| Welling to Idar-Oberstein | 338.12 mi (544.16 km) |
| Welling to Idstein | 366.16 mi (589.27 km) |
| Welling to Illertissen | 497.15 mi (800.09 km) |
| Welling to Illingen | 337.66 mi (543.42 km) |
| Welling to Ilmenau | 471.91 mi (759.46 km) |
| Welling to Ilsede | 433.06 mi (696.95 km) |
| Welling to Ilsenburg | 453.63 mi (730.05 km) |
| Welling to Ilsfeld | 436.38 mi (702.28 km) |
| Welling to Ilvesheim | 396.22 mi (637.65 km) |
| Welling to Immenstadt im Allgau | 526.50 mi (847.32 km) |
| Welling to Ingelheim | 362.25 mi (582.98 km) |
| Welling to Ingolstadt | 534.19 mi (859.69 km) |
| Welling to Iserlohn | 325.50 mi (523.84 km) |
| Welling to Isernhagen-Sud | 420.22 mi (676.29 km) |
| Welling to Ismaning | 560.75 mi (902.44 km) |
