| Boone to Sierpc | 4,694.98 mi (7,555.83 km) |
| Boone to Skarzysko-Kamienna | 4,804.89 mi (7,732.73 km) |
| Boone to Skawina | 4,807.07 mi (7,736.24 km) |
| Boone to Skierniewice | 4,745.59 mi (7,637.29 km) |
| Boone to Skoczow | 4,774.42 mi (7,683.68 km) |
| Boone to Skwierzyna | 4,553.94 mi (7,328.86 km) |
| Boone to Slawno | 4,537.81 mi (7,302.90 km) |
| Boone to Slubice | 4,527.65 mi (7,286.55 km) |
| Boone to Slupca | 4,650.85 mi (7,484.82 km) |
| Boone to Slupsk | 4,546.68 mi (7,317.17 km) |
| Boone to Sochaczew | 4,738.82 mi (7,626.40 km) |
| Boone to Sokolka | 4,809.57 mi (7,740.25 km) |
| Boone to Sokolow Podlaski | 4,804.34 mi (7,731.83 km) |
| Boone to Solec Kujawski | 4,636.71 mi (7,462.07 km) |
| Boone to Sopot | 4,600.93 mi (7,404.49 km) |
