| Illescas to Sierpc | 1,412.66 mi (2,273.45 km) |
| Illescas to Skarzysko-Kamienna | 1,406.67 mi (2,263.82 km) |
| Illescas to Skawina | 1,332.88 mi (2,145.06 km) |
| Illescas to Skierniewice | 1,401.21 mi (2,255.04 km) |
| Illescas to Skoczow | 1,285.04 mi (2,068.07 km) |
| Illescas to Skwierzyna | 1,255.03 mi (2,019.78 km) |
| Illescas to Slawno | 1,366.37 mi (2,198.96 km) |
| Illescas to Slubice | 1,213.15 mi (1,952.37 km) |
| Illescas to Slupca | 1,327.08 mi (2,135.73 km) |
| Illescas to Slupsk | 1,382.19 mi (2,224.43 km) |
| Illescas to Sochaczew | 1,412.60 mi (2,273.36 km) |
| Illescas to Sokolka | 1,570.46 mi (2,527.41 km) |
| Illescas to Sokolow Podlaski | 1,494.45 mi (2,405.08 km) |
| Illescas to Solec Kujawski | 1,368.37 mi (2,202.17 km) |
| Illescas to Sopot | 1,431.58 mi (2,303.91 km) |
