| West Memphis to Orbetello | 5,139.64 mi (8,271.45 km) |
| West Memphis to Oria | 5,487.70 mi (8,831.61 km) |
| West Memphis to Oristano | 5,121.66 mi (8,242.52 km) |
| West Memphis to Orta Nova | 5,373.03 mi (8,647.06 km) |
| West Memphis to Orte | 5,188.43 mi (8,349.97 km) |
| West Memphis to Ortona | 5,277.04 mi (8,492.58 km) |
| West Memphis to Orvieto | 5,166.80 mi (8,315.17 km) |
| West Memphis to Orzinuovi | 4,974.97 mi (8,006.44 km) |
| West Memphis to Osimo | 5,194.05 mi (8,359.02 km) |
| West Memphis to Ospitaletto | 4,974.99 mi (8,006.47 km) |
| West Memphis to Ostuni | 5,475.79 mi (8,812.43 km) |
| West Memphis to Ottaviano | 5,340.72 mi (8,595.06 km) |
| West Memphis to Ovada | 4,949.42 mi (7,965.32 km) |
| West Memphis to Ozieri | 5,114.42 mi (8,230.87 km) |
| West Memphis to Paceco | 5,372.24 mi (8,645.78 km) |
