| Camp Springs to Oerlinghausen | 4,004.47 mi (6,444.57 km) |
| Camp Springs to Oestrich-Winkel | 4,033.05 mi (6,490.57 km) |
| Camp Springs to Offenburg | 4,074.54 mi (6,557.34 km) |
| Camp Springs to Oftersheim | 4,074.93 mi (6,557.96 km) |
| Camp Springs to Ohrdruf | 4,118.15 mi (6,627.52 km) |
| Camp Springs to Ohringen | 4,117.26 mi (6,626.09 km) |
| Camp Springs to Olbernhau | 4,224.99 mi (6,799.47 km) |
| Camp Springs to Olching | 4,222.18 mi (6,794.94 km) |
| Camp Springs to Oldenburg | 3,955.09 mi (6,365.10 km) |
| Camp Springs to Oldenburg in Holstein | 4,024.08 mi (6,476.14 km) |
| Camp Springs to Olfen | 3,960.94 mi (6,374.52 km) |
| Camp Springs to Olpe | 3,997.86 mi (6,433.94 km) |
| Camp Springs to Olsberg | 4,014.39 mi (6,460.53 km) |
| Camp Springs to Oranienburg | 4,156.69 mi (6,689.54 km) |
| Camp Springs to Ortenberg | 4,065.36 mi (6,542.56 km) |
