| Delaware to Sierpc | 4,528.29 mi (7,287.59 km) |
| Delaware to Skarzysko-Kamienna | 4,642.92 mi (7,472.05 km) |
| Delaware to Skawina | 4,651.17 mi (7,485.34 km) |
| Delaware to Skierniewice | 4,581.64 mi (7,373.44 km) |
| Delaware to Skoczow | 4,620.97 mi (7,436.74 km) |
| Delaware to Skwierzyna | 4,394.56 mi (7,072.36 km) |
| Delaware to Slawno | 4,369.71 mi (7,032.37 km) |
| Delaware to Slubice | 4,370.65 mi (7,033.87 km) |
| Delaware to Slupca | 4,489.13 mi (7,224.56 km) |
| Delaware to Slupsk | 4,377.67 mi (7,045.18 km) |
| Delaware to Sochaczew | 4,573.74 mi (7,360.72 km) |
| Delaware to Sokolka | 4,635.17 mi (7,459.58 km) |
| Delaware to Sokolow Podlaski | 4,635.48 mi (7,460.09 km) |
| Delaware to Solec Kujawski | 4,471.40 mi (7,196.02 km) |
| Delaware to Sopot | 4,429.86 mi (7,129.16 km) |
