| Flensburg to Kamenz | 310.58 mi (499.83 km) |
| Flensburg to Kamp-Lintfort | 256.66 mi (413.05 km) |
| Flensburg to Kandel | 397.23 mi (639.28 km) |
| Flensburg to Kappeln | 21.41 mi (34.46 km) |
| Flensburg to Karben | 315.60 mi (507.92 km) |
| Flensburg to Karlsdorf-Neuthard | 391.91 mi (630.71 km) |
| Flensburg to Karlsfeld | 461.89 mi (743.33 km) |
| Flensburg to Karlsruhe | 401.27 mi (645.78 km) |
| Flensburg to Kassel | 239.50 mi (385.43 km) |
| Flensburg to Kaufbeuren | 479.60 mi (771.84 km) |
| Flensburg to Kaufering | 466.98 mi (751.53 km) |
| Flensburg to Kaufungen | 242.00 mi (389.46 km) |
| Flensburg to Kehl | 434.97 mi (700.02 km) |
| Flensburg to Kelheim | 418.24 mi (673.09 km) |
| Flensburg to Kelkheim (Taunus) | 323.55 mi (520.70 km) |
