| Sintra to Idar-Oberstein | 1,114.11 mi (1,792.99 km) |
| Sintra to Idstein | 1,169.35 mi (1,881.88 km) |
| Sintra to Illertissen | 1,167.56 mi (1,879.00 km) |
| Sintra to Illingen | 1,091.04 mi (1,755.87 km) |
| Sintra to Ilmenau | 1,283.86 mi (2,066.18 km) |
| Sintra to Ilsede | 1,319.72 mi (2,123.88 km) |
| Sintra to Ilsenburg | 1,320.56 mi (2,125.24 km) |
| Sintra to Ilsfeld | 1,161.72 mi (1,869.60 km) |
| Sintra to Ilvesheim | 1,150.95 mi (1,852.27 km) |
| Sintra to Immenstadt im Allgau | 1,153.75 mi (1,856.78 km) |
| Sintra to Ingelheim | 1,151.61 mi (1,853.34 km) |
| Sintra to Ingolstadt | 1,239.36 mi (1,994.56 km) |
| Sintra to Iserlohn | 1,197.62 mi (1,927.38 km) |
| Sintra to Isernhagen-Sud | 1,315.87 mi (2,117.69 km) |
| Sintra to Ismaning | 1,233.96 mi (1,985.87 km) |
