| Waltham to Karditsa | 4,605.96 mi (7,412.57 km) |
| Waltham to Kastoria | 4,531.23 mi (7,292.31 km) |
| Waltham to Katerini | 4,593.81 mi (7,393.02 km) |
| Waltham to Keratsini | 4,737.47 mi (7,624.23 km) |
| Waltham to Kerkyra | 4,509.52 mi (7,257.37 km) |
| Waltham to Kiato | 4,698.20 mi (7,561.03 km) |
| Waltham to Kifisia | 4,741.14 mi (7,630.13 km) |
| Waltham to Kilkis | 4,579.84 mi (7,370.55 km) |
| Waltham to Komotini | 4,681.13 mi (7,533.55 km) |
| Waltham to Korinthos | 4,708.90 mi (7,578.25 km) |
| Waltham to Koropi | 4,751.35 mi (7,646.55 km) |
| Waltham to Korydallos | 4,738.21 mi (7,625.41 km) |
| Waltham to Kos | 4,940.61 mi (7,951.15 km) |
| Waltham to Kozani | 4,562.02 mi (7,341.86 km) |
| Waltham to Lagos | 4,666.34 mi (7,509.75 km) |
