| Welwyn Garden City to Idar-Oberstein | 358.37 mi (576.74 km) |
| Welwyn Garden City to Idstein | 383.77 mi (617.62 km) |
| Welwyn Garden City to Illertissen | 518.68 mi (834.73 km) |
| Welwyn Garden City to Illingen | 359.21 mi (578.10 km) |
| Welwyn Garden City to Ilmenau | 486.36 mi (782.72 km) |
| Welwyn Garden City to Ilsede | 441.80 mi (711.01 km) |
| Welwyn Garden City to Ilsenburg | 463.94 mi (746.64 km) |
| Welwyn Garden City to Ilsfeld | 456.75 mi (735.06 km) |
| Welwyn Garden City to Ilvesheim | 416.03 mi (669.54 km) |
| Welwyn Garden City to Immenstadt im Allgau | 549.08 mi (883.65 km) |
| Welwyn Garden City to Ingelheim | 380.92 mi (613.03 km) |
| Welwyn Garden City to Ingolstadt | 553.57 mi (890.89 km) |
| Welwyn Garden City to Iserlohn | 338.46 mi (544.70 km) |
| Welwyn Garden City to Isernhagen-Sud | 428.23 mi (689.16 km) |
| Welwyn Garden City to Ismaning | 581.07 mi (935.14 km) |
