| Piqua to Sinop | 5,610.36 mi (9,028.99 km) |
| Piqua to Siran | 5,842.06 mi (9,401.88 km) |
| Piqua to Sirnak | 6,098.12 mi (9,813.98 km) |
| Piqua to Sirvan | 6,054.03 mi (9,743.02 km) |
| Piqua to Sivas | 5,792.61 mi (9,322.30 km) |
| Piqua to Sivasli | 5,587.95 mi (8,992.94 km) |
| Piqua to Siverek | 5,978.15 mi (9,620.90 km) |
| Piqua to Sivrice | 5,940.92 mi (9,560.99 km) |
| Piqua to Sivrihisar | 5,610.34 mi (9,028.97 km) |
| Piqua to Sogut | 5,531.78 mi (8,902.55 km) |
| Piqua to Sogutlu | 5,499.87 mi (8,851.19 km) |
| Piqua to Soke | 5,535.09 mi (8,907.86 km) |
| Piqua to Solhan | 5,972.34 mi (9,611.55 km) |
| Piqua to Soma | 5,474.08 mi (8,809.68 km) |
| Piqua to Sorgun | 5,724.88 mi (9,213.31 km) |
