| Copperas Cove to Orbetello | 5,655.36 mi (9,101.43 km) |
| Copperas Cove to Oria | 6,000.92 mi (9,657.54 km) |
| Copperas Cove to Oristano | 5,642.44 mi (9,080.63 km) |
| Copperas Cove to Orta Nova | 5,886.72 mi (9,473.76 km) |
| Copperas Cove to Orte | 5,703.19 mi (9,178.40 km) |
| Copperas Cove to Ortona | 5,790.26 mi (9,318.52 km) |
| Copperas Cove to Orvieto | 5,681.38 mi (9,143.30 km) |
| Copperas Cove to Orzinuovi | 5,486.78 mi (8,830.11 km) |
| Copperas Cove to Osimo | 5,706.18 mi (9,183.22 km) |
| Copperas Cove to Ospitaletto | 5,486.39 mi (8,829.49 km) |
| Copperas Cove to Ostuni | 5,988.68 mi (9,637.84 km) |
| Copperas Cove to Ottaviano | 5,856.22 mi (9,424.67 km) |
| Copperas Cove to Ovada | 5,463.59 mi (8,792.80 km) |
| Copperas Cove to Ozieri | 5,634.18 mi (9,067.34 km) |
| Copperas Cove to Paceco | 5,892.79 mi (9,483.53 km) |
