| Vila do Conde to Oerlinghausen | 1,099.18 mi (1,768.95 km) |
| Vila do Conde to Oestrich-Winkel | 1,001.43 mi (1,611.65 km) |
| Vila do Conde to Offenburg | 949.66 mi (1,528.32 km) |
| Vila do Conde to Oftersheim | 1,003.59 mi (1,615.11 km) |
| Vila do Conde to Ohrdruf | 1,134.40 mi (1,825.65 km) |
| Vila do Conde to Ohringen | 1,035.59 mi (1,666.63 km) |
| Vila do Conde to Olbernhau | 1,232.45 mi (1,983.44 km) |
| Vila do Conde to Olching | 1,087.41 mi (1,750.01 km) |
| Vila do Conde to Oldenburg | 1,133.03 mi (1,823.44 km) |
| Vila do Conde to Oldenburg in Holstein | 1,268.19 mi (2,040.96 km) |
| Vila do Conde to Olfen | 1,044.68 mi (1,681.25 km) |
| Vila do Conde to Olpe | 1,032.50 mi (1,661.64 km) |
| Vila do Conde to Olsberg | 1,068.69 mi (1,719.90 km) |
| Vila do Conde to Oranienburg | 1,291.69 mi (2,078.77 km) |
| Vila do Conde to Ortenberg | 1,054.17 mi (1,696.53 km) |
