| Willoughby to Jicin | 4,342.74 mi (6,988.97 km) |
| Willoughby to Jihlava | 4,391.39 mi (7,067.26 km) |
| Willoughby to Jindrichuv Hradec | 4,379.31 mi (7,047.81 km) |
| Willoughby to Jirkov | 4,270.08 mi (6,872.03 km) |
| Willoughby to Kadan | 4,268.10 mi (6,868.84 km) |
| Willoughby to Karlovy Vary | 4,258.56 mi (6,853.49 km) |
| Willoughby to Karvina | 4,481.92 mi (7,212.96 km) |
| Willoughby to Kladno | 4,307.35 mi (6,932.00 km) |
| Willoughby to Klasterec nad Ohri | 4,264.06 mi (6,862.34 km) |
| Willoughby to Klatovy | 4,305.41 mi (6,928.89 km) |
| Willoughby to Kolin | 4,352.77 mi (7,005.11 km) |
| Willoughby to Koprivnice | 4,477.69 mi (7,206.15 km) |
| Willoughby to Kralupy nad Vltavou | 4,311.78 mi (6,939.14 km) |
| Willoughby to Kraluv Dvur | 4,312.42 mi (6,940.17 km) |
| Willoughby to Krnov | 4,441.87 mi (7,148.50 km) |
