| Fort Madison to Sinop | 5,820.02 mi (9,366.41 km) |
| Fort Madison to Siran | 6,045.23 mi (9,728.86 km) |
| Fort Madison to Sirnak | 6,298.56 mi (10,136.55 km) |
| Fort Madison to Sirvan | 6,254.25 mi (10,065.24 km) |
| Fort Madison to Sivas | 6,004.22 mi (9,662.86 km) |
| Fort Madison to Sivasli | 5,826.57 mi (9,376.95 km) |
| Fort Madison to Siverek | 6,188.80 mi (9,959.91 km) |
| Fort Madison to Sivrice | 6,149.29 mi (9,896.32 km) |
| Fort Madison to Sivrihisar | 5,840.10 mi (9,398.73 km) |
| Fort Madison to Sogut | 5,763.56 mi (9,275.55 km) |
| Fort Madison to Sogutlu | 5,727.63 mi (9,217.74 km) |
| Fort Madison to Soke | 5,782.77 mi (9,306.47 km) |
| Fort Madison to Solhan | 6,173.01 mi (9,934.50 km) |
| Fort Madison to Soma | 5,716.18 mi (9,199.31 km) |
| Fort Madison to Sorgun | 5,942.13 mi (9,562.93 km) |
