| Heysham to Idar-Oberstein | 527.63 mi (849.15 km) |
| Heysham to Idstein | 541.55 mi (871.53 km) |
| Heysham to Illertissen | 690.27 mi (1,110.88 km) |
| Heysham to Illingen | 533.44 mi (858.49 km) |
| Heysham to Ilmenau | 626.09 mi (1,007.60 km) |
| Heysham to Ilsede | 554.70 mi (892.71 km) |
| Heysham to Ilsenburg | 583.83 mi (939.58 km) |
| Heysham to Ilsfeld | 624.34 mi (1,004.77 km) |
| Heysham to Ilvesheim | 582.14 mi (936.86 km) |
| Heysham to Immenstadt im Allgau | 724.80 mi (1,166.45 km) |
| Heysham to Ingelheim | 543.19 mi (874.18 km) |
| Heysham to Ingolstadt | 715.11 mi (1,150.86 km) |
| Heysham to Iserlohn | 478.19 mi (769.57 km) |
| Heysham to Isernhagen-Sud | 538.10 mi (865.99 km) |
| Heysham to Ismaning | 746.50 mi (1,201.38 km) |
