| Philadelphia to Sierpc | 4,263.61 mi (6,861.62 km) |
| Philadelphia to Skarzysko-Kamienna | 4,371.65 mi (7,035.48 km) |
| Philadelphia to Skawina | 4,371.84 mi (7,035.80 km) |
| Philadelphia to Skierniewice | 4,313.12 mi (6,941.30 km) |
| Philadelphia to Skoczow | 4,338.50 mi (6,982.13 km) |
| Philadelphia to Skwierzyna | 4,120.07 mi (6,630.61 km) |
| Philadelphia to Slawno | 4,107.21 mi (6,609.92 km) |
| Philadelphia to Slubice | 4,093.02 mi (6,587.08 km) |
| Philadelphia to Slupca | 4,217.67 mi (6,787.69 km) |
| Philadelphia to Slupsk | 4,116.46 mi (6,624.79 km) |
| Philadelphia to Sochaczew | 4,306.79 mi (6,931.11 km) |
| Philadelphia to Sokolka | 4,381.37 mi (7,051.13 km) |
| Philadelphia to Sokolow Podlaski | 4,373.72 mi (7,038.82 km) |
| Philadelphia to Solec Kujawski | 4,204.88 mi (6,767.11 km) |
| Philadelphia to Sopot | 4,171.52 mi (6,713.42 km) |
