| Waltrop to Idar-Oberstein | 131.68 mi (211.92 km) |
| Waltrop to Idstein | 103.97 mi (167.33 km) |
| Waltrop to Illertissen | 263.80 mi (424.55 km) |
| Waltrop to Illingen | 155.47 mi (250.21 km) |
| Waltrop to Ilmenau | 166.24 mi (267.53 km) |
| Waltrop to Ilsede | 127.43 mi (205.07 km) |
| Waltrop to Ilsenburg | 142.22 mi (228.89 km) |
| Waltrop to Ilsfeld | 195.50 mi (314.63 km) |
| Waltrop to Ilvesheim | 157.00 mi (252.67 km) |
| Waltrop to Immenstadt im Allgau | 307.20 mi (494.39 km) |
| Waltrop to Ingelheim | 117.20 mi (188.61 km) |
| Waltrop to Ingolstadt | 266.08 mi (428.21 km) |
| Waltrop to Iserlohn | 20.21 mi (32.53 km) |
| Waltrop to Isernhagen-Sud | 119.37 mi (192.11 km) |
| Waltrop to Ismaning | 302.01 mi (486.04 km) |
