| Longford to Illzach | 776.82 mi (1,250.16 km) |
| Longford to Ingre | 579.92 mi (933.30 km) |
| Longford to Irigny | 790.18 mi (1,271.67 km) |
| Longford to Isbergues | 484.00 mi (778.93 km) |
| Longford to Issoire | 749.34 mi (1,205.94 km) |
| Longford to Issoudun | 635.97 mi (1,023.49 km) |
| Longford to Issy-les-Moulineaux | 550.69 mi (886.24 km) |
| Longford to Istres | 913.15 mi (1,469.57 km) |
| Longford to Ivry-sur-Seine | 554.98 mi (893.16 km) |
| Longford to Jarville-la-Malgrange | 698.12 mi (1,123.51 km) |
| Longford to Jeumont | 558.03 mi (898.06 km) |
| Longford to Joigny | 628.10 mi (1,010.84 km) |
| Longford to Joinville-le-Pont | 557.71 mi (897.55 km) |
| Longford to Joue-les-Tours | 575.51 mi (926.19 km) |
| Longford to Jouy-le-Moutier | 534.26 mi (859.81 km) |
