| Constanta to Idar-Oberstein | 1,071.74 mi (1,724.79 km) |
| Constanta to Idstein | 1,039.06 mi (1,672.20 km) |
| Constanta to Illertissen | 927.64 mi (1,492.89 km) |
| Constanta to Illingen | 1,078.34 mi (1,735.42 km) |
| Constanta to Ilmenau | 939.19 mi (1,511.48 km) |
| Constanta to Ilsede | 1,012.67 mi (1,629.74 km) |
| Constanta to Ilsenburg | 981.48 mi (1,579.53 km) |
| Constanta to Ilsfeld | 976.63 mi (1,571.74 km) |
| Constanta to Ilvesheim | 1,013.27 mi (1,630.70 km) |
| Constanta to Immenstadt im Allgau | 914.23 mi (1,471.32 km) |
| Constanta to Ingelheim | 1,043.88 mi (1,679.97 km) |
| Constanta to Ingolstadt | 875.99 mi (1,409.76 km) |
| Constanta to Iserlohn | 1,088.49 mi (1,751.75 km) |
| Constanta to Isernhagen-Sud | 1,030.13 mi (1,657.83 km) |
| Constanta to Ismaning | 856.14 mi (1,377.82 km) |
