| Slough to Sangeorgiu de Mures | 1,178.97 mi (1,897.36 km) |
| Slough to Sangeorz-Bai | 1,164.30 mi (1,873.76 km) |
| Slough to Sannicolau Mare | 1,031.28 mi (1,659.68 km) |
| Slough to Santana | 1,059.20 mi (1,704.61 km) |
| Slough to Satu Mare | 1,076.18 mi (1,731.94 km) |
| Slough to Scobinti | 1,260.68 mi (2,028.87 km) |
| Slough to Scornicesti | 1,248.48 mi (2,009.23 km) |
| Slough to Sebes | 1,159.37 mi (1,865.82 km) |
| Slough to Seini | 1,094.25 mi (1,761.02 km) |
| Slough to Sfantu-Gheorghe | 1,256.74 mi (2,022.52 km) |
| Slough to Sibiu | 1,189.49 mi (1,914.31 km) |
| Slough to Sighetu Marmatiei | 1,115.56 mi (1,795.33 km) |
| Slough to Sighisoara | 1,203.07 mi (1,936.16 km) |
| Slough to Simeria | 1,139.28 mi (1,833.49 km) |
| Slough to Sinaia | 1,263.56 mi (2,033.50 km) |
