| Viana do Castelo to Idar-Oberstein | 952.47 mi (1,532.85 km) |
| Viana do Castelo to Idstein | 1,006.93 mi (1,620.50 km) |
| Viana do Castelo to Illertissen | 1,024.96 mi (1,649.51 km) |
| Viana do Castelo to Illingen | 931.01 mi (1,498.32 km) |
| Viana do Castelo to Ilmenau | 1,124.93 mi (1,810.40 km) |
| Viana do Castelo to Ilsede | 1,149.96 mi (1,850.69 km) |
| Viana do Castelo to Ilsenburg | 1,154.04 mi (1,857.26 km) |
| Viana do Castelo to Ilsfeld | 1,010.28 mi (1,625.89 km) |
| Viana do Castelo to Ilvesheim | 994.53 mi (1,600.54 km) |
| Viana do Castelo to Immenstadt im Allgau | 1,017.16 mi (1,636.96 km) |
| Viana do Castelo to Ingelheim | 990.25 mi (1,593.66 km) |
| Viana do Castelo to Ingolstadt | 1,095.32 mi (1,762.75 km) |
| Viana do Castelo to Iserlohn | 1,026.60 mi (1,652.16 km) |
| Viana do Castelo to Isernhagen-Sud | 1,144.55 mi (1,841.97 km) |
| Viana do Castelo to Ismaning | 1,094.80 mi (1,761.91 km) |
