| Southfield to Oerlinghausen | 4,069.24 mi (6,548.81 km) |
| Southfield to Oestrich-Winkel | 4,114.12 mi (6,621.03 km) |
| Southfield to Offenburg | 4,167.00 mi (6,706.13 km) |
| Southfield to Oftersheim | 4,159.13 mi (6,693.47 km) |
| Southfield to Ohrdruf | 4,186.27 mi (6,737.15 km) |
| Southfield to Ohringen | 4,200.33 mi (6,759.78 km) |
| Southfield to Olbernhau | 4,287.53 mi (6,900.12 km) |
| Southfield to Olching | 4,307.47 mi (6,932.21 km) |
| Southfield to Oldenburg | 4,011.96 mi (6,456.62 km) |
| Southfield to Oldenburg in Holstein | 4,066.10 mi (6,543.75 km) |
| Southfield to Olfen | 4,030.62 mi (6,486.66 km) |
| Southfield to Olpe | 4,071.77 mi (6,552.87 km) |
| Southfield to Olsberg | 4,084.22 mi (6,572.92 km) |
| Southfield to Oranienburg | 4,204.55 mi (6,766.57 km) |
| Southfield to Ortenberg | 4,141.16 mi (6,664.55 km) |
