| Viseu to Siran | 2,444.17 mi (3,933.51 km) |
| Viseu to Sirnak | 2,673.09 mi (4,301.92 km) |
| Viseu to Sirvan | 2,637.90 mi (4,245.29 km) |
| Viseu to Sivas | 2,345.59 mi (3,774.87 km) |
| Viseu to Sivasli | 1,992.86 mi (3,207.20 km) |
| Viseu to Siverek | 2,506.31 mi (4,033.52 km) |
| Viseu to Sivrice | 2,490.15 mi (4,007.50 km) |
| Viseu to Sivrihisar | 2,070.55 mi (3,332.23 km) |
| Viseu to Sogut | 1,990.93 mi (3,204.10 km) |
| Viseu to Sogutlu | 1,992.59 mi (3,206.76 km) |
| Viseu to Soke | 1,889.23 mi (3,040.41 km) |
| Viseu to Solhan | 2,567.49 mi (4,131.97 km) |
| Viseu to Soma | 1,872.26 mi (3,013.11 km) |
| Viseu to Sorgun | 2,251.17 mi (3,622.91 km) |
| Viseu to Suhut | 2,036.65 mi (3,277.67 km) |
