| Hartford to Jicin | 4,008.00 mi (6,450.26 km) |
| Hartford to Jihlava | 4,051.85 mi (6,520.82 km) |
| Hartford to Jindrichuv Hradec | 4,037.31 mi (6,497.42 km) |
| Hartford to Jirkov | 3,931.97 mi (6,327.90 km) |
| Hartford to Kadan | 3,929.00 mi (6,323.12 km) |
| Hartford to Karlovy Vary | 3,917.95 mi (6,305.34 km) |
| Hartford to Karvina | 4,150.75 mi (6,679.98 km) |
| Hartford to Kladno | 3,968.67 mi (6,386.96 km) |
| Hartford to Klasterec nad Ohri | 3,924.82 mi (6,316.39 km) |
| Hartford to Klatovy | 3,961.33 mi (6,375.14 km) |
| Hartford to Kolin | 4,015.63 mi (6,462.53 km) |
| Hartford to Koprivnice | 4,144.40 mi (6,669.76 km) |
| Hartford to Kralupy nad Vltavou | 3,973.99 mi (6,395.52 km) |
| Hartford to Kraluv Dvur | 3,972.59 mi (6,393.27 km) |
| Hartford to Krnov | 4,110.12 mi (6,614.60 km) |
