| Collierville to Orbetello | 5,123.17 mi (8,244.94 km) |
| Collierville to Oria | 5,471.76 mi (8,805.95 km) |
| Collierville to Oristano | 5,103.81 mi (8,213.80 km) |
| Collierville to Orta Nova | 5,357.00 mi (8,621.26 km) |
| Collierville to Orte | 5,172.18 mi (8,323.81 km) |
| Collierville to Ortona | 5,261.12 mi (8,466.95 km) |
| Collierville to Orvieto | 5,150.59 mi (8,289.08 km) |
| Collierville to Orzinuovi | 4,959.39 mi (7,981.36 km) |
| Collierville to Osimo | 5,178.37 mi (8,333.79 km) |
| Collierville to Ospitaletto | 4,959.49 mi (7,981.53 km) |
| Collierville to Ostuni | 5,459.92 mi (8,786.89 km) |
| Collierville to Ottaviano | 5,324.28 mi (8,568.60 km) |
| Collierville to Ovada | 4,933.32 mi (7,939.42 km) |
| Collierville to Ozieri | 5,096.89 mi (8,202.65 km) |
| Collierville to Paceco | 5,354.44 mi (8,617.14 km) |
