| Gloucester to Sangeorgiu de Mures | 1,252.31 mi (2,015.39 km) |
| Gloucester to Sangeorz-Bai | 1,236.81 mi (1,990.45 km) |
| Gloucester to Sannicolau Mare | 1,105.88 mi (1,779.75 km) |
| Gloucester to Santana | 1,133.46 mi (1,824.12 km) |
| Gloucester to Satu Mare | 1,148.80 mi (1,848.81 km) |
| Gloucester to Scobinti | 1,332.45 mi (2,144.37 km) |
| Gloucester to Scornicesti | 1,323.02 mi (2,129.20 km) |
| Gloucester to Sebes | 1,233.38 mi (1,984.94 km) |
| Gloucester to Seini | 1,166.79 mi (1,877.77 km) |
| Gloucester to Sfantu-Gheorghe | 1,330.24 mi (2,140.82 km) |
| Gloucester to Sibiu | 1,263.48 mi (2,033.37 km) |
| Gloucester to Sighetu Marmatiei | 1,187.71 mi (1,911.43 km) |
| Gloucester to Sighisoara | 1,276.59 mi (2,054.47 km) |
| Gloucester to Simeria | 1,213.50 mi (1,952.94 km) |
| Gloucester to Sinaia | 1,337.48 mi (2,152.46 km) |
