| Tournai to Siran | 1,854.88 mi (2,985.14 km) |
| Tournai to Sirnak | 2,108.65 mi (3,393.54 km) |
| Tournai to Sirvan | 2,067.05 mi (3,326.59 km) |
| Tournai to Sivas | 1,781.47 mi (2,866.99 km) |
| Tournai to Sivasli | 1,529.43 mi (2,461.37 km) |
| Tournai to Siverek | 1,963.79 mi (3,160.42 km) |
| Tournai to Sivrice | 1,933.94 mi (3,112.37 km) |
| Tournai to Sivrihisar | 1,562.24 mi (2,514.18 km) |
| Tournai to Sogut | 1,481.42 mi (2,384.12 km) |
| Tournai to Sogutlu | 1,456.92 mi (2,344.69 km) |
| Tournai to Soke | 1,474.05 mi (2,372.26 km) |
| Tournai to Solhan | 1,987.43 mi (3,198.45 km) |
| Tournai to Soma | 1,413.73 mi (2,275.17 km) |
| Tournai to Sorgun | 1,700.70 mi (2,737.02 km) |
| Tournai to Suhut | 1,562.21 mi (2,514.13 km) |
