| Wealdstone to Imola | 747.33 mi (1,202.71 km) |
| Wealdstone to Impruneta | 766.22 mi (1,233.11 km) |
| Wealdstone to Induno Olona | 575.61 mi (926.35 km) |
| Wealdstone to Inverigo | 594.15 mi (956.19 km) |
| Wealdstone to Inveruno | 593.17 mi (954.61 km) |
| Wealdstone to Inzago | 613.04 mi (986.59 km) |
| Wealdstone to Iseo | 626.13 mi (1,007.65 km) |
| Wealdstone to Isernia | 974.07 mi (1,567.62 km) |
| Wealdstone to Isola Capo Rizzuto | 1,210.74 mi (1,948.50 km) |
| Wealdstone to Isola del Liri | 948.10 mi (1,525.81 km) |
| Wealdstone to Isola della Scala | 678.08 mi (1,091.27 km) |
| Wealdstone to Isola Vicentina | 676.51 mi (1,088.74 km) |
| Wealdstone to Ispica | 1,266.21 mi (2,037.76 km) |
| Wealdstone to Istrana | 697.93 mi (1,123.21 km) |
| Wealdstone to Itri | 968.25 mi (1,558.25 km) |
