| Thornton Heath to Ilawa | 838.52 mi (1,349.47 km) |
| Thornton Heath to Imielin | 846.55 mi (1,362.39 km) |
| Thornton Heath to Inowroclaw | 783.46 mi (1,260.85 km) |
| Thornton Heath to Janow Lubelski | 975.49 mi (1,569.90 km) |
| Thornton Heath to Jarocin | 753.49 mi (1,212.62 km) |
| Thornton Heath to Jaroslaw | 997.56 mi (1,605.42 km) |
| Thornton Heath to Jasien | 802.02 mi (1,290.72 km) |
| Thornton Heath to Jaslo | 950.28 mi (1,529.32 km) |
| Thornton Heath to Jastrzebie-Zdroj | 822.27 mi (1,323.31 km) |
| Thornton Heath to Jawor | 704.64 mi (1,134.01 km) |
| Thornton Heath to Jaworzno | 847.72 mi (1,364.28 km) |
| Thornton Heath to Jedrzejow | 885.79 mi (1,425.54 km) |
| Thornton Heath to Jelcz-Laskowice | 753.50 mi (1,212.64 km) |
| Thornton Heath to Jelenia Gora | 686.14 mi (1,104.24 km) |
| Thornton Heath to Jozefoslaw | 902.98 mi (1,453.21 km) |
