| Port Neches to Sierpc | 5,465.48 mi (8,795.84 km) |
| Port Neches to Skarzysko-Kamienna | 5,581.00 mi (8,981.75 km) |
| Port Neches to Skawina | 5,590.01 mi (8,996.25 km) |
| Port Neches to Skierniewice | 5,519.40 mi (8,882.61 km) |
| Port Neches to Skoczow | 5,559.96 mi (8,947.89 km) |
| Port Neches to Skwierzyna | 5,333.11 mi (8,582.81 km) |
| Port Neches to Slawno | 5,306.65 mi (8,540.23 km) |
| Port Neches to Slubice | 5,309.45 mi (8,544.73 km) |
| Port Neches to Slupca | 5,427.33 mi (8,734.44 km) |
| Port Neches to Slupsk | 5,314.37 mi (8,552.65 km) |
| Port Neches to Sochaczew | 5,511.26 mi (8,869.52 km) |
| Port Neches to Sokolka | 5,569.92 mi (8,963.91 km) |
| Port Neches to Sokolow Podlaski | 5,572.03 mi (8,967.32 km) |
| Port Neches to Solec Kujawski | 5,408.93 mi (8,704.83 km) |
| Port Neches to Sopot | 5,365.92 mi (8,635.62 km) |
