| Portogruaro to Indianola (Iowa) | 4,904.43 mi (7,892.92 km) |
| Portogruaro to Indio (California) | 6,089.66 mi (9,800.37 km) |
| Portogruaro to Inglewood (California) | 6,141.27 mi (9,883.42 km) |
| Portogruaro to Inkster (Michigan) | 4,471.70 mi (7,196.51 km) |
| Portogruaro to Inver Grove Heights (Minnesota) | 4,718.90 mi (7,594.33 km) |
| Portogruaro to Inwood (New York) | 4,153.99 mi (6,685.20 km) |
| Portogruaro to Iona (Florida) | 5,145.03 mi (8,280.13 km) |
| Portogruaro to Ionia (Michigan) | 4,509.44 mi (7,257.25 km) |
| Portogruaro to Iowa City (Iowa) | 4,815.08 mi (7,749.13 km) |
| Portogruaro to Irmo (South Carolina) | 4,755.16 mi (7,652.70 km) |
| Portogruaro to Irondale (Alabama) | 5,011.51 mi (8,065.25 km) |
| Portogruaro to Ironton (Ohio) | 4,614.82 mi (7,426.83 km) |
| Portogruaro to Irvine (California) | 6,140.40 mi (9,882.02 km) |
| Portogruaro to Irving (Texas) | 5,460.06 mi (8,787.11 km) |
| Portogruaro to Isabela (Puerto Rico) | 4,828.66 mi (7,770.97 km) |
