| Sluis to Sangeorz-Bai | 992.53 mi (1,597.32 km) |
| Sluis to Sannicolau Mare | 862.57 mi (1,388.17 km) |
| Sluis to Santana | 889.32 mi (1,431.22 km) |
| Sluis to Satu Mare | 904.43 mi (1,455.54 km) |
| Sluis to Scobinti | 1,088.89 mi (1,752.40 km) |
| Sluis to Scornicesti | 1,079.44 mi (1,737.19 km) |
| Sluis to Sebes | 988.93 mi (1,591.53 km) |
| Sluis to Seini | 922.48 mi (1,484.59 km) |
| Sluis to Sfantu-Gheorghe | 1,085.56 mi (1,747.04 km) |
| Sluis to Sibiu | 1,018.99 mi (1,639.91 km) |
| Sluis to Sighetu Marmatiei | 943.75 mi (1,518.82 km) |
| Sluis to Sighisoara | 1,031.90 mi (1,660.69 km) |
| Sluis to Simeria | 969.28 mi (1,559.91 km) |
| Sluis to Sinaia | 1,092.93 mi (1,758.91 km) |
| Sluis to Slatina | 1,077.12 mi (1,733.45 km) |
