| Waltham Cross to Karditsa | 1,352.19 mi (2,176.14 km) |
| Waltham Cross to Kastoria | 1,271.46 mi (2,046.21 km) |
| Waltham Cross to Katerini | 1,330.03 mi (2,140.48 km) |
| Waltham Cross to Keratsini | 1,485.48 mi (2,390.65 km) |
| Waltham Cross to Kerkyra | 1,266.59 mi (2,038.37 km) |
| Waltham Cross to Kiato | 1,451.41 mi (2,335.83 km) |
| Waltham Cross to Kifisia | 1,486.99 mi (2,393.08 km) |
| Waltham Cross to Kilkis | 1,310.34 mi (2,108.79 km) |
| Waltham Cross to Komotini | 1,405.37 mi (2,261.72 km) |
| Waltham Cross to Korinthos | 1,461.58 mi (2,352.18 km) |
| Waltham Cross to Koropi | 1,498.36 mi (2,411.38 km) |
| Waltham Cross to Korydallos | 1,485.87 mi (2,391.27 km) |
| Waltham Cross to Kos | 1,677.67 mi (2,699.94 km) |
| Waltham Cross to Kozani | 1,301.34 mi (2,094.30 km) |
| Waltham Cross to Lagos | 1,391.26 mi (2,239.01 km) |
