| Pottstown to Sestu | 4,310.84 mi (6,937.62 km) |
| Pottstown to Settimo Torinese | 4,054.81 mi (6,525.58 km) |
| Pottstown to Seveso | 4,097.36 mi (6,594.06 km) |
| Pottstown to Sezze | 4,410.39 mi (7,097.84 km) |
| Pottstown to Siano | 4,507.72 mi (7,254.47 km) |
| Pottstown to Siena | 4,269.85 mi (6,871.67 km) |
| Pottstown to Signa | 4,243.76 mi (6,829.68 km) |
| Pottstown to Silea | 4,230.82 mi (6,808.85 km) |
| Pottstown to Silvi Paese | 4,417.96 mi (7,110.02 km) |
| Pottstown to Sinalunga | 4,290.86 mi (6,905.47 km) |
| Pottstown to Siniscola | 4,293.26 mi (6,909.33 km) |
| Pottstown to Sinnai | 4,315.82 mi (6,945.65 km) |
| Pottstown to Siracusa | 4,677.13 mi (7,527.11 km) |
| Pottstown to Solaro | 4,095.99 mi (6,591.86 km) |
| Pottstown to Soliera | 4,203.69 mi (6,765.19 km) |
