| Kocaeli to Sierpc | 965.41 mi (1,553.67 km) |
| Kocaeli to Skarzysko-Kamienna | 834.56 mi (1,343.10 km) |
| Kocaeli to Skawina | 801.90 mi (1,290.53 km) |
| Kocaeli to Skierniewice | 901.62 mi (1,451.01 km) |
| Kocaeli to Skoczow | 824.48 mi (1,326.88 km) |
| Kocaeli to Skwierzyna | 1,061.80 mi (1,708.80 km) |
| Kocaeli to Slawno | 1,120.04 mi (1,802.54 km) |
| Kocaeli to Slubice | 1,078.59 mi (1,735.82 km) |
| Kocaeli to Slupca | 978.84 mi (1,575.29 km) |
| Kocaeli to Slupsk | 1,117.16 mi (1,797.89 km) |
| Kocaeli to Sochaczew | 914.85 mi (1,472.32 km) |
| Kocaeli to Sokolka | 922.97 mi (1,485.38 km) |
| Kocaeli to Sokolow Podlaski | 881.49 mi (1,418.63 km) |
| Kocaeli to Solec Kujawski | 1,011.40 mi (1,627.69 km) |
| Kocaeli to Sopot | 1,080.43 mi (1,738.79 km) |
