| Duluth to Jozefow | 4,552.61 mi (7,326.72 km) |
| Duluth to Kalisz | 4,477.21 mi (7,205.37 km) |
| Duluth to Kamien Pomorski | 4,271.98 mi (6,875.09 km) |
| Duluth to Kamienna Gora | 4,460.93 mi (7,179.18 km) |
| Duluth to Karczew | 4,555.60 mi (7,331.54 km) |
| Duluth to Kartuzy | 4,356.40 mi (7,010.94 km) |
| Duluth to Katowice | 4,579.03 mi (7,369.23 km) |
| Duluth to Kedzierzyn-Kozle | 4,549.67 mi (7,321.98 km) |
| Duluth to Kepno | 4,497.34 mi (7,237.77 km) |
| Duluth to Ketrzyn | 4,459.66 mi (7,177.13 km) |
| Duluth to Kety | 4,603.39 mi (7,408.43 km) |
| Duluth to Kielce | 4,597.93 mi (7,399.66 km) |
| Duluth to Kielczow | 4,479.48 mi (7,209.02 km) |
| Duluth to Klobuck | 4,544.36 mi (7,313.44 km) |
| Duluth to Klodzko | 4,497.18 mi (7,237.51 km) |
