| Dicle to Orbetello | 1,536.44 mi (2,472.66 km) |
| Dicle to Oria | 1,203.11 mi (1,936.22 km) |
| Dicle to Oristano | 1,681.65 mi (2,706.35 km) |
| Dicle to Orta Nova | 1,303.83 mi (2,098.31 km) |
| Dicle to Orte | 1,476.65 mi (2,376.45 km) |
| Dicle to Ortona | 1,373.69 mi (2,210.74 km) |
| Dicle to Orvieto | 1,491.27 mi (2,399.96 km) |
| Dicle to Orzinuovi | 1,613.63 mi (2,596.88 km) |
| Dicle to Osimo | 1,425.51 mi (2,294.14 km) |
| Dicle to Ospitaletto | 1,608.21 mi (2,588.16 km) |
| Dicle to Ostuni | 1,205.76 mi (1,940.48 km) |
| Dicle to Ottaviano | 1,368.15 mi (2,201.83 km) |
| Dicle to Ovada | 1,671.29 mi (2,689.68 km) |
| Dicle to Ozieri | 1,655.35 mi (2,664.03 km) |
| Dicle to Paceco | 1,489.55 mi (2,397.19 km) |
