| Grants Pass to Orbetello | 5,928.19 mi (9,540.50 km) |
| Grants Pass to Oria | 6,209.44 mi (9,993.13 km) |
| Grants Pass to Oristano | 6,002.21 mi (9,659.63 km) |
| Grants Pass to Orta Nova | 6,111.30 mi (9,835.19 km) |
| Grants Pass to Orte | 5,958.19 mi (9,588.78 km) |
| Grants Pass to Ortona | 6,016.83 mi (9,683.15 km) |
| Grants Pass to Orvieto | 5,935.67 mi (9,552.55 km) |
| Grants Pass to Orzinuovi | 5,721.29 mi (9,207.52 km) |
| Grants Pass to Osimo | 5,925.82 mi (9,536.69 km) |
| Grants Pass to Ospitaletto | 5,715.93 mi (9,198.91 km) |
| Grants Pass to Ostuni | 6,193.95 mi (9,968.20 km) |
| Grants Pass to Ottaviano | 6,108.78 mi (9,831.14 km) |
| Grants Pass to Ovada | 5,730.88 mi (9,222.96 km) |
| Grants Pass to Ozieri | 5,974.88 mi (9,615.64 km) |
| Grants Pass to Paceco | 6,227.81 mi (10,022.69 km) |
