| Fort Madison to Solofra | 5,154.75 mi (8,295.76 km) |
| Fort Madison to Somma Lombardo | 4,704.04 mi (7,570.42 km) |
| Fort Madison to Somma Vesuviana | 5,136.63 mi (8,266.60 km) |
| Fort Madison to Sommacampagna | 4,798.94 mi (7,723.15 km) |
| Fort Madison to Sona | 4,796.89 mi (7,719.86 km) |
| Fort Madison to Sondrio | 4,729.17 mi (7,610.87 km) |
| Fort Madison to Sora | 5,066.41 mi (8,153.60 km) |
| Fort Madison to Sorbolo | 4,806.76 mi (7,735.73 km) |
| Fort Madison to Soresina | 4,765.36 mi (7,669.11 km) |
| Fort Madison to Sorisole | 4,738.86 mi (7,626.46 km) |
| Fort Madison to Sorrento | 5,145.13 mi (8,280.29 km) |
| Fort Madison to Sorso | 4,902.45 mi (7,889.74 km) |
| Fort Madison to Sortino | 5,329.31 mi (8,576.70 km) |
| Fort Madison to Soverato Marina | 5,320.82 mi (8,563.04 km) |
| Fort Madison to Sovicille | 4,903.92 mi (7,892.10 km) |
