| Puerto Real to Oerlinghausen | 1,290.11 mi (2,076.24 km) |
| Puerto Real to Oestrich-Winkel | 1,168.89 mi (1,881.14 km) |
| Puerto Real to Offenburg | 1,091.00 mi (1,755.79 km) |
| Puerto Real to Oftersheim | 1,155.76 mi (1,860.02 km) |
| Puerto Real to Ohrdruf | 1,294.18 mi (2,082.79 km) |
| Puerto Real to Ohringen | 1,177.66 mi (1,895.26 km) |
| Puerto Real to Olbernhau | 1,373.38 mi (2,210.24 km) |
| Puerto Real to Olching | 1,198.61 mi (1,928.98 km) |
| Puerto Real to Oldenburg | 1,341.93 mi (2,159.63 km) |
| Puerto Real to Oldenburg in Holstein | 1,472.51 mi (2,369.78 km) |
| Puerto Real to Olfen | 1,242.28 mi (1,999.26 km) |
| Puerto Real to Olpe | 1,216.80 mi (1,958.25 km) |
| Puerto Real to Olsberg | 1,252.59 mi (2,015.85 km) |
| Puerto Real to Oranienburg | 1,463.10 mi (2,354.64 km) |
| Puerto Real to Ortenberg | 1,218.83 mi (1,961.53 km) |
