| Slough to Illzach | 438.18 mi (705.19 km) |
| Slough to Ingre | 270.27 mi (434.95 km) |
| Slough to Irigny | 472.67 mi (760.68 km) |
| Slough to Isbergues | 145.65 mi (234.40 km) |
| Slough to Issoire | 447.77 mi (720.62 km) |
| Slough to Issoudun | 335.87 mi (540.53 km) |
| Slough to Issy-les-Moulineaux | 224.47 mi (361.25 km) |
| Slough to Istres | 610.11 mi (981.88 km) |
| Slough to Ivry-sur-Seine | 228.03 mi (366.98 km) |
| Slough to Jarville-la-Malgrange | 359.21 mi (578.09 km) |
| Slough to Jeumont | 220.84 mi (355.40 km) |
| Slough to Joigny | 301.60 mi (485.37 km) |
| Slough to Joinville-le-Pont | 229.78 mi (369.80 km) |
| Slough to Joue-les-Tours | 292.65 mi (470.98 km) |
| Slough to Jouy-le-Moutier | 207.92 mi (334.61 km) |
