| Prospect Heights to Sierpc | 4,592.24 mi (7,390.50 km) |
| Prospect Heights to Skarzysko-Kamienna | 4,711.63 mi (7,582.64 km) |
| Prospect Heights to Skawina | 4,726.64 mi (7,606.80 km) |
| Prospect Heights to Skierniewice | 4,648.44 mi (7,480.94 km) |
| Prospect Heights to Skoczow | 4,699.31 mi (7,562.80 km) |
| Prospect Heights to Skwierzyna | 4,467.52 mi (7,189.79 km) |
| Prospect Heights to Slawno | 4,432.89 mi (7,134.05 km) |
| Prospect Heights to Slubice | 4,446.40 mi (7,155.79 km) |
| Prospect Heights to Slupca | 4,558.97 mi (7,336.95 km) |
| Prospect Heights to Slupsk | 4,439.75 mi (7,145.08 km) |
| Prospect Heights to Sochaczew | 4,639.28 mi (7,466.20 km) |
| Prospect Heights to Sokolka | 4,689.52 mi (7,547.05 km) |
| Prospect Heights to Sokolow Podlaski | 4,696.35 mi (7,558.05 km) |
| Prospect Heights to Solec Kujawski | 4,537.23 mi (7,301.96 km) |
| Prospect Heights to Sopot | 4,489.23 mi (7,224.72 km) |
