| Dubuque to Jicin | 4,628.40 mi (7,448.69 km) |
| Dubuque to Jihlava | 4,682.49 mi (7,535.74 km) |
| Dubuque to Jindrichuv Hradec | 4,673.58 mi (7,521.40 km) |
| Dubuque to Jirkov | 4,560.66 mi (7,339.67 km) |
| Dubuque to Kadan | 4,559.90 mi (7,338.46 km) |
| Dubuque to Karlovy Vary | 4,552.34 mi (7,326.28 km) |
| Dubuque to Karvina | 4,761.74 mi (7,663.28 km) |
| Dubuque to Kladno | 4,598.23 mi (7,400.13 km) |
| Dubuque to Klasterec nad Ohri | 4,556.09 mi (7,332.31 km) |
| Dubuque to Klatovy | 4,603.02 mi (7,407.84 km) |
| Dubuque to Kolin | 4,641.29 mi (7,469.43 km) |
| Dubuque to Koprivnice | 4,760.16 mi (7,660.74 km) |
| Dubuque to Kralupy nad Vltavou | 4,601.53 mi (7,405.44 km) |
| Dubuque to Kraluv Dvur | 4,604.68 mi (7,410.51 km) |
| Dubuque to Krnov | 4,722.81 mi (7,600.63 km) |
