| Leigh-on-Sea to Imola | 711.85 mi (1,145.62 km) |
| Leigh-on-Sea to Impruneta | 732.35 mi (1,178.61 km) |
| Leigh-on-Sea to Induno Olona | 541.44 mi (871.37 km) |
| Leigh-on-Sea to Inverigo | 559.61 mi (900.61 km) |
| Leigh-on-Sea to Inveruno | 559.67 mi (900.70 km) |
| Leigh-on-Sea to Inzago | 578.49 mi (931.00 km) |
| Leigh-on-Sea to Iseo | 590.53 mi (950.37 km) |
| Leigh-on-Sea to Isernia | 939.41 mi (1,511.83 km) |
| Leigh-on-Sea to Isola Capo Rizzuto | 1,175.97 mi (1,892.54 km) |
| Leigh-on-Sea to Isola del Liri | 914.07 mi (1,471.05 km) |
| Leigh-on-Sea to Isola della Scala | 641.97 mi (1,033.15 km) |
| Leigh-on-Sea to Isola Vicentina | 639.31 mi (1,028.87 km) |
| Leigh-on-Sea to Ispica | 1,235.59 mi (1,988.49 km) |
| Leigh-on-Sea to Istrana | 660.02 mi (1,062.20 km) |
| Leigh-on-Sea to Itri | 934.73 mi (1,504.31 km) |
