 km) |
| Priolo Gargallo to Olfen | 1,074.93 mi (1,729.94 km) |
| Priolo Gargallo to Olpe | 1,022.84 mi (1,646.10 km) |
| Priolo Gargallo to Olsberg | 1,033.46 mi (1,663.19 km) |
| Priolo Gargallo to Oranienburg | 1,081.10 mi (1,739.86 km) |
| Priolo Gargallo to Ortenberg | 960.39 mi (1,545.59 km) |
