| Laredo to Santander | 20.10 mi (32.34 km) |
| Laredo to Santany | 439.74 mi (707.69 km) |
| Laredo to Santiago de Compostela | 261.43 mi (420.73 km) |
| Laredo to Santiago del Teide | 1,282.72 mi (2,064.33 km) |
| Laredo to Santiponce | 435.65 mi (701.11 km) |
| Laredo to Santomera | 389.89 mi (627.47 km) |
| Laredo to Santona | 3.03 mi (4.87 km) |
| Laredo to Santurce-Antiguo | 19.88 mi (32.00 km) |
| Laredo to Sarria | 206.77 mi (332.76 km) |
| Laredo to Sauzal | 1,259.78 mi (2,027.42 km) |
| Laredo to Sedavi | 316.90 mi (510.01 km) |
| Laredo to Segorbe | 288.63 mi (464.50 km) |
| Laredo to Segovia | 174.22 mi (280.38 km) |
| Laredo to Senmanat | 308.70 mi (496.81 km) |
| Laredo to Sesena | 229.24 mi (368.92 km) |
