| Middle River to Santa Ursula | 3,456.05 mi (5,561.97 km) |
| Middle River to Santander | 3,652.27 mi (5,877.76 km) |
| Middle River to Santany | 4,097.74 mi (6,594.67 km) |
| Middle River to Santiago de Compostela | 3,444.43 mi (5,543.28 km) |
| Middle River to Santiago del Teide | 3,443.27 mi (5,541.41 km) |
| Middle River to Santiponce | 3,712.62 mi (5,974.88 km) |
| Middle River to Santomera | 3,938.60 mi (6,338.56 km) |
| Middle River to Santona | 3,668.96 mi (5,904.62 km) |
| Middle River to Santurce-Antiguo | 3,691.66 mi (5,941.16 km) |
| Middle River to Sarria | 3,500.19 mi (5,633.01 km) |
| Middle River to Sauzal | 3,457.18 mi (5,563.80 km) |
| Middle River to Sedavi | 3,928.40 mi (6,322.15 km) |
| Middle River to Segorbe | 3,910.45 mi (6,293.27 km) |
| Middle River to Segovia | 3,705.40 mi (5,963.27 km) |
| Middle River to Senmanat | 3,980.57 mi (6,406.10 km) |
