| Heerlen to Idar-Oberstein | 100.00 mi (160.94 km) |
| Heerlen to Idstein | 110.50 mi (177.83 km) |
| Heerlen to Illertissen | 260.16 mi (418.69 km) |
| Heerlen to Illingen | 114.38 mi (184.07 km) |
| Heerlen to Ilmenau | 216.03 mi (347.67 km) |
| Heerlen to Ilsede | 204.07 mi (328.42 km) |
| Heerlen to Ilsenburg | 213.75 mi (343.99 km) |
| Heerlen to Ilsfeld | 192.64 mi (310.02 km) |
| Heerlen to Ilvesheim | 150.24 mi (241.79 km) |
| Heerlen to Immenstadt im Allgau | 298.23 mi (479.96 km) |
| Heerlen to Ingelheim | 110.75 mi (178.24 km) |
| Heerlen to Ingolstadt | 283.26 mi (455.87 km) |
| Heerlen to Iserlohn | 80.75 mi (129.95 km) |
| Heerlen to Isernhagen-Sud | 197.58 mi (317.97 km) |
| Heerlen to Ismaning | 314.06 mi (505.43 km) |
