| Allentown to Jicin | 4,169.91 mi (6,710.82 km) |
| Allentown to Jihlava | 4,214.36 mi (6,782.36 km) |
| Allentown to Jindrichuv Hradec | 4,200.10 mi (6,759.41 km) |
| Allentown to Jirkov | 4,094.26 mi (6,589.08 km) |
| Allentown to Kadan | 4,091.41 mi (6,584.49 km) |
| Allentown to Karlovy Vary | 4,080.54 mi (6,566.99 km) |
| Allentown to Karvina | 4,312.25 mi (6,939.90 km) |
| Allentown to Kladno | 4,131.05 mi (6,648.28 km) |
| Allentown to Klasterec nad Ohri | 4,087.24 mi (6,577.78 km) |
| Allentown to Klatovy | 4,124.33 mi (6,637.47 km) |
| Allentown to Kolin | 4,177.84 mi (6,723.58 km) |
| Allentown to Koprivnice | 4,306.17 mi (6,930.12 km) |
| Allentown to Kralupy nad Vltavou | 4,136.26 mi (6,656.67 km) |
| Allentown to Kraluv Dvur | 4,135.10 mi (6,654.81 km) |
| Allentown to Krnov | 4,271.68 mi (6,874.61 km) |
