| Mariehamn to Idstein | 820.65 mi (1,320.70 km) |
| Mariehamn to Illertissen | 910.40 mi (1,465.15 km) |
| Mariehamn to Illingen | 898.23 mi (1,445.56 km) |
| Mariehamn to Ilmenau | 739.02 mi (1,189.34 km) |
| Mariehamn to Ilsede | 656.94 mi (1,057.25 km) |
| Mariehamn to Ilsenburg | 670.51 mi (1,079.08 km) |
| Mariehamn to Ilsfeld | 872.74 mi (1,404.54 km) |
| Mariehamn to Ilvesheim | 860.03 mi (1,384.08 km) |
| Mariehamn to Immenstadt im Allgau | 949.98 mi (1,528.85 km) |
| Mariehamn to Ingelheim | 840.19 mi (1,352.15 km) |
| Mariehamn to Ingolstadt | 853.07 mi (1,372.88 km) |
| Mariehamn to Iserlohn | 765.82 mi (1,232.46 km) |
| Mariehamn to Isernhagen-Sud | 654.23 mi (1,052.88 km) |
| Mariehamn to Ismaning | 884.24 mi (1,423.04 km) |
| Mariehamn to Isny im Allgau | 944.86 mi (1,520.61 km) |
