| Gloucester to Solofra | 1,110.93 mi (1,787.87 km) |
| Gloucester to Somma Lombardo | 655.08 mi (1,054.26 km) |
| Gloucester to Somma Vesuviana | 1,094.80 mi (1,761.90 km) |
| Gloucester to Sommacampagna | 744.51 mi (1,198.17 km) |
| Gloucester to Sona | 742.38 mi (1,194.74 km) |
| Gloucester to Sondrio | 674.01 mi (1,084.71 km) |
| Gloucester to Sora | 1,022.83 mi (1,646.09 km) |
| Gloucester to Sorbolo | 756.27 mi (1,217.10 km) |
| Gloucester to Soresina | 714.37 mi (1,149.67 km) |
| Gloucester to Sorisole | 685.98 mi (1,103.98 km) |
| Gloucester to Sorrento | 1,105.58 mi (1,779.26 km) |
| Gloucester to Sorso | 920.42 mi (1,481.27 km) |
| Gloucester to Sortino | 1,318.18 mi (2,121.41 km) |
| Gloucester to Soverato Marina | 1,282.86 mi (2,064.56 km) |
| Gloucester to Sovicille | 861.29 mi (1,386.12 km) |
