| Valley Stream to Orbetello | 4,194.22 mi (6,749.94 km) |
| Valley Stream to Oria | 4,547.15 mi (7,317.93 km) |
| Valley Stream to Oristano | 4,163.66 mi (6,700.76 km) |
| Valley Stream to Orta Nova | 4,431.75 mi (7,132.21 km) |
| Valley Stream to Orte | 4,245.19 mi (6,831.97 km) |
| Valley Stream to Ortona | 4,337.18 mi (6,980.01 km) |
| Valley Stream to Orvieto | 4,224.07 mi (6,797.98 km) |
| Valley Stream to Orzinuovi | 4,039.63 mi (6,501.15 km) |
| Valley Stream to Osimo | 4,257.07 mi (6,851.09 km) |
| Valley Stream to Ospitaletto | 4,040.62 mi (6,502.75 km) |
| Valley Stream to Ostuni | 4,536.02 mi (7,300.02 km) |
| Valley Stream to Ottaviano | 4,395.27 mi (7,073.50 km) |
| Valley Stream to Ovada | 4,008.41 mi (6,450.91 km) |
| Valley Stream to Ozieri | 4,159.04 mi (6,693.33 km) |
| Valley Stream to Paceco | 4,414.39 mi (7,104.27 km) |
