| Westhoughton to Sinop | 1,893.30 mi (3,046.97 km) |
| Westhoughton to Siran | 2,134.10 mi (3,434.50 km) |
| Westhoughton to Sirnak | 2,390.39 mi (3,846.96 km) |
| Westhoughton to Sirvan | 2,347.75 mi (3,778.35 km) |
| Westhoughton to Sivas | 2,068.36 mi (3,328.70 km) |
| Westhoughton to Sivasli | 1,838.87 mi (2,959.38 km) |
| Westhoughton to Siverek | 2,252.80 mi (3,625.53 km) |
| Westhoughton to Sivrice | 2,220.24 mi (3,573.13 km) |
| Westhoughton to Sivrihisar | 1,864.33 mi (3,000.35 km) |
| Westhoughton to Sogut | 1,784.71 mi (2,872.22 km) |
| Westhoughton to Sogutlu | 1,755.96 mi (2,825.95 km) |
| Westhoughton to Soke | 1,789.70 mi (2,880.24 km) |
| Westhoughton to Solhan | 2,266.93 mi (3,648.28 km) |
| Westhoughton to Soma | 1,725.50 mi (2,776.93 km) |
| Westhoughton to Sorgun | 1,992.14 mi (3,206.03 km) |
