| Therwil to Idar-Oberstein | 153.20 mi (246.55 km) |
| Therwil to Idstein | 190.85 mi (307.15 km) |
| Therwil to Illertissen | 127.46 mi (205.12 km) |
| Therwil to Illingen | 131.66 mi (211.88 km) |
| Therwil to Ilmenau | 267.60 mi (430.66 km) |
| Therwil to Ilsede | 349.55 mi (562.54 km) |
| Therwil to Ilsenburg | 332.58 mi (535.24 km) |
| Therwil to Ilsfeld | 132.60 mi (213.40 km) |
| Therwil to Ilvesheim | 144.05 mi (231.82 km) |
| Therwil to Immenstadt im Allgau | 124.48 mi (200.33 km) |
| Therwil to Ingelheim | 172.55 mi (277.70 km) |
| Therwil to Ingolstadt | 198.84 mi (320.01 km) |
| Therwil to Iserlohn | 268.38 mi (431.92 km) |
| Therwil to Isernhagen-Sud | 355.98 mi (572.89 km) |
| Therwil to Ismaning | 197.56 mi (317.94 km) |
