| Rio Grande City to Sesena | 5,319.84 mi (8,561.45 km) |
| Rio Grande City to Sestao | 5,264.07 mi (8,471.71 km) |
| Rio Grande City to Sevilla | 5,284.76 mi (8,505.00 km) |
| Rio Grande City to Sevilla La Nueva | 5,297.12 mi (8,524.89 km) |
| Rio Grande City to Silla | 5,499.96 mi (8,851.32 km) |
| Rio Grande City to Silleda | 5,034.70 mi (8,102.57 km) |
| Rio Grande City to Sitges | 5,547.55 mi (8,927.92 km) |
| Rio Grande City to Socuellamos | 5,386.52 mi (8,668.77 km) |
| Rio Grande City to Soller | 5,635.60 mi (9,069.63 km) |
| Rio Grande City to Solsona | 5,510.82 mi (8,868.80 km) |
| Rio Grande City to Son Servera | 5,671.36 mi (9,127.18 km) |
| Rio Grande City to Sonseca | 5,318.80 mi (8,559.77 km) |
| Rio Grande City to Sopelana | 5,263.35 mi (8,470.55 km) |
| Rio Grande City to Soria | 5,332.12 mi (8,581.22 km) |
| Rio Grande City to Suances | 5,212.49 mi (8,388.70 km) |
