| Willow Grove to Sinop | 5,279.54 mi (8,496.61 km) |
| Willow Grove to Siran | 5,516.84 mi (8,878.50 km) |
| Willow Grove to Sirnak | 5,774.02 mi (9,292.39 km) |
| Willow Grove to Sirvan | 5,730.52 mi (9,222.38 km) |
| Willow Grove to Sivas | 5,458.21 mi (8,784.15 km) |
| Willow Grove to Sivasli | 5,224.79 mi (8,408.48 km) |
| Willow Grove to Siverek | 5,643.47 mi (9,082.29 km) |
| Willow Grove to Sivrice | 5,609.08 mi (9,026.94 km) |
| Willow Grove to Sivrihisar | 5,256.87 mi (8,460.12 km) |
| Willow Grove to Sogut | 5,176.59 mi (8,330.92 km) |
| Willow Grove to Sogutlu | 5,149.40 mi (8,287.16 km) |
| Willow Grove to Soke | 5,162.25 mi (8,307.84 km) |
| Willow Grove to Solhan | 5,648.94 mi (9,091.09 km) |
| Willow Grove to Soma | 5,107.77 mi (8,220.17 km) |
| Willow Grove to Sorgun | 5,384.64 mi (8,665.74 km) |
