| Vila Real to Oerlinghausen | 1,067.77 mi (1,718.42 km) |
| Vila Real to Oestrich-Winkel | 966.25 mi (1,555.03 km) |
| Vila Real to Offenburg | 910.95 mi (1,466.04 km) |
| Vila Real to Oftersheim | 966.46 mi (1,555.37 km) |
| Vila Real to Ohrdruf | 1,098.83 mi (1,768.40 km) |
| Vila Real to Ohringen | 997.42 mi (1,605.19 km) |
| Vila Real to Olbernhau | 1,194.94 mi (1,923.07 km) |
| Vila Real to Olching | 1,046.13 mi (1,683.59 km) |
| Vila Real to Oldenburg | 1,104.59 mi (1,777.66 km) |
| Vila Real to Oldenburg in Holstein | 1,239.50 mi (1,994.78 km) |
| Vila Real to Olfen | 1,014.05 mi (1,631.96 km) |
| Vila Real to Olpe | 999.81 mi (1,609.04 km) |
| Vila Real to Olsberg | 1,036.12 mi (1,667.48 km) |
| Vila Real to Oranienburg | 1,258.23 mi (2,024.92 km) |
| Vila Real to Ortenberg | 1,018.88 mi (1,639.73 km) |
