| Willow Grove to Sierpc | 4,255.99 mi (6,849.36 km) |
| Willow Grove to Skarzysko-Kamienna | 4,364.16 mi (7,023.44 km) |
| Willow Grove to Skawina | 4,364.52 mi (7,024.01 km) |
| Willow Grove to Skierniewice | 4,305.58 mi (6,929.16 km) |
| Willow Grove to Skoczow | 4,331.23 mi (6,970.45 km) |
| Willow Grove to Skwierzyna | 4,112.63 mi (6,618.63 km) |
| Willow Grove to Slawno | 4,099.54 mi (6,597.58 km) |
| Willow Grove to Slubice | 4,085.64 mi (6,575.20 km) |
| Willow Grove to Slupca | 4,210.18 mi (6,775.63 km) |
| Willow Grove to Slupsk | 4,108.76 mi (6,612.41 km) |
| Willow Grove to Sochaczew | 4,299.22 mi (6,918.92 km) |
| Willow Grove to Sokolka | 4,373.56 mi (7,038.57 km) |
| Willow Grove to Sokolow Podlaski | 4,366.05 mi (7,026.49 km) |
| Willow Grove to Solec Kujawski | 4,197.30 mi (6,754.90 km) |
| Willow Grove to Sopot | 4,163.78 mi (6,700.96 km) |
