| Harker Heights to Idar-Oberstein | 5,215.87 mi (8,394.13 km) |
| Harker Heights to Idstein | 5,233.88 mi (8,423.12 km) |
| Harker Heights to Illertissen | 5,377.26 mi (8,653.87 km) |
| Harker Heights to Illingen | 5,217.86 mi (8,397.34 km) |
| Harker Heights to Ilmenau | 5,314.59 mi (8,553.01 km) |
| Harker Heights to Ilsede | 5,228.33 mi (8,414.18 km) |
| Harker Heights to Ilsenburg | 5,261.17 mi (8,467.04 km) |
| Harker Heights to Ilsfeld | 5,313.97 mi (8,552.01 km) |
| Harker Heights to Ilvesheim | 5,272.34 mi (8,485.01 km) |
| Harker Heights to Immenstadt im Allgau | 5,407.21 mi (8,702.07 km) |
| Harker Heights to Ingelheim | 5,234.61 mi (8,424.30 km) |
| Harker Heights to Ingolstadt | 5,407.30 mi (8,702.21 km) |
| Harker Heights to Iserlohn | 5,169.33 mi (8,319.24 km) |
| Harker Heights to Isernhagen-Sud | 5,210.50 mi (8,385.49 km) |
| Harker Heights to Ismaning | 5,437.58 mi (8,750.94 km) |
