| Os to Karditsa | 1,606.78 mi (2,585.86 km) |
| Os to Kastoria | 1,520.26 mi (2,446.62 km) |
| Os to Katerini | 1,560.31 mi (2,511.07 km) |
| Os to Keratsini | 1,730.08 mi (2,784.30 km) |
| Os to Kerkyra | 1,553.88 mi (2,500.73 km) |
| Os to Kiato | 1,710.33 mi (2,752.51 km) |
| Os to Kifisia | 1,726.59 mi (2,778.68 km) |
| Os to Kilkis | 1,522.10 mi (2,449.58 km) |
| Os to Komotini | 1,570.24 mi (2,527.06 km) |
| Os to Korinthos | 1,718.38 mi (2,765.46 km) |
| Os to Koropi | 1,739.50 mi (2,799.45 km) |
| Os to Korydallos | 1,729.68 mi (2,783.65 km) |
| Os to Kos | 1,877.68 mi (3,021.84 km) |
| Os to Kozani | 1,544.09 mi (2,484.98 km) |
| Os to Lagos | 1,563.44 mi (2,516.11 km) |
