| Oristano to Siran | 1,607.13 mi (2,586.43 km) |
| Oristano to Sirnak | 1,822.36 mi (2,932.81 km) |
| Oristano to Sirvan | 1,789.78 mi (2,880.37 km) |
| Oristano to Sivas | 1,501.89 mi (2,417.06 km) |
| Oristano to Sivasli | 1,131.04 mi (1,820.23 km) |
| Oristano to Siverek | 1,652.33 mi (2,659.17 km) |
| Oristano to Sivrice | 1,640.39 mi (2,639.96 km) |
| Oristano to Sivrihisar | 1,217.26 mi (1,959.00 km) |
| Oristano to Sogut | 1,140.56 mi (1,835.56 km) |
| Oristano to Sogutlu | 1,150.87 mi (1,852.15 km) |
| Oristano to Soke | 1,021.86 mi (1,644.52 km) |
| Oristano to Solhan | 1,723.90 mi (2,774.34 km) |
| Oristano to Soma | 1,012.50 mi (1,629.46 km) |
| Oristano to Sorgun | 1,405.46 mi (2,261.87 km) |
| Oristano to Suhut | 1,176.05 mi (1,892.68 km) |
