| Dakota Ridge to Orbetello | 5,509.87 mi (8,867.28 km) |
| Dakota Ridge to Oria | 5,833.32 mi (9,387.82 km) |
| Dakota Ridge to Oristano | 5,536.76 mi (8,910.55 km) |
| Dakota Ridge to Orta Nova | 5,724.04 mi (9,211.95 km) |
| Dakota Ridge to Orte | 5,550.56 mi (8,932.76 km) |
| Dakota Ridge to Ortona | 5,626.53 mi (9,055.02 km) |
| Dakota Ridge to Orvieto | 5,527.99 mi (8,896.43 km) |
| Dakota Ridge to Orzinuovi | 5,320.45 mi (8,562.43 km) |
| Dakota Ridge to Osimo | 5,537.63 mi (8,911.95 km) |
| Dakota Ridge to Ospitaletto | 5,317.81 mi (8,558.18 km) |
| Dakota Ridge to Ostuni | 5,819.38 mi (9,365.39 km) |
| Dakota Ridge to Ottaviano | 5,705.56 mi (9,182.21 km) |
| Dakota Ridge to Ovada | 5,311.68 mi (8,548.32 km) |
| Dakota Ridge to Ozieri | 5,519.47 mi (8,882.74 km) |
| Dakota Ridge to Paceco | 5,780.57 mi (9,302.94 km) |
