| Williamstown to Jicin | 4,193.50 mi (6,748.79 km) |
| Williamstown to Jihlava | 4,236.89 mi (6,818.62 km) |
| Williamstown to Jindrichuv Hradec | 4,222.11 mi (6,794.83 km) |
| Williamstown to Jirkov | 4,117.20 mi (6,625.99 km) |
| Williamstown to Kadan | 4,114.14 mi (6,621.07 km) |
| Williamstown to Karlovy Vary | 4,102.95 mi (6,603.05 km) |
| Williamstown to Karvina | 4,336.49 mi (6,978.91 km) |
| Williamstown to Kladno | 4,153.83 mi (6,684.95 km) |
| Williamstown to Klasterec nad Ohri | 4,109.94 mi (6,614.31 km) |
| Williamstown to Klatovy | 4,145.94 mi (6,672.24 km) |
| Williamstown to Kolin | 4,200.92 mi (6,760.72 km) |
| Williamstown to Koprivnice | 4,329.97 mi (6,968.42 km) |
| Williamstown to Kralupy nad Vltavou | 4,159.23 mi (6,693.63 km) |
| Williamstown to Kraluv Dvur | 4,157.64 mi (6,691.07 km) |
| Williamstown to Krnov | 4,295.83 mi (6,913.47 km) |
