| Longford to Karditsa | 1,705.71 mi (2,745.07 km) |
| Longford to Kastoria | 1,625.36 mi (2,615.76 km) |
| Longford to Katerini | 1,684.16 mi (2,710.39 km) |
| Longford to Keratsini | 1,838.99 mi (2,959.57 km) |
| Longford to Kerkyra | 1,618.78 mi (2,605.18 km) |
| Longford to Kiato | 1,804.41 mi (2,903.92 km) |
| Longford to Kifisia | 1,840.67 mi (2,962.27 km) |
| Longford to Kilkis | 1,664.45 mi (2,678.67 km) |
| Longford to Komotini | 1,758.36 mi (2,829.81 km) |
| Longford to Korinthos | 1,814.64 mi (2,920.38 km) |
| Longford to Koropi | 1,851.96 mi (2,980.44 km) |
| Longford to Korydallos | 1,839.41 mi (2,960.24 km) |
| Longford to Kos | 2,031.82 mi (3,269.90 km) |
| Longford to Kozani | 1,655.31 mi (2,663.97 km) |
| Longford to Lagos | 1,744.51 mi (2,807.52 km) |
