| Philadelphia to Idar-Oberstein | 3,886.84 mi (6,255.26 km) |
| Philadelphia to Idstein | 3,911.39 mi (6,294.78 km) |
| Philadelphia to Illertissen | 4,044.56 mi (6,509.09 km) |
| Philadelphia to Illingen | 3,885.62 mi (6,253.30 km) |
| Philadelphia to Ilmenau | 4,003.38 mi (6,442.81 km) |
| Philadelphia to Ilsede | 3,928.53 mi (6,322.36 km) |
| Philadelphia to Ilsenburg | 3,959.33 mi (6,371.92 km) |
| Philadelphia to Ilsfeld | 3,985.10 mi (6,413.39 km) |
| Philadelphia to Ilvesheim | 3,944.81 mi (6,348.56 km) |
| Philadelphia to Immenstadt im Allgau | 4,070.28 mi (6,550.48 km) |
| Philadelphia to Ingelheim | 3,909.60 mi (6,291.89 km) |
| Philadelphia to Ingolstadt | 4,082.44 mi (6,570.05 km) |
| Philadelphia to Iserlohn | 3,854.73 mi (6,203.59 km) |
| Philadelphia to Isernhagen-Sud | 3,911.24 mi (6,294.54 km) |
| Philadelphia to Ismaning | 4,109.46 mi (6,613.54 km) |
