| Leigh-on-Sea to Illzach | 396.13 mi (637.51 km) |
| Leigh-on-Sea to Ingre | 255.64 mi (411.42 km) |
| Leigh-on-Sea to Irigny | 447.85 mi (720.75 km) |
| Leigh-on-Sea to Isbergues | 100.79 mi (162.20 km) |
| Leigh-on-Sea to Issoire | 431.04 mi (693.69 km) |
| Leigh-on-Sea to Issoudun | 323.13 mi (520.02 km) |
| Leigh-on-Sea to Issy-les-Moulineaux | 200.98 mi (323.44 km) |
| Leigh-on-Sea to Istres | 590.11 mi (949.69 km) |
| Leigh-on-Sea to Ivry-sur-Seine | 203.71 mi (327.84 km) |
| Leigh-on-Sea to Jarville-la-Malgrange | 316.00 mi (508.56 km) |
| Leigh-on-Sea to Jeumont | 173.16 mi (278.67 km) |
| Leigh-on-Sea to Joigny | 274.74 mi (442.15 km) |
| Leigh-on-Sea to Joinville-le-Pont | 204.50 mi (329.11 km) |
| Leigh-on-Sea to Joue-les-Tours | 289.58 mi (466.03 km) |
| Leigh-on-Sea to Jouy-le-Moutier | 185.30 mi (298.21 km) |
