| Leiria to Illzach | 975.27 mi (1,569.55 km) |
| Leiria to Ingre | 772.59 mi (1,243.36 km) |
| Leiria to Irigny | 802.01 mi (1,290.72 km) |
| Leiria to Isbergues | 927.77 mi (1,493.10 km) |
| Leiria to Issoire | 730.38 mi (1,175.44 km) |
| Leiria to Issoudun | 734.57 mi (1,182.18 km) |
| Leiria to Issy-les-Moulineaux | 830.65 mi (1,336.80 km) |
| Leiria to Istres | 757.02 mi (1,218.31 km) |
| Leiria to Ivry-sur-Seine | 833.25 mi (1,340.99 km) |
| Leiria to Jarville-la-Malgrange | 962.44 mi (1,548.90 km) |
| Leiria to Jeumont | 960.43 mi (1,545.67 km) |
| Leiria to Joigny | 830.43 mi (1,336.45 km) |
| Leiria to Joinville-le-Pont | 837.10 mi (1,347.18 km) |
| Leiria to Joue-les-Tours | 706.33 mi (1,136.73 km) |
| Leiria to Jouy-le-Moutier | 832.50 mi (1,339.78 km) |
