| Viseu to Ifield | 811.00 mi (1,305.17 km) |
| Viseu to Ilford | 843.30 mi (1,357.16 km) |
| Viseu to Ilfracombe | 750.57 mi (1,207.92 km) |
| Viseu to Ilkeston | 904.79 mi (1,456.11 km) |
| Viseu to Ilkley | 958.66 mi (1,542.82 km) |
| Viseu to Immingham | 963.61 mi (1,550.78 km) |
| Viseu to Ince-in-Makerfield | 923.31 mi (1,485.92 km) |
| Viseu to Inverness | 1,173.06 mi (1,887.86 km) |
| Viseu to Inverurie | 1,174.06 mi (1,889.47 km) |
| Viseu to Ipswich | 896.59 mi (1,442.92 km) |
| Viseu to Irlam | 919.31 mi (1,479.49 km) |
| Viseu to Irthlingborough | 876.07 mi (1,409.90 km) |
| Viseu to Irvine | 1,043.73 mi (1,679.72 km) |
| Viseu to Islington | 838.48 mi (1,349.40 km) |
| Viseu to Iver | 828.73 mi (1,333.71 km) |
