| Rottingdean to Orbetello | 786.46 mi (1,265.68 km) |
| Rottingdean to Oria | 1,107.83 mi (1,782.88 km) |
| Rottingdean to Oristano | 861.63 mi (1,386.67 km) |
| Rottingdean to Orta Nova | 996.92 mi (1,604.39 km) |
| Rottingdean to Orte | 823.83 mi (1,325.83 km) |
| Rottingdean to Ortona | 899.38 mi (1,447.41 km) |
| Rottingdean to Orvieto | 801.18 mi (1,289.38 km) |
| Rottingdean to Orzinuovi | 593.05 mi (954.43 km) |
| Rottingdean to Osimo | 811.43 mi (1,305.87 km) |
| Rottingdean to Ospitaletto | 590.88 mi (950.94 km) |
| Rottingdean to Ostuni | 1,094.46 mi (1,761.37 km) |
| Rottingdean to Ottaviano | 978.60 mi (1,574.91 km) |
| Rottingdean to Ovada | 587.45 mi (945.40 km) |
| Rottingdean to Ozieri | 829.93 mi (1,335.64 km) |
| Rottingdean to Paceco | 1,080.18 mi (1,738.38 km) |
