| Prudhoe to Solofra | 1,238.83 mi (1,993.70 km) |
| Prudhoe to Somma Lombardo | 790.30 mi (1,271.86 km) |
| Prudhoe to Somma Vesuviana | 1,225.04 mi (1,971.52 km) |
| Prudhoe to Sommacampagna | 864.54 mi (1,391.35 km) |
| Prudhoe to Sona | 862.20 mi (1,387.58 km) |
| Prudhoe to Sondrio | 793.80 mi (1,277.49 km) |
| Prudhoe to Sora | 1,153.01 mi (1,855.59 km) |
| Prudhoe to Sorbolo | 884.96 mi (1,424.20 km) |
| Prudhoe to Soresina | 843.67 mi (1,357.75 km) |
| Prudhoe to Sorisole | 812.37 mi (1,307.38 km) |
| Prudhoe to Sorrento | 1,237.69 mi (1,991.87 km) |
| Prudhoe to Sorso | 1,088.61 mi (1,751.94 km) |
| Prudhoe to Sortino | 1,463.48 mi (2,355.24 km) |
| Prudhoe to Soverato Marina | 1,412.65 mi (2,273.45 km) |
| Prudhoe to Sovicille | 997.00 mi (1,604.51 km) |
