| Idanha-a-Nova to Ilawa | 1,566.30 mi (2,520.72 km) |
| Idanha-a-Nova to Imielin | 1,460.86 mi (2,351.02 km) |
| Idanha-a-Nova to Inowroclaw | 1,493.31 mi (2,403.26 km) |
| Idanha-a-Nova to Janow Lubelski | 1,607.31 mi (2,586.72 km) |
| Idanha-a-Nova to Jarocin | 1,439.47 mi (2,316.60 km) |
| Idanha-a-Nova to Jaroslaw | 1,605.86 mi (2,584.39 km) |
| Idanha-a-Nova to Jasien | 1,554.03 mi (2,500.97 km) |
| Idanha-a-Nova to Jaslo | 1,549.09 mi (2,493.02 km) |
| Idanha-a-Nova to Jastrzebie-Zdroj | 1,430.16 mi (2,301.63 km) |
| Idanha-a-Nova to Jawor | 1,361.80 mi (2,191.60 km) |
| Idanha-a-Nova to Jaworzno | 1,464.67 mi (2,357.16 km) |
| Idanha-a-Nova to Jedrzejow | 1,517.12 mi (2,441.56 km) |
| Idanha-a-Nova to Jelcz-Laskowice | 1,406.16 mi (2,263.00 km) |
| Idanha-a-Nova to Jelenia Gora | 1,339.15 mi (2,155.16 km) |
| Idanha-a-Nova to Jozefoslaw | 1,581.65 mi (2,545.41 km) |
