| Thornbury to Illzach | 513.78 mi (826.85 km) |
| Thornbury to Ingre | 320.24 mi (515.38 km) |
| Thornbury to Irigny | 529.32 mi (851.85 km) |
| Thornbury to Isbergues | 226.50 mi (364.52 km) |
| Thornbury to Issoire | 494.90 mi (796.47 km) |
| Thornbury to Issoudun | 380.89 mi (612.98 km) |
| Thornbury to Issy-les-Moulineaux | 286.21 mi (460.62 km) |
| Thornbury to Istres | 659.15 mi (1,060.80 km) |
| Thornbury to Ivry-sur-Seine | 290.42 mi (467.39 km) |
| Thornbury to Jarville-la-Malgrange | 436.36 mi (702.25 km) |
| Thornbury to Jeumont | 302.27 mi (486.45 km) |
| Thornbury to Joigny | 363.89 mi (585.62 km) |
| Thornbury to Joinville-le-Pont | 293.02 mi (471.57 km) |
| Thornbury to Joue-les-Tours | 327.07 mi (526.37 km) |
| Thornbury to Jouy-le-Moutier | 269.69 mi (434.03 km) |
