| Southborough to Jicin | 659.56 mi (1,061.46 km) |
| Southborough to Jihlava | 686.18 mi (1,104.30 km) |
| Southborough to Jindrichuv Hradec | 665.96 mi (1,071.75 km) |
| Southborough to Jirkov | 576.33 mi (927.51 km) |
| Southborough to Kadan | 570.18 mi (917.61 km) |
| Southborough to Karlovy Vary | 554.81 mi (892.88 km) |
| Southborough to Karvina | 806.09 mi (1,297.28 km) |
| Southborough to Kladno | 609.11 mi (980.27 km) |
| Southborough to Klasterec nad Ohri | 565.74 mi (910.47 km) |
| Southborough to Klatovy | 587.27 mi (945.12 km) |
| Southborough to Kolin | 658.58 mi (1,059.88 km) |
| Southborough to Koprivnice | 793.11 mi (1,276.39 km) |
| Southborough to Kralupy nad Vltavou | 617.01 mi (992.98 km) |
| Southborough to Kraluv Dvur | 609.27 mi (980.53 km) |
| Southborough to Krnov | 765.89 mi (1,232.58 km) |
