| Alfter to Santander | 713.62 mi (1,148.46 km) |
| Alfter to Santany | 808.58 mi (1,301.29 km) |
| Alfter to Santiago de Compostela | 911.21 mi (1,466.45 km) |
| Alfter to Santiago del Teide | 1,985.86 mi (3,195.93 km) |
| Alfter to Santiponce | 1,120.73 mi (1,803.64 km) |
| Alfter to Santomera | 960.44 mi (1,545.67 km) |
| Alfter to Santona | 703.29 mi (1,131.84 km) |
| Alfter to Santurce-Antiguo | 695.47 mi (1,119.24 km) |
| Alfter to Sarria | 873.81 mi (1,406.26 km) |
| Alfter to Sauzal | 1,962.86 mi (3,158.91 km) |
| Alfter to Sedavi | 859.55 mi (1,383.32 km) |
| Alfter to Segorbe | 834.63 mi (1,343.21 km) |
| Alfter to Segovia | 860.70 mi (1,385.16 km) |
| Alfter to Senmanat | 671.97 mi (1,081.43 km) |
| Alfter to Sesena | 897.62 mi (1,444.57 km) |
