| Enid to Oerlinghausen | 4,902.40 mi (7,889.65 km) |
| Enid to Oestrich-Winkel | 4,957.36 mi (7,978.09 km) |
| Enid to Offenburg | 5,016.54 mi (8,073.35 km) |
| Enid to Oftersheim | 5,003.95 mi (8,053.07 km) |
| Enid to Ohrdruf | 5,020.71 mi (8,080.06 km) |
| Enid to Ohringen | 5,044.18 mi (8,117.83 km) |
| Enid to Olbernhau | 5,117.34 mi (8,235.56 km) |
| Enid to Olching | 5,151.94 mi (8,291.25 km) |
| Enid to Oldenburg | 4,840.19 mi (7,789.54 km) |
| Enid to Oldenburg in Holstein | 4,882.91 mi (7,858.29 km) |
| Enid to Olfen | 4,867.35 mi (7,833.24 km) |
| Enid to Olpe | 4,910.87 mi (7,903.29 km) |
| Enid to Olsberg | 4,920.62 mi (7,918.97 km) |
| Enid to Oranienburg | 5,024.44 mi (8,086.05 km) |
| Enid to Ortenberg | 4,980.94 mi (8,016.05 km) |
