| Serik to Sierpc | 1,233.49 mi (1,985.12 km) |
| Serik to Skarzysko-Kamienna | 1,101.50 mi (1,772.69 km) |
| Serik to Skawina | 1,062.47 mi (1,709.88 km) |
| Serik to Skierniewice | 1,168.80 mi (1,881.00 km) |
| Serik to Skoczow | 1,080.89 mi (1,739.53 km) |
| Serik to Skwierzyna | 1,320.49 mi (2,125.12 km) |
| Serik to Slawno | 1,385.99 mi (2,230.54 km) |
| Serik to Slubice | 1,334.12 mi (2,147.06 km) |
| Serik to Slupca | 1,241.97 mi (1,998.76 km) |
| Serik to Slupsk | 1,383.90 mi (2,227.17 km) |
| Serik to Sochaczew | 1,182.74 mi (1,903.43 km) |
| Serik to Sokolka | 1,195.92 mi (1,924.65 km) |
| Serik to Sokolow Podlaski | 1,152.78 mi (1,855.22 km) |
| Serik to Solec Kujawski | 1,277.30 mi (2,055.61 km) |
| Serik to Sopot | 1,349.41 mi (2,171.67 km) |
