| Alcala la Real to Senftenberg | 1,306.77 mi (2,103.04 km) |
| Alcala la Real to Siegburg | 1,072.13 mi (1,725.43 km) |
| Alcala la Real to Siegen | 1,097.49 mi (1,766.25 km) |
| Alcala la Real to Sigmaringen | 989.14 mi (1,591.87 km) |
| Alcala la Real to Simbach am Inn | 1,133.04 mi (1,823.45 km) |
| Alcala la Real to Simmerath | 1,038.50 mi (1,671.30 km) |
| Alcala la Real to Sindelfingen | 1,012.36 mi (1,629.24 km) |
| Alcala la Real to Sinsheim | 1,035.43 mi (1,666.36 km) |
| Alcala la Real to Sinzheim | 988.63 mi (1,591.04 km) |
| Alcala la Real to Sinzig | 1,058.88 mi (1,704.11 km) |
| Alcala la Real to Soest | 1,138.18 mi (1,831.72 km) |
| Alcala la Real to Solingen | 1,089.99 mi (1,754.17 km) |
| Alcala la Real to Soltau | 1,259.96 mi (2,027.71 km) |
| Alcala la Real to Sommerda | 1,199.30 mi (1,930.09 km) |
| Alcala la Real to Sondershausen | 1,202.24 mi (1,934.82 km) |
