| Southborough to Sangeorgiu de Mures | 1,139.51 mi (1,833.87 km) |
| Southborough to Sangeorz-Bai | 1,125.85 mi (1,811.89 km) |
| Southborough to Sannicolau Mare | 989.98 mi (1,593.22 km) |
| Southborough to Santana | 1,018.49 mi (1,639.10 km) |
| Southborough to Satu Mare | 1,037.63 mi (1,669.90 km) |
| Southborough to Scobinti | 1,223.02 mi (1,968.26 km) |
| Southborough to Scornicesti | 1,207.26 mi (1,942.90 km) |
| Southborough to Sebes | 1,119.00 mi (1,800.86 km) |
| Southborough to Seini | 1,055.78 mi (1,699.12 km) |
| Southborough to Sfantu-Gheorghe | 1,217.05 mi (1,958.65 km) |
| Southborough to Sibiu | 1,149.18 mi (1,849.42 km) |
| Southborough to Sighetu Marmatiei | 1,077.55 mi (1,734.15 km) |
| Southborough to Sighisoara | 1,163.39 mi (1,872.29 km) |
| Southborough to Simeria | 1,098.62 mi (1,768.06 km) |
| Southborough to Sinaia | 1,223.31 mi (1,968.73 km) |
