| Flensburg to Kastoria | 1,125.54 mi (1,811.38 km) |
| Flensburg to Katerini | 1,169.31 mi (1,881.83 km) |
| Flensburg to Keratsini | 1,338.41 mi (2,153.97 km) |
| Flensburg to Kerkyra | 1,154.28 mi (1,857.63 km) |
| Flensburg to Kiato | 1,316.01 mi (2,117.91 km) |
| Flensburg to Kifisia | 1,335.81 mi (2,149.78 km) |
| Flensburg to Kilkis | 1,134.23 mi (1,825.37 km) |
| Flensburg to Komotini | 1,194.38 mi (1,922.17 km) |
| Flensburg to Korinthos | 1,324.48 mi (2,131.54 km) |
| Flensburg to Koropi | 1,348.56 mi (2,170.30 km) |
| Flensburg to Korydallos | 1,338.15 mi (2,153.54 km) |
| Flensburg to Kos | 1,497.10 mi (2,409.34 km) |
| Flensburg to Kozani | 1,150.66 mi (1,851.81 km) |
| Flensburg to Lagos | 1,185.52 mi (1,907.91 km) |
| Flensburg to Lamia | 1,252.94 mi (2,016.41 km) |
