| Oxon Hill to Orbetello | 4,410.61 mi (7,098.19 km) |
| Oxon Hill to Oria | 4,763.71 mi (7,666.45 km) |
| Oxon Hill to Oristano | 4,378.89 mi (7,047.14 km) |
| Oxon Hill to Orta Nova | 4,648.29 mi (7,480.71 km) |
| Oxon Hill to Orte | 4,461.67 mi (7,180.37 km) |
| Oxon Hill to Ortona | 4,553.77 mi (7,328.58 km) |
| Oxon Hill to Orvieto | 4,440.58 mi (7,146.42 km) |
| Oxon Hill to Orzinuovi | 4,256.32 mi (6,849.88 km) |
| Oxon Hill to Osimo | 4,473.73 mi (7,199.77 km) |
| Oxon Hill to Ospitaletto | 4,257.32 mi (6,851.49 km) |
| Oxon Hill to Ostuni | 4,752.60 mi (7,648.58 km) |
| Oxon Hill to Ottaviano | 4,611.63 mi (7,421.70 km) |
| Oxon Hill to Ovada | 4,224.99 mi (6,799.47 km) |
| Oxon Hill to Ozieri | 4,374.62 mi (7,040.27 km) |
| Oxon Hill to Paceco | 4,629.59 mi (7,450.60 km) |
