| Leighton Buzzard to Imola | 771.91 mi (1,242.26 km) |
| Leighton Buzzard to Impruneta | 791.32 mi (1,273.50 km) |
| Leighton Buzzard to Induno Olona | 600.59 mi (966.55 km) |
| Leighton Buzzard to Inverigo | 619.02 mi (996.22 km) |
| Leighton Buzzard to Inveruno | 618.34 mi (995.12 km) |
| Leighton Buzzard to Inzago | 637.91 mi (1,026.62 km) |
| Leighton Buzzard to Iseo | 650.64 mi (1,047.10 km) |
| Leighton Buzzard to Isernia | 998.95 mi (1,607.65 km) |
| Leighton Buzzard to Isola Capo Rizzuto | 1,235.60 mi (1,988.50 km) |
| Leighton Buzzard to Isola del Liri | 973.16 mi (1,566.16 km) |
| Leighton Buzzard to Isola della Scala | 702.40 mi (1,130.40 km) |
| Leighton Buzzard to Isola Vicentina | 700.34 mi (1,127.08 km) |
| Leighton Buzzard to Ispica | 1,292.02 mi (2,079.30 km) |
| Leighton Buzzard to Istrana | 721.37 mi (1,160.94 km) |
| Leighton Buzzard to Itri | 993.46 mi (1,598.82 km) |
