| London Colney to Karditsa | 1,363.46 mi (2,194.27 km) |
| London Colney to Kastoria | 1,282.80 mi (2,064.47 km) |
| London Colney to Katerini | 1,341.46 mi (2,158.86 km) |
| London Colney to Keratsini | 1,496.75 mi (2,408.78 km) |
| London Colney to Kerkyra | 1,277.67 mi (2,056.21 km) |
| London Colney to Kiato | 1,462.60 mi (2,353.83 km) |
| London Colney to Kifisia | 1,498.29 mi (2,411.27 km) |
| London Colney to Kilkis | 1,321.86 mi (2,127.33 km) |
| London Colney to Komotini | 1,417.02 mi (2,280.48 km) |
| London Colney to Korinthos | 1,472.78 mi (2,370.20 km) |
| London Colney to Koropi | 1,509.64 mi (2,429.54 km) |
| London Colney to Korydallos | 1,497.14 mi (2,409.42 km) |
| London Colney to Kos | 1,689.11 mi (2,718.37 km) |
| London Colney to Kozani | 1,312.70 mi (2,112.59 km) |
| London Colney to Lagos | 1,402.89 mi (2,257.74 km) |
