| Seclin to Skarzysko-Kamienna | 779.64 mi (1,254.71 km) |
| Seclin to Skawina | 741.60 mi (1,193.49 km) |
| Seclin to Skierniewice | 744.98 mi (1,198.93 km) |
| Seclin to Skoczow | 697.93 mi (1,123.22 km) |
| Seclin to Skwierzyna | 553.17 mi (890.23 km) |
| Seclin to Slawno | 630.63 mi (1,014.91 km) |
| Seclin to Slubice | 511.54 mi (823.24 km) |
| Seclin to Slupca | 649.38 mi (1,045.08 km) |
| Seclin to Slupsk | 646.52 mi (1,040.47 km) |
| Seclin to Sochaczew | 748.98 mi (1,205.37 km) |
| Seclin to Sokolka | 889.95 mi (1,432.24 km) |
| Seclin to Sokolow Podlaski | 834.46 mi (1,342.93 km) |
| Seclin to Solec Kujawski | 671.17 mi (1,080.14 km) |
| Seclin to Sopot | 705.07 mi (1,134.70 km) |
| Seclin to Sosnowiec | 707.85 mi (1,139.18 km) |
