| Thornbury to Ilawa | 933.21 mi (1,501.86 km) |
| Thornbury to Imielin | 949.89 mi (1,528.70 km) |
| Thornbury to Inowroclaw | 880.90 mi (1,417.67 km) |
| Thornbury to Janow Lubelski | 1,077.19 mi (1,733.57 km) |
| Thornbury to Jarocin | 853.50 mi (1,373.57 km) |
| Thornbury to Jaroslaw | 1,100.27 mi (1,770.72 km) |
| Thornbury to Jasien | 893.71 mi (1,438.28 km) |
| Thornbury to Jaslo | 1,053.62 mi (1,695.64 km) |
| Thornbury to Jastrzebie-Zdroj | 925.98 mi (1,490.22 km) |
| Thornbury to Jawor | 807.10 mi (1,298.90 km) |
| Thornbury to Jaworzno | 950.95 mi (1,530.41 km) |
| Thornbury to Jedrzejow | 988.12 mi (1,590.23 km) |
| Thornbury to Jelcz-Laskowice | 855.76 mi (1,377.21 km) |
| Thornbury to Jelenia Gora | 789.00 mi (1,269.77 km) |
| Thornbury to Jozefoslaw | 1,002.07 mi (1,612.67 km) |
