| Derinkuyu to Orbetello | 1,264.64 mi (2,035.24 km) |
| Derinkuyu to Oria | 922.81 mi (1,485.12 km) |
| Derinkuyu to Oristano | 1,399.98 mi (2,253.05 km) |
| Derinkuyu to Orta Nova | 1,027.31 mi (1,653.30 km) |
| Derinkuyu to Orte | 1,205.22 mi (1,939.61 km) |
| Derinkuyu to Ortona | 1,102.30 mi (1,773.97 km) |
| Derinkuyu to Orvieto | 1,221.12 mi (1,965.20 km) |
| Derinkuyu to Orzinuovi | 1,358.23 mi (2,185.85 km) |
| Derinkuyu to Osimo | 1,160.42 mi (1,867.52 km) |
| Derinkuyu to Ospitaletto | 1,353.92 mi (2,178.92 km) |
| Derinkuyu to Ostuni | 926.58 mi (1,491.18 km) |
| Derinkuyu to Ottaviano | 1,089.22 mi (1,752.93 km) |
| Derinkuyu to Ovada | 1,410.52 mi (2,270.01 km) |
| Derinkuyu to Ozieri | 1,375.79 mi (2,214.12 km) |
| Derinkuyu to Paceco | 1,202.32 mi (1,934.95 km) |
