| Shannon to Sangeorz-Bai | 1,518.74 mi (2,444.18 km) |
| Shannon to Sannicolau Mare | 1,391.64 mi (2,239.62 km) |
| Shannon to Santana | 1,418.76 mi (2,283.28 km) |
| Shannon to Satu Mare | 1,431.06 mi (2,303.06 km) |
| Shannon to Scobinti | 1,612.64 mi (2,595.29 km) |
| Shannon to Scornicesti | 1,608.69 mi (2,588.94 km) |
| Shannon to Sebes | 1,518.28 mi (2,443.44 km) |
| Shannon to Seini | 1,448.86 mi (2,331.72 km) |
| Shannon to Sfantu-Gheorghe | 1,614.18 mi (2,597.78 km) |
| Shannon to Sibiu | 1,548.31 mi (2,491.77 km) |
| Shannon to Sighetu Marmatiei | 1,468.90 mi (2,363.97 km) |
| Shannon to Sighisoara | 1,560.56 mi (2,511.49 km) |
| Shannon to Simeria | 1,498.73 mi (2,411.97 km) |
| Shannon to Sinaia | 1,622.18 mi (2,610.64 km) |
| Shannon to Slatina | 1,606.19 mi (2,584.92 km) |
