| Placentia to Oerlinghausen | 5,683.61 mi (9,146.89 km) |
| Placentia to Oestrich-Winkel | 5,764.25 mi (9,276.67 km) |
| Placentia to Offenburg | 5,840.20 mi (9,398.89 km) |
| Placentia to Oftersheim | 5,813.99 mi (9,356.71 km) |
| Placentia to Ohrdruf | 5,801.55 mi (9,336.69 km) |
| Placentia to Ohringen | 5,850.29 mi (9,415.13 km) |
| Placentia to Olbernhau | 5,882.86 mi (9,467.55 km) |
| Placentia to Olching | 5,956.73 mi (9,586.43 km) |
| Placentia to Oldenburg | 5,610.83 mi (9,029.76 km) |
| Placentia to Oldenburg in Holstein | 5,624.13 mi (9,051.16 km) |
| Placentia to Olfen | 5,659.09 mi (9,107.42 km) |
| Placentia to Olpe | 5,707.69 mi (9,185.63 km) |
| Placentia to Olsberg | 5,709.80 mi (9,189.04 km) |
| Placentia to Oranienburg | 5,768.05 mi (9,282.79 km) |
| Placentia to Ortenberg | 5,777.47 mi (9,297.94 km) |
