| Round Rock to Sabadell | 5,309.90 mi (8,545.46 km) |
| Round Rock to Sabinanigo | 5,166.44 mi (8,314.59 km) |
| Round Rock to Sagunto | 5,262.95 mi (8,469.91 km) |
| Round Rock to Salamanca | 4,969.35 mi (7,997.39 km) |
| Round Rock to Salobrena | 5,198.40 mi (8,366.01 km) |
| Round Rock to Salou | 5,281.40 mi (8,499.60 km) |
| Round Rock to Salt | 5,325.88 mi (8,571.18 km) |
| Round Rock to Salvatierra de Mino | 4,803.90 mi (7,731.12 km) |
| Round Rock to Sama | 4,900.93 mi (7,887.29 km) |
| Round Rock to San Adrian de Besos | 5,318.89 mi (8,559.93 km) |
| Round Rock to San Agustin de Guadalix | 5,074.48 mi (8,166.59 km) |
| Round Rock to San Andres de la Barca | 5,307.41 mi (8,541.45 km) |
| Round Rock to San Andres de Llevaneras | 5,325.95 mi (8,571.29 km) |
| Round Rock to San Andres del Rabanedo | 4,924.35 mi (7,924.98 km) |
| Round Rock to San Bartolome | 4,834.09 mi (7,779.72 km) |
