| Guadarrama to Sangeorgiu de Mures | 1,476.02 mi (2,375.42 km) |
| Guadarrama to Sangeorz-Bai | 1,492.45 mi (2,401.86 km) |
| Guadarrama to Sannicolau Mare | 1,289.41 mi (2,075.10 km) |
| Guadarrama to Santana | 1,334.15 mi (2,147.11 km) |
| Guadarrama to Satu Mare | 1,414.50 mi (2,276.42 km) |
| Guadarrama to Scobinti | 1,597.31 mi (2,570.62 km) |
| Guadarrama to Scornicesti | 1,472.85 mi (2,370.32 km) |
| Guadarrama to Sebes | 1,429.65 mi (2,300.80 km) |
| Guadarrama to Seini | 1,432.07 mi (2,304.69 km) |
| Guadarrama to Sfantu-Gheorghe | 1,535.57 mi (2,471.27 km) |
| Guadarrama to Sibiu | 1,456.68 mi (2,344.30 km) |
| Guadarrama to Sighetu Marmatiei | 1,461.93 mi (2,352.75 km) |
| Guadarrama to Sighisoara | 1,489.41 mi (2,396.97 km) |
| Guadarrama to Simeria | 1,402.17 mi (2,256.58 km) |
| Guadarrama to Sinaia | 1,522.80 mi (2,450.71 km) |
