| Thornaby on Tees to Illzach | 598.81 mi (963.69 km) |
| Thornaby on Tees to Ingre | 478.04 mi (769.33 km) |
| Thornaby on Tees to Irigny | 670.61 mi (1,079.24 km) |
| Thornaby on Tees to Isbergues | 314.26 mi (505.75 km) |
| Thornaby on Tees to Issoire | 654.39 mi (1,053.14 km) |
| Thornaby on Tees to Issoudun | 545.05 mi (877.17 km) |
| Thornaby on Tees to Issy-les-Moulineaux | 424.60 mi (683.33 km) |
| Thornaby on Tees to Istres | 813.71 mi (1,309.55 km) |
| Thornaby on Tees to Ivry-sur-Seine | 427.27 mi (687.63 km) |
| Thornaby on Tees to Jarville-la-Malgrange | 518.39 mi (834.26 km) |
| Thornaby on Tees to Jeumont | 372.11 mi (598.86 km) |
| Thornaby on Tees to Joigny | 497.46 mi (800.58 km) |
| Thornaby on Tees to Joinville-le-Pont | 427.95 mi (688.73 km) |
| Thornaby on Tees to Joue-les-Tours | 505.20 mi (813.04 km) |
| Thornaby on Tees to Jouy-le-Moutier | 408.93 mi (658.11 km) |
