| Norristown to Idar-Oberstein | 3,890.18 mi (6,260.64 km) |
| Norristown to Idstein | 3,914.54 mi (6,299.84 km) |
| Norristown to Illertissen | 4,048.05 mi (6,514.71 km) |
| Norristown to Illingen | 3,889.06 mi (6,258.84 km) |
| Norristown to Ilmenau | 4,006.21 mi (6,447.38 km) |
| Norristown to Ilsede | 3,931.03 mi (6,326.38 km) |
| Norristown to Ilsenburg | 3,961.89 mi (6,376.04 km) |
| Norristown to Ilsfeld | 3,988.45 mi (6,418.80 km) |
| Norristown to Ilvesheim | 3,948.12 mi (6,353.88 km) |
| Norristown to Immenstadt im Allgau | 4,073.91 mi (6,556.33 km) |
| Norristown to Ingelheim | 3,912.82 mi (6,297.07 km) |
| Norristown to Ingolstadt | 4,085.70 mi (6,575.29 km) |
| Norristown to Iserlohn | 3,857.62 mi (6,208.25 km) |
| Norristown to Isernhagen-Sud | 3,913.72 mi (6,298.52 km) |
| Norristown to Ismaning | 4,112.83 mi (6,618.96 km) |
