| Coram to Orbetello | 4,155.34 mi (6,687.38 km) |
| Coram to Oria | 4,508.40 mi (7,255.57 km) |
| Coram to Oristano | 4,124.42 mi (6,637.62 km) |
| Coram to Orta Nova | 4,392.99 mi (7,069.83 km) |
| Coram to Orte | 4,206.38 mi (6,769.51 km) |
| Coram to Ortona | 4,298.47 mi (6,917.71 km) |
| Coram to Orvieto | 4,185.27 mi (6,735.55 km) |
| Coram to Orzinuovi | 4,001.09 mi (6,439.13 km) |
| Coram to Osimo | 4,218.45 mi (6,788.95 km) |
| Coram to Ospitaletto | 4,002.12 mi (6,440.79 km) |
| Coram to Ostuni | 4,497.30 mi (7,237.70 km) |
| Coram to Ottaviano | 4,356.38 mi (7,010.91 km) |
| Coram to Ovada | 3,969.69 mi (6,388.60 km) |
| Coram to Ozieri | 4,119.88 mi (6,630.30 km) |
| Coram to Paceco | 4,375.14 mi (7,041.11 km) |
