| Hwlffordd to Karditsa | 1,544.36 mi (2,485.40 km) |
| Hwlffordd to Kastoria | 1,465.72 mi (2,358.86 km) |
| Hwlffordd to Katerini | 1,526.15 mi (2,456.09 km) |
| Hwlffordd to Keratsini | 1,677.44 mi (2,699.57 km) |
| Hwlffordd to Kerkyra | 1,454.53 mi (2,340.84 km) |
| Hwlffordd to Kiato | 1,641.48 mi (2,641.71 km) |
| Hwlffordd to Kifisia | 1,679.71 mi (2,703.24 km) |
| Hwlffordd to Kilkis | 1,509.16 mi (2,428.76 km) |
| Hwlffordd to Komotini | 1,608.36 mi (2,588.41 km) |
| Hwlffordd to Korinthos | 1,651.86 mi (2,658.42 km) |
| Hwlffordd to Koropi | 1,690.70 mi (2,720.92 km) |
| Hwlffordd to Korydallos | 1,677.95 mi (2,700.40 km) |
| Hwlffordd to Kos | 1,874.07 mi (3,016.02 km) |
| Hwlffordd to Kozani | 1,496.06 mi (2,407.68 km) |
| Hwlffordd to Lagos | 1,593.65 mi (2,564.73 km) |
