| Vila do Conde to Orbetello | 1,026.75 mi (1,652.40 km) |
| Vila do Conde to Oria | 1,372.96 mi (2,209.56 km) |
| Vila do Conde to Oristano | 912.99 mi (1,469.32 km) |
| Vila do Conde to Orta Nova | 1,264.38 mi (2,034.82 km) |
| Vila do Conde to Orte | 1,086.44 mi (1,748.46 km) |
| Vila do Conde to Ortona | 1,189.46 mi (1,914.25 km) |
| Vila do Conde to Orvieto | 1,071.62 mi (1,724.61 km) |
| Vila do Conde to Orzinuovi | 976.23 mi (1,571.09 km) |
| Vila do Conde to Osimo | 1,139.84 mi (1,834.39 km) |
| Vila do Conde to Ospitaletto | 984.81 mi (1,584.90 km) |
| Vila do Conde to Ostuni | 1,367.36 mi (2,200.55 km) |
| Vila do Conde to Ottaviano | 1,205.93 mi (1,940.76 km) |
| Vila do Conde to Ovada | 905.76 mi (1,457.67 km) |
| Vila do Conde to Ozieri | 925.80 mi (1,489.93 km) |
| Vila do Conde to Paceco | 1,153.11 mi (1,855.75 km) |
