| Welling to Isny im Allgau | 514.81 mi (828.50 km) |
| Welling to Isselburg | 273.68 mi (440.44 km) |
| Welling to Issum | 271.55 mi (437.01 km) |
| Welling to Itzehoe | 428.76 mi (690.02 km) |
| Welling to Jena | 497.78 mi (801.10 km) |
| Welling to Jever | 358.45 mi (576.86 km) |
| Welling to Jork | 427.00 mi (687.19 km) |
| Welling to Juchen | 277.27 mi (446.23 km) |
| Welling to Julich | 273.03 mi (439.40 km) |
| Welling to Juterbog | 555.27 mi (893.63 km) |
| Welling to Kaarst | 281.28 mi (452.67 km) |
| Welling to Kaiserslautern | 364.35 mi (586.37 km) |
| Welling to Kalkar | 265.97 mi (428.04 km) |
| Welling to Kall | 286.86 mi (461.66 km) |
| Welling to Kaltenkirchen | 444.00 mi (714.54 km) |
