| Seclin to Santander | 585.41 mi (942.13 km) |
| Seclin to Santany | 773.45 mi (1,244.75 km) |
| Seclin to Santiago de Compostela | 760.92 mi (1,224.58 km) |
| Seclin to Santiago del Teide | 1,854.20 mi (2,984.05 km) |
| Seclin to Santiponce | 1,010.29 mi (1,625.90 km) |
| Seclin to Santomera | 885.64 mi (1,425.30 km) |
| Seclin to Santona | 577.92 mi (930.07 km) |
| Seclin to Santurce-Antiguo | 574.41 mi (924.42 km) |
| Seclin to Sarria | 728.81 mi (1,172.91 km) |
| Seclin to Sauzal | 1,832.05 mi (2,948.40 km) |
| Seclin to Sedavi | 786.08 mi (1,265.07 km) |
| Seclin to Segorbe | 758.42 mi (1,220.55 km) |
| Seclin to Segovia | 746.66 mi (1,201.64 km) |
| Seclin to Senmanat | 619.14 mi (996.42 km) |
| Seclin to Sesena | 791.41 mi (1,273.65 km) |
