| Piqua to Sestu | 4,701.02 mi (7,565.56 km) |
| Piqua to Settimo Torinese | 4,423.25 mi (7,118.53 km) |
| Piqua to Seveso | 4,460.89 mi (7,179.11 km) |
| Piqua to Sezze | 4,784.21 mi (7,699.44 km) |
| Piqua to Siano | 4,880.98 mi (7,855.18 km) |
| Piqua to Siena | 4,639.55 mi (7,466.64 km) |
| Piqua to Signa | 4,611.90 mi (7,422.14 km) |
| Piqua to Silea | 4,588.17 mi (7,383.94 km) |
| Piqua to Silvi Paese | 4,785.27 mi (7,701.16 km) |
| Piqua to Sinalunga | 4,660.19 mi (7,499.86 km) |
| Piqua to Siniscola | 4,677.42 mi (7,527.58 km) |
| Piqua to Sinnai | 4,705.79 mi (7,573.24 km) |
| Piqua to Siracusa | 5,063.22 mi (8,148.46 km) |
| Piqua to Solaro | 4,459.76 mi (7,177.29 km) |
| Piqua to Soliera | 4,567.94 mi (7,351.38 km) |
