| Seaham to Jicin | 760.72 mi (1,224.27 km) |
| Seaham to Jihlava | 807.78 mi (1,300.00 km) |
| Seaham to Jindrichuv Hradec | 796.22 mi (1,281.39 km) |
| Seaham to Jirkov | 686.54 mi (1,104.88 km) |
| Seaham to Kadan | 684.49 mi (1,101.57 km) |
| Seaham to Karlovy Vary | 675.19 mi (1,086.62 km) |
| Seaham to Karvina | 903.23 mi (1,453.60 km) |
| Seaham to Kladno | 723.75 mi (1,164.77 km) |
| Seaham to Klasterec nad Ohri | 680.45 mi (1,095.08 km) |
| Seaham to Klatovy | 723.88 mi (1,164.97 km) |
| Seaham to Kolin | 769.52 mi (1,238.43 km) |
| Seaham to Koprivnice | 896.89 mi (1,443.41 km) |
| Seaham to Kralupy nad Vltavou | 728.32 mi (1,172.12 km) |
| Seaham to Kraluv Dvur | 728.85 mi (1,172.96 km) |
| Seaham to Krnov | 862.56 mi (1,388.15 km) |
