| Union City to Sierpc | 5,776.22 mi (9,295.93 km) |
| Union City to Skarzysko-Kamienna | 5,908.73 mi (9,509.17 km) |
| Union City to Skawina | 5,954.16 mi (9,582.30 km) |
| Union City to Skierniewice | 5,841.39 mi (9,400.81 km) |
| Union City to Skoczow | 5,942.04 mi (9,562.79 km) |
| Union City to Skwierzyna | 5,702.84 mi (9,177.83 km) |
| Union City to Slawno | 5,625.95 mi (9,054.10 km) |
| Union City to Slubice | 5,695.94 mi (9,166.73 km) |
| Union City to Slupca | 5,772.95 mi (9,290.66 km) |
| Union City to Slupsk | 5,627.15 mi (9,056.02 km) |
| Union City to Sochaczew | 5,827.03 mi (9,377.70 km) |
| Union City to Sokolka | 5,819.87 mi (9,366.18 km) |
| Union City to Sokolow Podlaski | 5,857.45 mi (9,426.66 km) |
| Union City to Solec Kujawski | 5,734.32 mi (9,228.50 km) |
| Union City to Sopot | 5,659.98 mi (9,108.87 km) |
