| Thornton to Illzach | 576.82 mi (928.31 km) |
| Thornton to Ingre | 435.90 mi (701.51 km) |
| Thornton to Irigny | 634.42 mi (1,021.00 km) |
| Thornton to Isbergues | 284.72 mi (458.21 km) |
| Thornton to Issoire | 613.26 mi (986.95 km) |
| Thornton to Issoudun | 501.96 mi (807.83 km) |
| Thornton to Issy-les-Moulineaux | 386.37 mi (621.80 km) |
| Thornton to Istres | 774.67 mi (1,246.70 km) |
| Thornton to Ivry-sur-Seine | 389.46 mi (626.77 km) |
| Thornton to Jarville-la-Malgrange | 496.07 mi (798.35 km) |
| Thornton to Jeumont | 349.50 mi (562.47 km) |
| Thornton to Joigny | 461.59 mi (742.86 km) |
| Thornton to Joinville-le-Pont | 390.62 mi (628.64 km) |
| Thornton to Joue-les-Tours | 458.24 mi (737.46 km) |
| Thornton to Jouy-le-Moutier | 370.18 mi (595.75 km) |
