| Estremoz to Idar-Oberstein | 1,048.03 mi (1,686.64 km) |
| Estremoz to Idstein | 1,103.37 mi (1,775.70 km) |
| Estremoz to Illertissen | 1,092.02 mi (1,757.44 km) |
| Estremoz to Illingen | 1,024.22 mi (1,648.32 km) |
| Estremoz to Ilmenau | 1,215.40 mi (1,956.00 km) |
| Estremoz to Ilsede | 1,257.43 mi (2,023.64 km) |
| Estremoz to Ilsenburg | 1,256.24 mi (2,021.72 km) |
| Estremoz to Ilsfeld | 1,090.12 mi (1,754.38 km) |
| Estremoz to Ilvesheim | 1,081.86 mi (1,741.09 km) |
| Estremoz to Immenstadt im Allgau | 1,075.90 mi (1,731.50 km) |
| Estremoz to Ingelheim | 1,085.15 mi (1,746.37 km) |
| Estremoz to Ingolstadt | 1,164.08 mi (1,873.41 km) |
| Estremoz to Iserlohn | 1,136.76 mi (1,829.43 km) |
| Estremoz to Isernhagen-Sud | 1,254.63 mi (2,019.13 km) |
| Estremoz to Ismaning | 1,156.72 mi (1,861.57 km) |
