| West Islip to Jicin | 4,080.57 mi (6,567.03 km) |
| West Islip to Jihlava | 4,123.83 mi (6,636.66 km) |
| West Islip to Jindrichuv Hradec | 4,109.00 mi (6,612.79 km) |
| West Islip to Jirkov | 4,004.18 mi (6,444.11 km) |
| West Islip to Kadan | 4,001.10 mi (6,439.14 km) |
| West Islip to Karlovy Vary | 3,989.87 mi (6,421.08 km) |
| West Islip to Karvina | 4,223.64 mi (6,797.29 km) |
| West Islip to Kladno | 4,040.80 mi (6,503.04 km) |
| West Islip to Klasterec nad Ohri | 3,996.90 mi (6,432.38 km) |
| West Islip to Klatovy | 4,032.79 mi (6,490.16 km) |
| West Islip to Kolin | 4,087.91 mi (6,578.86 km) |
| West Islip to Koprivnice | 4,217.06 mi (6,786.70 km) |
| West Islip to Kralupy nad Vltavou | 4,046.22 mi (6,511.75 km) |
| West Islip to Kraluv Dvur | 4,044.57 mi (6,509.11 km) |
| West Islip to Krnov | 4,182.97 mi (6,731.84 km) |
