| Caldas da Rainha to Siran | 2,530.26 mi (4,072.06 km) |
| Caldas da Rainha to Sirnak | 2,755.79 mi (4,435.02 km) |
| Caldas da Rainha to Sirvan | 2,721.37 mi (4,379.62 km) |
| Caldas da Rainha to Sivas | 2,429.95 mi (3,910.63 km) |
| Caldas da Rainha to Sivasli | 2,070.77 mi (3,332.58 km) |
| Caldas da Rainha to Siverek | 2,587.80 mi (4,164.65 km) |
| Caldas da Rainha to Sivrice | 2,572.99 mi (4,140.82 km) |
| Caldas da Rainha to Sivrihisar | 2,151.80 mi (3,462.99 km) |
| Caldas da Rainha to Sogut | 2,072.95 mi (3,336.10 km) |
| Caldas da Rainha to Sogutlu | 2,076.85 mi (3,342.37 km) |
| Caldas da Rainha to Soke | 1,963.81 mi (3,160.44 km) |
| Caldas da Rainha to Solhan | 2,652.14 mi (4,268.21 km) |
| Caldas da Rainha to Soma | 1,950.94 mi (3,139.73 km) |
| Caldas da Rainha to Sorgun | 2,334.88 mi (3,757.62 km) |
| Caldas da Rainha to Suhut | 2,115.15 mi (3,404.01 km) |
