| Portogruaro to Ifield | 700.81 mi (1,127.84 km) |
| Portogruaro to Ilford | 703.77 mi (1,132.62 km) |
| Portogruaro to Ilfracombe | 859.29 mi (1,382.89 km) |
| Portogruaro to Ilkeston | 804.67 mi (1,294.99 km) |
| Portogruaro to Ilkley | 858.81 mi (1,382.12 km) |
| Portogruaro to Immingham | 793.31 mi (1,276.71 km) |
| Portogruaro to Ince-in-Makerfield | 870.74 mi (1,401.31 km) |
| Portogruaro to Inverness | 1,083.93 mi (1,744.42 km) |
| Portogruaro to Inverurie | 1,024.09 mi (1,648.11 km) |
| Portogruaro to Ipswich | 683.51 mi (1,100.00 km) |
| Portogruaro to Irlam | 861.09 mi (1,385.79 km) |
| Portogruaro to Irthlingborough | 756.31 mi (1,217.17 km) |
| Portogruaro to Irvine | 1,018.54 mi (1,639.19 km) |
| Portogruaro to Islington | 710.38 mi (1,143.25 km) |
| Portogruaro to Iver | 724.91 mi (1,166.62 km) |
