| Thornton to Ilawa | 872.92 mi (1,404.83 km) |
| Thornton to Imielin | 927.93 mi (1,493.36 km) |
| Thornton to Inowroclaw | 830.65 mi (1,336.80 km) |
| Thornton to Janow Lubelski | 1,042.71 mi (1,678.08 km) |
| Thornton to Jarocin | 814.03 mi (1,310.06 km) |
| Thornton to Jaroslaw | 1,071.77 mi (1,724.84 km) |
| Thornton to Jasien | 825.59 mi (1,328.66 km) |
| Thornton to Jaslo | 1,030.28 mi (1,658.07 km) |
| Thornton to Jastrzebie-Zdroj | 907.55 mi (1,460.56 km) |
| Thornton to Jawor | 781.46 mi (1,257.64 km) |
| Thornton to Jaworzno | 928.11 mi (1,493.65 km) |
| Thornton to Jedrzejow | 958.54 mi (1,542.63 km) |
| Thornton to Jelcz-Laskowice | 827.87 mi (1,332.32 km) |
| Thornton to Jelenia Gora | 766.32 mi (1,233.27 km) |
| Thornton to Jozefoslaw | 956.16 mi (1,538.79 km) |
