| Rio Grande City to Sangeorgiu de Mures | 6,280.05 mi (10,106.76 km) |
| Rio Grande City to Sangeorz-Bai | 6,249.97 mi (10,058.35 km) |
| Rio Grande City to Sannicolau Mare | 6,160.98 mi (9,915.14 km) |
| Rio Grande City to Santana | 6,181.49 mi (9,948.15 km) |
| Rio Grande City to Satu Mare | 6,167.97 mi (9,926.39 km) |
| Rio Grande City to Scobinti | 6,327.07 mi (10,182.44 km) |
| Rio Grande City to Scornicesti | 6,373.74 mi (10,257.54 km) |
| Rio Grande City to Sebes | 6,274.63 mi (10,098.05 km) |
| Rio Grande City to Seini | 6,183.83 mi (9,951.91 km) |
| Rio Grande City to Sfantu-Gheorghe | 6,358.72 mi (10,233.36 km) |
| Rio Grande City to Sibiu | 6,303.33 mi (10,144.23 km) |
| Rio Grande City to Sighetu Marmatiei | 6,196.95 mi (9,973.03 km) |
| Rio Grande City to Sighisoara | 6,306.89 mi (10,149.96 km) |
| Rio Grande City to Simeria | 6,259.15 mi (10,073.13 km) |
| Rio Grande City to Sinaia | 6,374.19 mi (10,258.27 km) |
