| Adel to Orbetello | 981.47 mi (1,579.52 km) |
| Adel to Oria | 1,282.46 mi (2,063.92 km) |
| Adel to Oristano | 1,074.11 mi (1,728.62 km) |
| Adel to Orta Nova | 1,176.05 mi (1,892.68 km) |
| Adel to Orte | 1,013.04 mi (1,630.33 km) |
| Adel to Ortona | 1,079.20 mi (1,736.80 km) |
| Adel to Orvieto | 990.41 mi (1,593.91 km) |
| Adel to Orzinuovi | 776.89 mi (1,250.28 km) |
| Adel to Osimo | 988.88 mi (1,591.45 km) |
| Adel to Ospitaletto | 772.51 mi (1,243.24 km) |
| Adel to Ostuni | 1,268.11 mi (2,040.83 km) |
| Adel to Ottaviano | 1,165.76 mi (1,876.11 km) |
| Adel to Ovada | 784.38 mi (1,262.34 km) |
| Adel to Ozieri | 1,039.92 mi (1,673.59 km) |
| Adel to Paceco | 1,284.40 mi (2,067.03 km) |
