| Harbiye to Orbetello | 1,396.64 mi (2,247.68 km) |
| Harbiye to Oria | 1,045.45 mi (1,682.48 km) |
| Harbiye to Oristano | 1,515.77 mi (2,439.39 km) |
| Harbiye to Orta Nova | 1,155.04 mi (1,858.86 km) |
| Harbiye to Orte | 1,338.08 mi (2,153.44 km) |
| Harbiye to Ortona | 1,236.04 mi (1,989.22 km) |
| Harbiye to Orvieto | 1,355.36 mi (2,181.24 km) |
| Harbiye to Orzinuovi | 1,504.73 mi (2,421.64 km) |
| Harbiye to Osimo | 1,300.29 mi (2,092.62 km) |
| Harbiye to Ospitaletto | 1,501.23 mi (2,415.99 km) |
| Harbiye to Ostuni | 1,051.17 mi (1,691.70 km) |
| Harbiye to Ottaviano | 1,212.51 mi (1,951.35 km) |
| Harbiye to Ovada | 1,552.60 mi (2,498.67 km) |
| Harbiye to Ozieri | 1,495.81 mi (2,407.27 km) |
| Harbiye to Paceco | 1,303.35 mi (2,097.54 km) |
