| Idanha-a-Nova to Karditsa | 1,544.48 mi (2,485.60 km) |
| Idanha-a-Nova to Kastoria | 1,497.67 mi (2,410.27 km) |
| Idanha-a-Nova to Katerini | 1,564.38 mi (2,517.63 km) |
| Idanha-a-Nova to Keratsini | 1,655.09 mi (2,663.61 km) |
| Idanha-a-Nova to Kerkyra | 1,436.63 mi (2,312.03 km) |
| Idanha-a-Nova to Kiato | 1,608.57 mi (2,588.74 km) |
| Idanha-a-Nova to Kifisia | 1,663.65 mi (2,677.39 km) |
| Idanha-a-Nova to Kilkis | 1,576.48 mi (2,537.10 km) |
| Idanha-a-Nova to Komotini | 1,707.08 mi (2,747.29 km) |
| Idanha-a-Nova to Korinthos | 1,619.17 mi (2,605.81 km) |
| Idanha-a-Nova to Koropi | 1,669.78 mi (2,687.25 km) |
| Idanha-a-Nova to Korydallos | 1,656.56 mi (2,665.98 km) |
| Idanha-a-Nova to Kos | 1,867.06 mi (3,004.75 km) |
| Idanha-a-Nova to Kozani | 1,526.69 mi (2,456.97 km) |
| Idanha-a-Nova to Lagos | 1,687.21 mi (2,715.30 km) |
