| Round Rock to Santa Ursula | 4,768.83 mi (7,674.69 km) |
| Round Rock to Santander | 4,981.75 mi (8,017.36 km) |
| Round Rock to Santany | 5,431.89 mi (8,741.78 km) |
| Round Rock to Santiago de Compostela | 4,780.35 mi (7,693.23 km) |
| Round Rock to Santiago del Teide | 4,754.61 mi (7,651.80 km) |
| Round Rock to Santiponce | 5,056.05 mi (8,136.92 km) |
| Round Rock to Santomera | 5,279.21 mi (8,496.06 km) |
| Round Rock to Santona | 4,998.12 mi (8,043.69 km) |
| Round Rock to Santurce-Antiguo | 5,020.72 mi (8,080.07 km) |
| Round Rock to Sarria | 4,835.44 mi (7,781.89 km) |
| Round Rock to Sauzal | 4,770.38 mi (7,677.18 km) |
| Round Rock to Sedavi | 5,265.91 mi (8,474.67 km) |
| Round Rock to Segorbe | 5,247.09 mi (8,444.38 km) |
| Round Rock to Segovia | 5,042.64 mi (8,115.34 km) |
| Round Rock to Senmanat | 5,309.14 mi (8,544.23 km) |
