| Potomac Park to Sestu | 6,307.26 mi (10,150.55 km) |
| Potomac Park to Settimo Torinese | 5,956.41 mi (9,585.92 km) |
| Potomac Park to Seveso | 5,972.77 mi (9,612.24 km) |
| Potomac Park to Sezze | 6,319.10 mi (10,169.61 km) |
| Potomac Park to Siano | 6,408.38 mi (10,313.29 km) |
| Potomac Park to Siena | 6,165.59 mi (9,922.56 km) |
| Potomac Park to Signa | 6,133.24 mi (9,870.50 km) |
| Potomac Park to Silea | 6,068.04 mi (9,765.57 km) |
| Potomac Park to Silvi Paese | 6,293.49 mi (10,128.40 km) |
| Potomac Park to Sinalunga | 6,183.64 mi (9,951.61 km) |
| Potomac Park to Siniscola | 6,260.02 mi (10,074.53 km) |
| Potomac Park to Sinnai | 6,310.91 mi (10,156.42 km) |
| Potomac Park to Siracusa | 6,635.63 mi (10,679.01 km) |
| Potomac Park to Solaro | 5,972.61 mi (9,611.98 km) |
| Potomac Park to Soliera | 6,076.33 mi (9,778.90 km) |
