| Key Largo to Sierpc | 5,246.98 mi (8,444.20 km) |
| Key Largo to Skarzysko-Kamienna | 5,345.01 mi (8,601.95 km) |
| Key Largo to Skawina | 5,333.80 mi (8,583.92 km) |
| Key Largo to Skierniewice | 5,290.91 mi (8,514.90 km) |
| Key Largo to Skoczow | 5,296.25 mi (8,523.48 km) |
| Key Largo to Skwierzyna | 5,092.33 mi (8,195.31 km) |
| Key Largo to Slawno | 5,095.20 mi (8,199.94 km) |
| Key Largo to Slubice | 5,061.29 mi (8,145.36 km) |
| Key Largo to Slupca | 5,192.75 mi (8,356.93 km) |
| Key Largo to Slupsk | 5,105.89 mi (8,217.14 km) |
| Key Largo to Sochaczew | 5,286.72 mi (8,508.15 km) |
| Key Largo to Sokolka | 5,376.58 mi (8,652.77 km) |
| Key Largo to Sokolow Podlaski | 5,359.44 mi (8,625.19 km) |
| Key Largo to Solec Kujawski | 5,186.64 mi (8,347.08 km) |
| Key Largo to Sopot | 5,163.77 mi (8,310.28 km) |
