| Luton to Karditsa | 1,372.98 mi (2,209.59 km) |
| Luton to Kastoria | 1,292.16 mi (2,079.53 km) |
| Luton to Katerini | 1,350.63 mi (2,173.64 km) |
| Luton to Keratsini | 1,506.26 mi (2,424.10 km) |
| Luton to Kerkyra | 1,287.51 mi (2,072.05 km) |
| Luton to Kiato | 1,472.27 mi (2,369.39 km) |
| Luton to Kifisia | 1,507.75 mi (2,426.48 km) |
| Luton to Kilkis | 1,330.77 mi (2,141.66 km) |
| Luton to Komotini | 1,425.39 mi (2,293.95 km) |
| Luton to Korinthos | 1,482.42 mi (2,385.73 km) |
| Luton to Koropi | 1,519.13 mi (2,444.80 km) |
| Luton to Korydallos | 1,506.65 mi (2,424.72 km) |
| Luton to Kos | 1,698.22 mi (2,733.02 km) |
| Luton to Kozani | 1,322.02 mi (2,127.58 km) |
| Luton to Lagos | 1,411.35 mi (2,271.34 km) |
