| Herndon to Jicin | 4,320.85 mi (6,953.74 km) |
| Herndon to Jihlava | 4,365.10 mi (7,024.95 km) |
| Herndon to Jindrichuv Hradec | 4,350.72 mi (7,001.81 km) |
| Herndon to Jirkov | 4,245.08 mi (6,831.80 km) |
| Herndon to Kadan | 4,242.19 mi (6,827.14 km) |
| Herndon to Karlovy Vary | 4,231.25 mi (6,809.53 km) |
| Herndon to Karvina | 4,463.31 mi (7,183.01 km) |
| Herndon to Kladno | 4,281.84 mi (6,890.95 km) |
| Herndon to Klasterec nad Ohri | 4,238.01 mi (6,820.42 km) |
| Herndon to Klatovy | 4,274.85 mi (6,879.71 km) |
| Herndon to Kolin | 4,328.69 mi (6,966.35 km) |
| Herndon to Koprivnice | 4,457.16 mi (7,173.11 km) |
| Herndon to Kralupy nad Vltavou | 4,287.09 mi (6,899.40 km) |
| Herndon to Kraluv Dvur | 4,285.84 mi (6,897.39 km) |
| Herndon to Krnov | 4,422.73 mi (7,117.69 km) |
