| Cities | Distance |
| Illescas to Schlieren | 791.45 mi (1,273.72 km) |
| Illescas to Schubelbach | 801.24 mi (1,289.47 km) |
| Illescas to Schwyz | 784.45 mi (1,262.45 km) |
| Illescas to Sierre | 713.11 mi (1,147.64 km) |
| Illescas to Sion | 703.92 mi (1,132.85 km) |
| Illescas to Solothurn | 749.23 mi (1,205.77 km) |
| Illescas to Spiez | 732.99 mi (1,179.63 km) |
| Illescas to Spreitenbach | 788.93 mi (1,269.66 km) |
| Illescas to Stafa | 796.05 mi (1,281.13 km) |
| Illescas to Stans | 770.09 mi (1,239.34 km) |
| Illescas to Steffisburg | 734.93 mi (1,182.76 km) |
| Illescas to Stegen | 806.73 mi (1,298.31 km) |
| Illescas to Steinhaus | 784.89 mi (1,263.16 km) |
| Illescas to Suhr | 776.36 mi (1,249.43 km) |
| Illescas to Sursee | 769.41 mi (1,238.25 km) |