| Fermo to Siran | 1,322.14 mi (2,127.77 km) |
| Fermo to Sirnak | 1,554.68 mi (2,502.02 km) |
| Fermo to Sirvan | 1,518.33 mi (2,443.52 km) |
| Fermo to Sivas | 1,225.21 mi (1,971.78 km) |
| Fermo to Sivasli | 893.46 mi (1,437.89 km) |
| Fermo to Siverek | 1,390.77 mi (2,238.22 km) |
| Fermo to Sivrice | 1,371.87 mi (2,207.81 km) |
| Fermo to Sivrihisar | 957.80 mi (1,541.43 km) |
| Fermo to Sogut | 876.54 mi (1,410.65 km) |
| Fermo to Sogutlu | 873.05 mi (1,405.04 km) |
| Fermo to Soke | 809.82 mi (1,303.28 km) |
| Fermo to Solhan | 1,446.50 mi (2,327.92 km) |
| Fermo to Soma | 771.75 mi (1,242.01 km) |
| Fermo to Sorgun | 1,131.93 mi (1,821.67 km) |
| Fermo to Suhut | 934.00 mi (1,503.13 km) |
