| Portogruaro to Somma Lombardo | 199.43 mi (320.96 km) |
| Portogruaro to Somma Vesuviana | 348.72 mi (561.22 km) |
| Portogruaro to Sommacampagna | 99.48 mi (160.09 km) |
| Portogruaro to Sona | 99.65 mi (160.36 km) |
| Portogruaro to Sondrio | 144.76 mi (232.97 km) |
| Portogruaro to Sora | 283.68 mi (456.54 km) |
| Portogruaro to Sorbolo | 132.72 mi (213.59 km) |
| Portogruaro to Soresina | 148.07 mi (238.30 km) |
| Portogruaro to Sorisole | 153.16 mi (246.49 km) |
| Portogruaro to Sorrento | 364.54 mi (586.67 km) |
| Portogruaro to Sorso | 405.38 mi (652.40 km) |
| Portogruaro to Sortino | 606.08 mi (975.39 km) |
| Portogruaro to Soverato Marina | 525.96 mi (846.46 km) |
| Portogruaro to Sovicille | 189.85 mi (305.53 km) |
| Portogruaro to Spello | 193.24 mi (310.99 km) |
