| Saint Helens to Solofra | 1,195.30 mi (1,923.65 km) |
| Saint Helens to Somma Lombardo | 740.71 mi (1,192.06 km) |
| Saint Helens to Somma Vesuviana | 1,180.14 mi (1,899.25 km) |
| Saint Helens to Sommacampagna | 823.88 mi (1,325.91 km) |
| Saint Helens to Sona | 821.64 mi (1,322.31 km) |
| Saint Helens to Sondrio | 752.79 mi (1,211.50 km) |
| Saint Helens to Sora | 1,107.93 mi (1,783.04 km) |
| Saint Helens to Sorbolo | 839.61 mi (1,351.22 km) |
| Saint Helens to Soresina | 797.74 mi (1,283.83 km) |
| Saint Helens to Sorisole | 767.85 mi (1,235.74 km) |
| Saint Helens to Sorrento | 1,191.75 mi (1,917.94 km) |
| Saint Helens to Sorso | 1,020.80 mi (1,642.82 km) |
| Saint Helens to Sortino | 1,410.30 mi (2,269.66 km) |
| Saint Helens to Soverato Marina | 1,368.45 mi (2,202.31 km) |
| Saint Helens to Sovicille | 948.21 mi (1,526.00 km) |
