| Sinaia to Sierpc | 584.12 mi (940.05 km) |
| Sinaia to Skarzysko-Kamienna | 451.73 mi (726.98 km) |
| Sinaia to Skawina | 416.01 mi (669.50 km) |
| Sinaia to Skierniewice | 519.06 mi (835.34 km) |
| Sinaia to Skoczow | 440.05 mi (708.19 km) |
| Sinaia to Skwierzyna | 676.05 mi (1,088.00 km) |
| Sinaia to Slawno | 736.13 mi (1,184.69 km) |
| Sinaia to Slubice | 693.82 mi (1,116.59 km) |
| Sinaia to Slupca | 593.25 mi (954.74 km) |
| Sinaia to Slupsk | 734.00 mi (1,181.26 km) |
| Sinaia to Sochaczew | 533.31 mi (858.27 km) |
| Sinaia to Sokolka | 563.74 mi (907.25 km) |
| Sinaia to Sokolow Podlaski | 509.55 mi (820.04 km) |
| Sinaia to Solec Kujawski | 627.43 mi (1,009.74 km) |
| Sinaia to Sopot | 700.59 mi (1,127.48 km) |
