| Sikeston to Orbetello | 5,035.31 mi (8,103.55 km) |
| Sikeston to Oria | 5,381.85 mi (8,661.25 km) |
| Sikeston to Oristano | 5,021.47 mi (8,081.28 km) |
| Sikeston to Orta Nova | 5,267.44 mi (8,477.13 km) |
| Sikeston to Orte | 5,083.48 mi (8,181.08 km) |
| Sikeston to Ortona | 5,171.17 mi (8,322.19 km) |
| Sikeston to Orvieto | 5,061.74 mi (8,146.08 km) |
| Sikeston to Orzinuovi | 4,868.27 mi (7,834.73 km) |
| Sikeston to Osimo | 5,087.56 mi (8,187.64 km) |
| Sikeston to Ospitaletto | 4,868.08 mi (7,834.41 km) |
| Sikeston to Ostuni | 5,369.75 mi (8,641.77 km) |
| Sikeston to Ottaviano | 5,236.26 mi (8,426.95 km) |
| Sikeston to Ovada | 4,844.08 mi (7,795.79 km) |
| Sikeston to Ozieri | 5,013.24 mi (8,068.03 km) |
| Sikeston to Paceco | 5,271.82 mi (8,484.17 km) |
