| Clayton to Sestu | 1,123.94 mi (1,808.81 km) |
| Clayton to Settimo Torinese | 734.96 mi (1,182.80 km) |
| Clayton to Seveso | 743.69 mi (1,196.85 km) |
| Clayton to Sezze | 1,090.89 mi (1,755.61 km) |
| Clayton to Siano | 1,178.51 mi (1,896.62 km) |
| Clayton to Siena | 937.22 mi (1,508.31 km) |
| Clayton to Signa | 904.30 mi (1,455.33 km) |
| Clayton to Silea | 841.44 mi (1,354.17 km) |
| Clayton to Silvi Paese | 1,063.51 mi (1,711.56 km) |
| Clayton to Sinalunga | 954.61 mi (1,536.29 km) |
| Clayton to Siniscola | 1,057.64 mi (1,702.11 km) |
| Clayton to Sinnai | 1,126.13 mi (1,812.32 km) |
| Clayton to Siracusa | 1,413.67 mi (2,275.09 km) |
| Clayton to Solaro | 743.71 mi (1,196.88 km) |
| Clayton to Soliera | 846.25 mi (1,361.91 km) |
