| Coamo to Orbetello | 4,759.16 mi (7,659.13 km) |
| Coamo to Oria | 5,106.83 mi (8,218.65 km) |
| Coamo to Oristano | 4,639.50 mi (7,466.56 km) |
| Coamo to Orta Nova | 4,998.35 mi (8,044.06 km) |
| Coamo to Orte | 4,818.52 mi (7,754.66 km) |
| Coamo to Ortona | 4,921.42 mi (7,920.26 km) |
| Coamo to Orvieto | 4,802.64 mi (7,729.11 km) |
| Coamo to Orzinuovi | 4,679.34 mi (7,530.67 km) |
| Coamo to Osimo | 4,865.60 mi (7,830.43 km) |
| Coamo to Ospitaletto | 4,685.44 mi (7,540.48 km) |
| Coamo to Ostuni | 5,101.39 mi (8,209.89 km) |
| Coamo to Ottaviano | 4,939.73 mi (7,949.73 km) |
| Coamo to Ovada | 4,619.59 mi (7,434.52 km) |
| Coamo to Ozieri | 4,657.09 mi (7,494.86 km) |
| Coamo to Paceco | 4,865.91 mi (7,830.92 km) |
