| Widnes to Ilawa | 913.06 mi (1,469.42 km) |
| Widnes to Imielin | 960.72 mi (1,546.14 km) |
| Widnes to Inowroclaw | 868.92 mi (1,398.40 km) |
| Widnes to Janow Lubelski | 1,078.34 mi (1,735.43 km) |
| Widnes to Jarocin | 850.19 mi (1,368.25 km) |
| Widnes to Jaroslaw | 1,106.23 mi (1,780.30 km) |
| Widnes to Jasien | 866.93 mi (1,395.18 km) |
| Widnes to Jaslo | 1,063.58 mi (1,711.66 km) |
| Widnes to Jastrzebie-Zdroj | 939.52 mi (1,512.01 km) |
| Widnes to Jawor | 814.66 mi (1,311.07 km) |
| Widnes to Jaworzno | 961.10 mi (1,546.74 km) |
| Widnes to Jedrzejow | 993.02 mi (1,598.11 km) |
| Widnes to Jelcz-Laskowice | 861.69 mi (1,386.75 km) |
| Widnes to Jelenia Gora | 798.83 mi (1,285.59 km) |
| Widnes to Jozefoslaw | 993.87 mi (1,599.48 km) |
