| Portlethen to Idar-Oberstein | 638.54 mi (1,027.64 km) |
| Portlethen to Idstein | 635.03 mi (1,021.98 km) |
| Portlethen to Illertissen | 794.87 mi (1,279.22 km) |
| Portlethen to Illingen | 651.65 mi (1,048.73 km) |
| Portlethen to Ilmenau | 688.47 mi (1,107.99 km) |
| Portlethen to Ilsede | 591.82 mi (952.44 km) |
| Portlethen to Ilsenburg | 625.78 mi (1,007.09 km) |
| Portlethen to Ilsfeld | 725.91 mi (1,168.24 km) |
| Portlethen to Ilvesheim | 684.20 mi (1,101.12 km) |
| Portlethen to Immenstadt im Allgau | 835.40 mi (1,344.44 km) |
| Portlethen to Ingelheim | 642.72 mi (1,034.36 km) |
| Portlethen to Ingolstadt | 802.03 mi (1,290.75 km) |
| Portlethen to Iserlohn | 556.22 mi (895.15 km) |
| Portlethen to Isernhagen-Sud | 573.84 mi (923.51 km) |
| Portlethen to Ismaning | 838.06 mi (1,348.72 km) |
