| Alenquer to Idar-Oberstein | 1,087.87 mi (1,750.75 km) |
| Alenquer to Idstein | 1,143.11 mi (1,839.66 km) |
| Alenquer to Illertissen | 1,141.12 mi (1,836.45 km) |
| Alenquer to Illingen | 1,064.76 mi (1,713.57 km) |
| Alenquer to Ilmenau | 1,257.53 mi (2,023.80 km) |
| Alenquer to Ilsede | 1,293.70 mi (2,082.01 km) |
| Alenquer to Ilsenburg | 1,294.42 mi (2,083.18 km) |
| Alenquer to Ilsfeld | 1,135.30 mi (1,827.09 km) |
| Alenquer to Ilvesheim | 1,124.59 mi (1,809.86 km) |
| Alenquer to Immenstadt im Allgau | 1,127.34 mi (1,814.28 km) |
| Alenquer to Ingelheim | 1,125.35 mi (1,811.08 km) |
| Alenquer to Ingolstadt | 1,212.92 mi (1,952.01 km) |
| Alenquer to Iserlohn | 1,171.68 mi (1,885.63 km) |
| Alenquer to Isernhagen-Sud | 1,289.91 mi (2,075.92 km) |
| Alenquer to Ismaning | 1,207.54 mi (1,943.35 km) |
