| Portalegre to Illzach | 940.04 mi (1,512.85 km) |
| Portalegre to Ingre | 751.89 mi (1,210.05 km) |
| Portalegre to Irigny | 761.31 mi (1,225.21 km) |
| Portalegre to Isbergues | 916.46 mi (1,474.91 km) |
| Portalegre to Issoire | 692.51 mi (1,114.49 km) |
| Portalegre to Issoudun | 708.31 mi (1,139.92 km) |
| Portalegre to Issy-les-Moulineaux | 812.68 mi (1,307.88 km) |
| Portalegre to Istres | 704.31 mi (1,133.47 km) |
| Portalegre to Ivry-sur-Seine | 814.88 mi (1,311.42 km) |
| Portalegre to Jarville-la-Malgrange | 933.39 mi (1,502.14 km) |
| Portalegre to Jeumont | 943.25 mi (1,518.01 km) |
| Portalegre to Joigny | 805.15 mi (1,295.76 km) |
| Portalegre to Joinville-le-Pont | 818.48 mi (1,317.21 km) |
| Portalegre to Joue-les-Tours | 686.97 mi (1,105.57 km) |
| Portalegre to Jouy-le-Moutier | 816.09 mi (1,313.37 km) |
