| Walton upon Thames to Imola | 741.39 mi (1,193.15 km) |
| Walton upon Thames to Impruneta | 759.41 mi (1,222.16 km) |
| Walton upon Thames to Induno Olona | 569.06 mi (915.81 km) |
| Walton upon Thames to Inverigo | 587.78 mi (945.94 km) |
| Walton upon Thames to Inveruno | 586.28 mi (943.52 km) |
| Walton upon Thames to Inzago | 606.66 mi (976.33 km) |
| Walton upon Thames to Iseo | 620.31 mi (998.30 km) |
| Walton upon Thames to Isernia | 967.60 mi (1,557.20 km) |
| Walton upon Thames to Isola Capo Rizzuto | 1,204.27 mi (1,938.09 km) |
| Walton upon Thames to Isola del Liri | 941.30 mi (1,514.88 km) |
| Walton upon Thames to Isola della Scala | 672.54 mi (1,082.35 km) |
| Walton upon Thames to Isola Vicentina | 671.65 mi (1,080.92 km) |
| Walton upon Thames to Ispica | 1,257.80 mi (2,024.23 km) |
| Walton upon Thames to Istrana | 693.54 mi (1,116.15 km) |
| Walton upon Thames to Itri | 961.19 mi (1,546.89 km) |
