| Johnston to Jicin | 4,771.91 mi (7,679.65 km) |
| Johnston to Jihlava | 4,827.03 mi (7,768.35 km) |
| Johnston to Jindrichuv Hradec | 4,818.76 mi (7,755.05 km) |
| Johnston to Jirkov | 4,705.26 mi (7,572.38 km) |
| Johnston to Kadan | 4,704.75 mi (7,571.56 km) |
| Johnston to Karlovy Vary | 4,697.58 mi (7,560.03 km) |
| Johnston to Karvina | 4,903.86 mi (7,892.00 km) |
| Johnston to Kladno | 4,742.83 mi (7,632.85 km) |
| Johnston to Klasterec nad Ohri | 4,700.98 mi (7,565.50 km) |
| Johnston to Klatovy | 4,748.95 mi (7,642.70 km) |
| Johnston to Kolin | 4,785.36 mi (7,701.30 km) |
| Johnston to Koprivnice | 4,902.83 mi (7,890.35 km) |
| Johnston to Kralupy nad Vltavou | 4,745.90 mi (7,637.79 km) |
| Johnston to Kraluv Dvur | 4,749.55 mi (7,643.66 km) |
| Johnston to Krnov | 4,865.22 mi (7,829.82 km) |
