| Del City to Oerlinghausen | 4,939.10 mi (7,948.71 km) |
| Del City to Oestrich-Winkel | 4,991.98 mi (8,033.82 km) |
| Del City to Offenburg | 5,049.73 mi (8,126.75 km) |
| Del City to Oftersheim | 5,038.24 mi (8,108.27 km) |
| Del City to Ohrdruf | 5,057.22 mi (8,138.81 km) |
| Del City to Ohringen | 5,078.71 mi (8,173.40 km) |
| Del City to Olbernhau | 5,154.80 mi (8,295.84 km) |
| Del City to Olching | 5,186.38 mi (8,346.68 km) |
| Del City to Oldenburg | 4,877.79 mi (7,850.05 km) |
| Del City to Oldenburg in Holstein | 4,922.53 mi (7,922.04 km) |
| Del City to Olfen | 4,903.32 mi (7,891.13 km) |
| Del City to Olpe | 4,946.37 mi (7,960.42 km) |
| Del City to Olsberg | 4,956.68 mi (7,977.01 km) |
| Del City to Oranienburg | 5,063.62 mi (8,149.11 km) |
| Del City to Ortenberg | 5,016.33 mi (8,073.00 km) |
