| Portogruaro to Smyrna (Delaware) | 4,287.85 mi (6,900.64 km) |
| Portogruaro to Smyrna (Georgia) | 4,906.85 mi (7,896.81 km) |
| Portogruaro to Smyrna (Tennessee) | 4,890.57 mi (7,870.61 km) |
| Portogruaro to Snellville (Georgia) | 4,885.62 mi (7,862.65 km) |
| Portogruaro to Snoqualmie (Washington) | 5,430.98 mi (8,740.31 km) |
| Portogruaro to Snyder (Texas) | 5,618.06 mi (9,041.40 km) |
| Portogruaro to Socastee (South Carolina) | 4,680.10 mi (7,531.89 km) |
| Portogruaro to Socorro (Texas) | 5,872.51 mi (9,450.89 km) |
| Portogruaro to Soddy-Daisy (Tennessee) | 4,868.62 mi (7,835.28 km) |
| Portogruaro to Solana Beach (California) | 6,164.52 mi (9,920.84 km) |
| Portogruaro to Soledad (California) | 6,080.60 mi (9,785.77 km) |
| Portogruaro to Solon (Ohio) | 4,437.45 mi (7,141.39 km) |
| Portogruaro to Somers Point (New Jersey) | 4,244.50 mi (6,830.87 km) |
| Portogruaro to Somerset (Kentucky) | 4,760.18 mi (7,660.77 km) |
| Portogruaro to Somerset (New Jersey) | 4,190.24 mi (6,743.54 km) |
