| Ludlow to Orbetello | 942.87 mi (1,517.41 km) |
| Ludlow to Oria | 1,261.68 mi (2,030.47 km) |
| Ludlow to Oristano | 1,014.49 mi (1,632.66 km) |
| Ludlow to Orta Nova | 1,151.57 mi (1,853.27 km) |
| Ludlow to Orte | 979.84 mi (1,576.91 km) |
| Ludlow to Ortona | 1,054.04 mi (1,696.31 km) |
| Ludlow to Orvieto | 957.18 mi (1,540.43 km) |
| Ludlow to Orzinuovi | 747.94 mi (1,203.70 km) |
| Ludlow to Osimo | 965.48 mi (1,553.79 km) |
| Ludlow to Ospitaletto | 745.33 mi (1,199.49 km) |
| Ludlow to Ostuni | 1,248.08 mi (2,008.59 km) |
| Ludlow to Ottaviano | 1,134.48 mi (1,825.77 km) |
| Ludlow to Ovada | 743.87 mi (1,197.15 km) |
| Ludlow to Ozieri | 984.14 mi (1,583.82 km) |
| Ludlow to Paceco | 1,235.88 mi (1,988.96 km) |
