| Crofton to Orbetello | 4,388.78 mi (7,063.07 km) |
| Crofton to Oria | 4,741.82 mi (7,631.22 km) |
| Crofton to Oristano | 4,357.35 mi (7,012.48 km) |
| Crofton to Orta Nova | 4,626.41 mi (7,445.49 km) |
| Crofton to Orte | 4,439.81 mi (7,145.19 km) |
| Crofton to Ortona | 4,531.87 mi (7,293.34 km) |
| Crofton to Orvieto | 4,418.71 mi (7,111.23 km) |
| Crofton to Orzinuovi | 4,234.35 mi (6,814.53 km) |
| Crofton to Osimo | 4,451.78 mi (7,164.45 km) |
| Crofton to Ospitaletto | 4,235.34 mi (6,816.12 km) |
| Crofton to Ostuni | 4,730.71 mi (7,613.34 km) |
| Crofton to Ottaviano | 4,589.81 mi (7,386.59 km) |
| Crofton to Ovada | 4,203.09 mi (6,764.23 km) |
| Crofton to Ozieri | 4,353.01 mi (7,005.49 km) |
| Crofton to Paceco | 4,608.06 mi (7,415.95 km) |
