| Leighton Buzzard to Isny im Allgau | 558.56 mi (898.92 km) |
| Leighton Buzzard to Isselburg | 304.01 mi (489.26 km) |
| Leighton Buzzard to Issum | 304.22 mi (489.60 km) |
| Leighton Buzzard to Itzehoe | 445.66 mi (717.22 km) |
| Leighton Buzzard to Jena | 531.46 mi (855.31 km) |
| Leighton Buzzard to Jever | 375.73 mi (604.69 km) |
| Leighton Buzzard to Jork | 446.58 mi (718.70 km) |
| Leighton Buzzard to Juchen | 313.02 mi (503.76 km) |
| Leighton Buzzard to Julich | 310.05 mi (498.97 km) |
| Leighton Buzzard to Juterbog | 583.98 mi (939.83 km) |
| Leighton Buzzard to Kaarst | 316.18 mi (508.84 km) |
| Leighton Buzzard to Kaiserslautern | 406.37 mi (653.99 km) |
| Leighton Buzzard to Kalkar | 297.10 mi (478.13 km) |
| Leighton Buzzard to Kall | 325.81 mi (524.33 km) |
| Leighton Buzzard to Kaltenkirchen | 461.92 mi (743.38 km) |
