| Guyancourt to Ingre | 59.89 mi (96.39 km) |
| Guyancourt to Irigny | 249.88 mi (402.15 km) |
| Guyancourt to Isbergues | 129.09 mi (207.75 km) |
| Guyancourt to Issoire | 229.70 mi (369.67 km) |
| Guyancourt to Issoudun | 126.03 mi (202.83 km) |
| Guyancourt to Issy-les-Moulineaux | 9.63 mi (15.50 km) |
| Guyancourt to Istres | 388.99 mi (626.03 km) |
| Guyancourt to Ivry-sur-Seine | 13.92 mi (22.40 km) |
| Guyancourt to Jarville-la-Malgrange | 188.47 mi (303.31 km) |
| Guyancourt to Jeumont | 139.05 mi (223.79 km) |
| Guyancourt to Joigny | 81.62 mi (131.35 km) |
| Guyancourt to Joinville-le-Pont | 18.48 mi (29.74 km) |
| Guyancourt to Joue-les-Tours | 117.78 mi (189.55 km) |
| Guyancourt to Jouy-le-Moutier | 16.62 mi (26.74 km) |
| Guyancourt to Juvignac | 365.92 mi (588.89 km) |
