| Glenn Dale to Sierpc | 4,375.98 mi (7,042.46 km) |
| Glenn Dale to Skarzysko-Kamienna | 4,484.38 mi (7,216.91 km) |
| Glenn Dale to Skawina | 4,484.92 mi (7,217.79 km) |
| Glenn Dale to Skierniewice | 4,425.71 mi (7,122.49 km) |
| Glenn Dale to Skoczow | 4,451.69 mi (7,164.31 km) |
| Glenn Dale to Skwierzyna | 4,232.90 mi (6,812.20 km) |
| Glenn Dale to Slawno | 4,219.43 mi (6,790.51 km) |
| Glenn Dale to Slubice | 4,205.99 mi (6,768.88 km) |
| Glenn Dale to Slupca | 4,330.38 mi (6,969.08 km) |
| Glenn Dale to Slupsk | 4,228.60 mi (6,805.27 km) |
| Glenn Dale to Sochaczew | 4,419.29 mi (7,112.16 km) |
| Glenn Dale to Sokolka | 4,493.12 mi (7,230.98 km) |
| Glenn Dale to Sokolow Podlaski | 4,485.95 mi (7,219.44 km) |
| Glenn Dale to Solec Kujawski | 4,317.34 mi (6,948.09 km) |
| Glenn Dale to Sopot | 4,283.50 mi (6,893.64 km) |
