| Portalegre to Senftenberg | 1,329.66 mi (2,139.88 km) |
| Portalegre to Siegburg | 1,063.32 mi (1,711.24 km) |
| Portalegre to Siegen | 1,093.51 mi (1,759.83 km) |
| Portalegre to Sigmaringen | 1,024.74 mi (1,649.16 km) |
| Portalegre to Simbach am Inn | 1,186.50 mi (1,909.49 km) |
| Portalegre to Simmerath | 1,025.00 mi (1,649.57 km) |
| Portalegre to Sindelfingen | 1,038.88 mi (1,671.92 km) |
| Portalegre to Sinsheim | 1,054.83 mi (1,697.58 km) |
| Portalegre to Sinzheim | 1,008.97 mi (1,623.79 km) |
| Portalegre to Sinzig | 1,052.97 mi (1,694.59 km) |
| Portalegre to Soest | 1,128.16 mi (1,815.59 km) |
| Portalegre to Solingen | 1,076.77 mi (1,732.90 km) |
| Portalegre to Soltau | 1,247.77 mi (2,008.10 km) |
| Portalegre to Sommerda | 1,211.41 mi (1,949.57 km) |
| Portalegre to Sondershausen | 1,210.92 mi (1,948.78 km) |
