| Bucharest to Sierpc | 653.02 mi (1,050.93 km) |
| Bucharest to Skarzysko-Kamienna | 520.56 mi (837.75 km) |
| Bucharest to Skawina | 483.08 mi (777.44 km) |
| Bucharest to Skierniewice | 587.89 mi (946.12 km) |
| Bucharest to Skoczow | 505.38 mi (813.33 km) |
| Bucharest to Skwierzyna | 742.75 mi (1,195.35 km) |
| Bucharest to Slawno | 804.73 mi (1,295.08 km) |
| Bucharest to Slubice | 759.46 mi (1,222.24 km) |
| Bucharest to Slupca | 661.25 mi (1,064.17 km) |
| Bucharest to Slupsk | 802.72 mi (1,291.86 km) |
| Bucharest to Sochaczew | 602.20 mi (969.15 km) |
| Bucharest to Sokolka | 630.66 mi (1,014.95 km) |
| Bucharest to Sokolow Podlaski | 577.96 mi (930.14 km) |
| Bucharest to Solec Kujawski | 696.04 mi (1,120.17 km) |
| Bucharest to Sopot | 769.50 mi (1,238.40 km) |
