| Helensburgh to Karditsa | 1,671.62 mi (2,690.21 km) |
| Helensburgh to Kastoria | 1,587.92 mi (2,555.51 km) |
| Helensburgh to Katerini | 1,642.28 mi (2,642.99 km) |
| Helensburgh to Keratsini | 1,804.16 mi (2,903.52 km) |
| Helensburgh to Kerkyra | 1,593.22 mi (2,564.05 km) |
| Helensburgh to Kiato | 1,773.45 mi (2,854.09 km) |
| Helensburgh to Kifisia | 1,804.33 mi (2,903.79 km) |
| Helensburgh to Kilkis | 1,616.75 mi (2,601.90 km) |
| Helensburgh to Komotini | 1,698.92 mi (2,734.14 km) |
| Helensburgh to Korinthos | 1,783.19 mi (2,869.77 km) |
| Helensburgh to Koropi | 1,816.28 mi (2,923.02 km) |
| Helensburgh to Korydallos | 1,804.34 mi (2,903.81 km) |
| Helensburgh to Kos | 1,986.31 mi (3,196.66 km) |
| Helensburgh to Kozani | 1,616.64 mi (2,601.73 km) |
| Helensburgh to Lagos | 1,686.89 mi (2,714.79 km) |
