| Mitchellville to Orbetello | 4,397.82 mi (7,077.61 km) |
| Mitchellville to Oria | 4,750.86 mi (7,645.77 km) |
| Mitchellville to Oristano | 4,366.35 mi (7,026.95 km) |
| Mitchellville to Orta Nova | 4,635.45 mi (7,460.04 km) |
| Mitchellville to Orte | 4,448.85 mi (7,159.73 km) |
| Mitchellville to Ortona | 4,540.91 mi (7,307.88 km) |
| Mitchellville to Orvieto | 4,427.75 mi (7,125.77 km) |
| Mitchellville to Orzinuovi | 4,243.39 mi (6,829.08 km) |
| Mitchellville to Osimo | 4,460.83 mi (7,179.01 km) |
| Mitchellville to Ospitaletto | 4,244.38 mi (6,830.67 km) |
| Mitchellville to Ostuni | 4,739.75 mi (7,627.89 km) |
| Mitchellville to Ottaviano | 4,598.85 mi (7,401.13 km) |
| Mitchellville to Ovada | 4,212.13 mi (6,778.78 km) |
| Mitchellville to Ozieri | 4,362.01 mi (7,019.98 km) |
| Mitchellville to Paceco | 4,617.05 mi (7,430.42 km) |
