| Medford to Orbetello | 5,920.91 mi (9,528.79 km) |
| Medford to Oria | 6,203.52 mi (9,983.61 km) |
| Medford to Oristano | 5,993.67 mi (9,645.87 km) |
| Medford to Orta Nova | 6,105.01 mi (9,825.07 km) |
| Medford to Orte | 5,951.23 mi (9,577.58 km) |
| Medford to Ortona | 6,010.39 mi (9,672.79 km) |
| Medford to Orvieto | 5,928.70 mi (9,541.32 km) |
| Medford to Orzinuovi | 5,714.35 mi (9,196.36 km) |
| Medford to Osimo | 5,919.38 mi (9,526.32 km) |
| Medford to Ospitaletto | 5,709.07 mi (9,187.86 km) |
| Medford to Ostuni | 6,188.07 mi (9,958.73 km) |
| Medford to Ottaviano | 6,102.05 mi (9,820.29 km) |
| Medford to Ovada | 5,723.45 mi (9,210.99 km) |
| Medford to Ozieri | 5,966.60 mi (9,602.31 km) |
| Medford to Paceco | 6,219.92 mi (10,009.99 km) |
