| Willow Grove to Sestu | 4,290.16 mi (6,904.34 km) |
| Willow Grove to Settimo Torinese | 4,036.07 mi (6,495.42 km) |
| Willow Grove to Seveso | 4,079.02 mi (6,564.54 km) |
| Willow Grove to Sezze | 4,391.11 mi (7,066.80 km) |
| Willow Grove to Siano | 4,488.46 mi (7,223.48 km) |
| Willow Grove to Siena | 4,250.95 mi (6,841.25 km) |
| Willow Grove to Signa | 4,225.00 mi (6,799.48 km) |
| Willow Grove to Silea | 4,212.96 mi (6,780.10 km) |
| Willow Grove to Silvi Paese | 4,399.22 mi (7,079.87 km) |
| Willow Grove to Sinalunga | 4,271.98 mi (6,875.09 km) |
| Willow Grove to Siniscola | 4,273.11 mi (6,876.91 km) |
| Willow Grove to Sinnai | 4,295.17 mi (6,912.40 km) |
| Willow Grove to Siracusa | 4,656.73 mi (7,494.29 km) |
| Willow Grove to Solaro | 4,077.63 mi (6,562.31 km) |
| Willow Grove to Soliera | 4,185.26 mi (6,735.53 km) |
