| Portimao to Sangeorz-Bai | 1,822.69 mi (2,933.33 km) |
| Portimao to Sannicolau Mare | 1,616.06 mi (2,600.80 km) |
| Portimao to Santana | 1,661.66 mi (2,674.18 km) |
| Portimao to Satu Mare | 1,747.07 mi (2,811.64 km) |
| Portimao to Scobinti | 1,926.81 mi (3,100.89 km) |
| Portimao to Scornicesti | 1,790.06 mi (2,880.83 km) |
| Portimao to Sebes | 1,754.35 mi (2,823.36 km) |
| Portimao to Seini | 1,764.30 mi (2,839.37 km) |
| Portimao to Sfantu-Gheorghe | 1,859.09 mi (2,991.92 km) |
| Portimao to Sibiu | 1,780.36 mi (2,865.22 km) |
| Portimao to Sighetu Marmatiei | 1,794.51 mi (2,887.99 km) |
| Portimao to Sighisoara | 1,814.85 mi (2,920.72 km) |
| Portimao to Simeria | 1,726.57 mi (2,778.65 km) |
| Portimao to Sinaia | 1,843.91 mi (2,967.49 km) |
| Portimao to Slatina | 1,780.09 mi (2,864.78 km) |
