| Petite-Synthe to Sangeorz-Bai | 1,034.80 mi (1,665.35 km) |
| Petite-Synthe to Sannicolau Mare | 899.81 mi (1,448.10 km) |
| Petite-Synthe to Santana | 927.88 mi (1,493.28 km) |
| Petite-Synthe to Satu Mare | 946.56 mi (1,523.35 km) |
| Petite-Synthe to Scobinti | 1,132.10 mi (1,821.94 km) |
| Petite-Synthe to Scornicesti | 1,117.02 mi (1,797.67 km) |
| Petite-Synthe to Sebes | 1,028.22 mi (1,654.76 km) |
| Petite-Synthe to Seini | 964.73 mi (1,552.58 km) |
| Petite-Synthe to Sfantu-Gheorghe | 1,126.05 mi (1,812.20 km) |
| Petite-Synthe to Sibiu | 1,058.37 mi (1,703.29 km) |
| Petite-Synthe to Sighetu Marmatiei | 986.56 mi (1,587.71 km) |
| Petite-Synthe to Sighisoara | 1,072.39 mi (1,725.84 km) |
| Petite-Synthe to Simeria | 1,007.99 mi (1,622.20 km) |
| Petite-Synthe to Sinaia | 1,132.48 mi (1,822.55 km) |
| Petite-Synthe to Slatina | 1,114.32 mi (1,793.32 km) |
