| West Mifflin to Sinop | 5,446.37 mi (8,765.09 km) |
| West Mifflin to Siran | 5,680.86 mi (9,142.46 km) |
| West Mifflin to Sirnak | 5,937.70 mi (9,555.80 km) |
| West Mifflin to Sirvan | 5,893.83 mi (9,485.21 km) |
| West Mifflin to Sivas | 5,627.17 mi (9,056.06 km) |
| West Mifflin to Sivasli | 5,409.28 mi (8,705.40 km) |
| West Mifflin to Siverek | 5,812.76 mi (9,354.74 km) |
| West Mifflin to Sivrice | 5,776.80 mi (9,296.85 km) |
| West Mifflin to Sivrihisar | 5,436.07 mi (8,748.51 km) |
| West Mifflin to Sogut | 5,356.66 mi (8,620.72 km) |
| West Mifflin to Sogutlu | 5,326.86 mi (8,572.75 km) |
| West Mifflin to Soke | 5,352.02 mi (8,613.24 km) |
| West Mifflin to Solhan | 5,812.11 mi (9,353.68 km) |
| West Mifflin to Soma | 5,293.90 mi (8,519.71 km) |
| West Mifflin to Sorgun | 5,556.72 mi (8,942.67 km) |
