| Portsmouth to Jicin | 719.58 mi (1,158.05 km) |
| Portsmouth to Jihlava | 743.84 mi (1,197.09 km) |
| Portsmouth to Jindrichuv Hradec | 722.64 mi (1,162.98 km) |
| Portsmouth to Jirkov | 636.05 mi (1,023.62 km) |
| Portsmouth to Kadan | 629.53 mi (1,013.14 km) |
| Portsmouth to Karlovy Vary | 613.64 mi (987.56 km) |
| Portsmouth to Karvina | 865.74 mi (1,393.28 km) |
| Portsmouth to Kladno | 668.12 mi (1,075.24 km) |
| Portsmouth to Klasterec nad Ohri | 625.09 mi (1,005.98 km) |
| Portsmouth to Klatovy | 643.76 mi (1,036.03 km) |
| Portsmouth to Kolin | 717.63 mi (1,154.92 km) |
| Portsmouth to Koprivnice | 852.17 mi (1,371.43 km) |
| Portsmouth to Kralupy nad Vltavou | 676.32 mi (1,088.43 km) |
| Portsmouth to Kraluv Dvur | 667.74 mi (1,074.62 km) |
| Portsmouth to Krnov | 825.76 mi (1,328.93 km) |
