| Portimao to Ilawa | 1,755.87 mi (2,825.80 km) |
| Portimao to Imielin | 1,638.21 mi (2,636.45 km) |
| Portimao to Inowroclaw | 1,681.69 mi (2,706.41 km) |
| Portimao to Janow Lubelski | 1,784.11 mi (2,871.25 km) |
| Portimao to Jarocin | 1,625.90 mi (2,616.64 km) |
| Portimao to Jaroslaw | 1,779.48 mi (2,863.79 km) |
| Portimao to Jasien | 1,746.55 mi (2,810.79 km) |
| Portimao to Jaslo | 1,722.53 mi (2,772.14 km) |
| Portimao to Jastrzebie-Zdroj | 1,607.39 mi (2,586.85 km) |
| Portimao to Jawor | 1,546.40 mi (2,488.69 km) |
| Portimao to Jaworzno | 1,642.28 mi (2,642.99 km) |
| Portimao to Jedrzejow | 1,695.50 mi (2,728.65 km) |
| Portimao to Jelcz-Laskowice | 1,589.34 mi (2,557.80 km) |
| Portimao to Jelenia Gora | 1,523.77 mi (2,452.27 km) |
| Portimao to Jozefoslaw | 1,764.99 mi (2,840.48 km) |
