| Idanha-a-Nova to Isny im Allgau | 1,011.66 mi (1,628.12 km) |
| Idanha-a-Nova to Isselburg | 1,050.99 mi (1,691.40 km) |
| Idanha-a-Nova to Issum | 1,035.12 mi (1,665.86 km) |
| Idanha-a-Nova to Itzehoe | 1,243.13 mi (2,000.63 km) |
| Idanha-a-Nova to Jena | 1,182.10 mi (1,902.41 km) |
| Idanha-a-Nova to Jever | 1,179.67 mi (1,898.49 km) |
| Idanha-a-Nova to Jork | 1,229.37 mi (1,978.48 km) |
| Idanha-a-Nova to Juchen | 1,016.17 mi (1,635.37 km) |
| Idanha-a-Nova to Julich | 1,003.09 mi (1,614.32 km) |
| Idanha-a-Nova to Juterbog | 1,275.80 mi (2,053.20 km) |
| Idanha-a-Nova to Kaarst | 1,025.31 mi (1,650.08 km) |
| Idanha-a-Nova to Kaiserslautern | 984.95 mi (1,585.12 km) |
| Idanha-a-Nova to Kalkar | 1,041.14 mi (1,675.55 km) |
| Idanha-a-Nova to Kall | 991.55 mi (1,595.74 km) |
| Idanha-a-Nova to Kaltenkirchen | 1,252.11 mi (2,015.08 km) |
