| Langley Park to Idar-Oberstein | 4,007.46 mi (6,449.38 km) |
| Langley Park to Idstein | 4,031.86 mi (6,488.65 km) |
| Langley Park to Illertissen | 4,165.28 mi (6,703.38 km) |
| Langley Park to Illingen | 4,006.31 mi (6,447.53 km) |
| Langley Park to Ilmenau | 4,123.54 mi (6,636.20 km) |
| Langley Park to Ilsede | 4,048.30 mi (6,515.10 km) |
| Langley Park to Ilsenburg | 4,079.17 mi (6,564.79 km) |
| Langley Park to Ilsfeld | 4,105.73 mi (6,607.53 km) |
| Langley Park to Ilvesheim | 4,065.40 mi (6,542.64 km) |
| Langley Park to Immenstadt im Allgau | 4,191.08 mi (6,744.90 km) |
| Langley Park to Ingelheim | 4,030.12 mi (6,485.86 km) |
| Langley Park to Ingolstadt | 4,202.99 mi (6,764.07 km) |
| Langley Park to Iserlohn | 3,974.96 mi (6,397.07 km) |
| Langley Park to Isernhagen-Sud | 4,030.98 mi (6,487.24 km) |
| Langley Park to Ismaning | 4,230.10 mi (6,807.69 km) |
