| Alcanar to Siran | 2,018.02 mi (3,247.70 km) |
| Alcanar to Sirnak | 2,241.42 mi (3,607.21 km) |
| Alcanar to Sirvan | 2,207.32 mi (3,552.33 km) |
| Alcanar to Sivas | 1,916.48 mi (3,084.28 km) |
| Alcanar to Sivasli | 1,555.96 mi (2,504.07 km) |
| Alcanar to Siverek | 2,073.09 mi (3,336.31 km) |
| Alcanar to Sivrice | 2,058.70 mi (3,313.16 km) |
| Alcanar to Sivrihisar | 1,637.10 mi (2,634.67 km) |
| Alcanar to Sogut | 1,558.50 mi (2,508.16 km) |
| Alcanar to Sogutlu | 1,563.52 mi (2,516.24 km) |
| Alcanar to Soke | 1,450.09 mi (2,333.70 km) |
| Alcanar to Solhan | 2,138.76 mi (3,442.01 km) |
| Alcanar to Soma | 1,436.03 mi (2,311.07 km) |
| Alcanar to Sorgun | 1,821.07 mi (2,930.73 km) |
| Alcanar to Suhut | 1,600.27 mi (2,575.39 km) |
