| Portalegre to Karditsa | 1,560.46 mi (2,511.32 km) |
| Portalegre to Kastoria | 1,515.58 mi (2,439.09 km) |
| Portalegre to Katerini | 1,582.07 mi (2,546.10 km) |
| Portalegre to Keratsini | 1,669.14 mi (2,686.22 km) |
| Portalegre to Kerkyra | 1,452.62 mi (2,337.76 km) |
| Portalegre to Kiato | 1,622.42 mi (2,611.03 km) |
| Portalegre to Kifisia | 1,677.96 mi (2,700.42 km) |
| Portalegre to Kilkis | 1,595.46 mi (2,567.64 km) |
| Portalegre to Komotini | 1,726.64 mi (2,778.75 km) |
| Portalegre to Korinthos | 1,632.96 mi (2,627.99 km) |
| Portalegre to Koropi | 1,683.80 mi (2,709.82 km) |
| Portalegre to Korydallos | 1,670.65 mi (2,688.65 km) |
| Portalegre to Kos | 1,880.58 mi (3,026.50 km) |
| Portalegre to Kozani | 1,544.31 mi (2,485.32 km) |
| Portalegre to Lagos | 1,706.65 mi (2,746.59 km) |
