| Alenquer to Siran | 2,531.53 mi (4,074.11 km) |
| Alenquer to Sirnak | 2,755.77 mi (4,434.98 km) |
| Alenquer to Sirvan | 2,721.63 mi (4,380.04 km) |
| Alenquer to Sivas | 2,430.60 mi (3,911.67 km) |
| Alenquer to Sivasli | 2,069.26 mi (3,330.15 km) |
| Alenquer to Siverek | 2,587.37 mi (4,163.97 km) |
| Alenquer to Sivrice | 2,573.05 mi (4,140.92 km) |
| Alenquer to Sivrihisar | 2,151.41 mi (3,462.35 km) |
| Alenquer to Sogut | 2,072.85 mi (3,335.93 km) |
| Alenquer to Sogutlu | 2,077.56 mi (3,343.50 km) |
| Alenquer to Soke | 1,961.25 mi (3,156.33 km) |
| Alenquer to Solhan | 2,652.85 mi (4,269.35 km) |
| Alenquer to Soma | 1,949.73 mi (3,137.78 km) |
| Alenquer to Sorgun | 2,335.30 mi (3,758.31 km) |
| Alenquer to Suhut | 2,113.83 mi (3,401.87 km) |
