| Longford to Imielin | 1,169.91 mi (1,882.79 km) |
| Longford to Inowroclaw | 1,072.98 mi (1,726.79 km) |
| Longford to Janow Lubelski | 1,285.69 mi (2,069.12 km) |
| Longford to Jarocin | 1,057.01 mi (1,701.10 km) |
| Longford to Jaroslaw | 1,314.53 mi (2,115.53 km) |
| Longford to Jasien | 1,064.26 mi (1,712.76 km) |
| Longford to Jaslo | 1,272.56 mi (2,047.98 km) |
| Longford to Jastrzebie-Zdroj | 1,148.97 mi (1,849.09 km) |
| Longford to Jawor | 1,023.65 mi (1,647.40 km) |
| Longford to Jaworzno | 1,170.20 mi (1,883.26 km) |
| Longford to Jedrzejow | 1,201.30 mi (1,933.31 km) |
| Longford to Jelcz-Laskowice | 1,070.36 mi (1,722.58 km) |
| Longford to Jelenia Gora | 1,008.09 mi (1,622.37 km) |
| Longford to Jozefoslaw | 1,198.75 mi (1,929.20 km) |
| Longford to Jozefow | 1,205.69 mi (1,940.37 km) |
