| Langley Park to Jicin | 4,304.25 mi (6,927.02 km) |
| Langley Park to Jihlava | 4,348.27 mi (6,997.86 km) |
| Langley Park to Jindrichuv Hradec | 4,333.78 mi (6,974.54 km) |
| Langley Park to Jirkov | 4,228.34 mi (6,804.85 km) |
| Langley Park to Kadan | 4,225.40 mi (6,800.12 km) |
| Langley Park to Karlovy Vary | 4,214.39 mi (6,782.40 km) |
| Langley Park to Karvina | 4,446.85 mi (7,156.52 km) |
| Langley Park to Kladno | 4,265.06 mi (6,863.95 km) |
| Langley Park to Klasterec nad Ohri | 4,221.21 mi (6,793.39 km) |
| Langley Park to Klatovy | 4,257.82 mi (6,852.31 km) |
| Langley Park to Kolin | 4,311.97 mi (6,939.45 km) |
| Langley Park to Koprivnice | 4,440.60 mi (7,146.46 km) |
| Langley Park to Kralupy nad Vltavou | 4,270.35 mi (6,872.46 km) |
| Langley Park to Kraluv Dvur | 4,269.01 mi (6,870.30 km) |
| Langley Park to Krnov | 4,406.25 mi (7,091.17 km) |
