| Wealdstone to Ilawa | 843.71 mi (1,357.82 km) |
| Wealdstone to Imielin | 855.99 mi (1,377.58 km) |
| Wealdstone to Inowroclaw | 789.71 mi (1,270.91 km) |
| Wealdstone to Janow Lubelski | 983.83 mi (1,583.33 km) |
| Wealdstone to Jarocin | 760.90 mi (1,224.54 km) |
| Wealdstone to Jaroslaw | 1,006.55 mi (1,619.88 km) |
| Wealdstone to Jasien | 806.14 mi (1,297.36 km) |
| Wealdstone to Jaslo | 959.72 mi (1,544.52 km) |
| Wealdstone to Jastrzebie-Zdroj | 832.02 mi (1,339.01 km) |
| Wealdstone to Jawor | 713.43 mi (1,148.16 km) |
| Wealdstone to Jaworzno | 857.08 mi (1,379.33 km) |
| Wealdstone to Jedrzejow | 894.51 mi (1,439.58 km) |
| Wealdstone to Jelcz-Laskowice | 762.17 mi (1,226.59 km) |
| Wealdstone to Jelenia Gora | 695.21 mi (1,118.83 km) |
| Wealdstone to Jozefoslaw | 909.97 mi (1,464.46 km) |
