| Northampton to Idar-Oberstein | 396.92 mi (638.79 km) |
| Northampton to Idstein | 419.95 mi (675.85 km) |
| Northampton to Illertissen | 558.06 mi (898.11 km) |
| Northampton to Illingen | 398.78 mi (641.78 km) |
| Northampton to Ilmenau | 519.06 mi (835.35 km) |
| Northampton to Ilsede | 468.13 mi (753.38 km) |
| Northampton to Ilsenburg | 492.05 mi (791.88 km) |
| Northampton to Ilsfeld | 495.24 mi (797.02 km) |
| Northampton to Ilvesheim | 454.12 mi (730.84 km) |
| Northampton to Immenstadt im Allgau | 589.23 mi (948.27 km) |
| Northampton to Ingelheim | 418.07 mi (672.81 km) |
| Northampton to Ingolstadt | 591.09 mi (951.26 km) |
| Northampton to Iserlohn | 370.14 mi (595.69 km) |
| Northampton to Isernhagen-Sud | 453.72 mi (730.20 km) |
| Northampton to Ismaning | 619.40 mi (996.82 km) |
