| Boppard to Skarzysko-Kamienna | 585.88 mi (942.88 km) |
| Boppard to Skawina | 542.16 mi (872.53 km) |
| Boppard to Skierniewice | 557.20 mi (896.73 km) |
| Boppard to Skoczow | 497.56 mi (800.75 km) |
| Boppard to Skwierzyna | 377.80 mi (608.01 km) |
| Boppard to Slawno | 477.59 mi (768.60 km) |
| Boppard to Slubice | 334.90 mi (538.96 km) |
| Boppard to Slupca | 466.20 mi (750.28 km) |
| Boppard to Slupsk | 493.58 mi (794.34 km) |
| Boppard to Sochaczew | 563.37 mi (906.66 km) |
| Boppard to Sokolka | 712.16 mi (1,146.11 km) |
| Boppard to Sokolow Podlaski | 649.32 mi (1,044.98 km) |
| Boppard to Solec Kujawski | 496.29 mi (798.70 km) |
| Boppard to Sopot | 546.48 mi (879.47 km) |
| Boppard to Sosnowiec | 509.38 mi (819.77 km) |
