| Viana do Castelo to Isny im Allgau | 1,011.76 mi (1,628.27 km) |
| Viana do Castelo to Isselburg | 1,003.41 mi (1,614.84 km) |
| Viana do Castelo to Issum | 989.49 mi (1,592.43 km) |
| Viana do Castelo to Itzehoe | 1,192.55 mi (1,919.22 km) |
| Viana do Castelo to Jena | 1,158.45 mi (1,864.34 km) |
| Viana do Castelo to Jever | 1,125.93 mi (1,812.00 km) |
| Viana do Castelo to Jork | 1,181.73 mi (1,901.81 km) |
| Viana do Castelo to Juchen | 974.15 mi (1,567.74 km) |
| Viana do Castelo to Julich | 961.87 mi (1,547.98 km) |
| Viana do Castelo to Juterbog | 1,248.10 mi (2,008.63 km) |
| Viana do Castelo to Kaarst | 982.87 mi (1,581.78 km) |
| Viana do Castelo to Kaiserslautern | 961.64 mi (1,547.62 km) |
| Viana do Castelo to Kalkar | 993.54 mi (1,598.94 km) |
| Viana do Castelo to Kall | 954.08 mi (1,535.44 km) |
| Viana do Castelo to Kaltenkirchen | 1,203.42 mi (1,936.72 km) |
