| Middle River to Sabadell | 3,981.09 mi (6,406.94 km) |
| Middle River to Sabinanigo | 3,837.76 mi (6,176.28 km) |
| Middle River to Sagunto | 3,926.11 mi (6,318.46 km) |
| Middle River to Salamanca | 3,630.94 mi (5,843.43 km) |
| Middle River to Salobrena | 3,855.14 mi (6,204.25 km) |
| Middle River to Salou | 3,949.84 mi (6,356.66 km) |
| Middle River to Salt | 3,999.51 mi (6,436.59 km) |
| Middle River to Salvatierra de Mino | 3,465.97 mi (5,577.94 km) |
| Middle River to Sama | 3,568.88 mi (5,743.56 km) |
| Middle River to San Adrian de Besos | 3,989.83 mi (6,421.01 km) |
| Middle River to San Agustin de Guadalix | 3,737.03 mi (6,014.17 km) |
| Middle River to San Andres de la Barca | 3,978.09 mi (6,402.11 km) |
| Middle River to San Andres de Llevaneras | 3,997.73 mi (6,433.72 km) |
| Middle River to San Andres del Rabanedo | 3,590.25 mi (5,777.94 km) |
| Middle River to San Bartolome | 3,521.77 mi (5,667.74 km) |
