| Ploiesti to Sangeorz-Bai | 179.69 mi (289.19 km) |
| Ploiesti to Sannicolau Mare | 273.16 mi (439.61 km) |
| Ploiesti to Santana | 239.11 mi (384.81 km) |
| Ploiesti to Satu Mare | 247.04 mi (397.57 km) |
| Ploiesti to Scobinti | 174.27 mi (280.47 km) |
| Ploiesti to Scornicesti | 76.66 mi (123.37 km) |
| Ploiesti to Sebes | 138.15 mi (222.33 km) |
| Ploiesti to Seini | 233.74 mi (376.17 km) |
| Ploiesti to Sfantu-Gheorghe | 64.75 mi (104.21 km) |
| Ploiesti to Sibiu | 108.20 mi (174.13 km) |
| Ploiesti to Sighetu Marmatiei | 229.97 mi (370.09 km) |
| Ploiesti to Sighisoara | 106.38 mi (171.20 km) |
| Ploiesti to Simeria | 159.07 mi (255.99 km) |
| Ploiesti to Sinaia | 36.40 mi (58.59 km) |
| Ploiesti to Slatina | 88.79 mi (142.90 km) |
