| Desborough to Ilawa | 848.01 mi (1,364.74 km) |
| Desborough to Imielin | 877.29 mi (1,411.86 km) |
| Desborough to Inowroclaw | 798.36 mi (1,284.83 km) |
| Desborough to Janow Lubelski | 1,000.29 mi (1,609.81 km) |
| Desborough to Jarocin | 774.24 mi (1,246.03 km) |
| Desborough to Jaroslaw | 1,025.59 mi (1,650.52 km) |
| Desborough to Jasien | 806.50 mi (1,297.93 km) |
| Desborough to Jaslo | 980.78 mi (1,578.41 km) |
| Desborough to Jastrzebie-Zdroj | 854.69 mi (1,375.50 km) |
| Desborough to Jawor | 732.56 mi (1,178.94 km) |
| Desborough to Jaworzno | 878.01 mi (1,413.02 km) |
| Desborough to Jedrzejow | 912.75 mi (1,468.93 km) |
| Desborough to Jelcz-Laskowice | 780.57 mi (1,256.21 km) |
| Desborough to Jelenia Gora | 715.50 mi (1,151.49 km) |
| Desborough to Jozefoslaw | 921.18 mi (1,482.49 km) |
