| Mountain Ash to Illzach | 548.86 mi (883.30 km) |
| Mountain Ash to Ingre | 348.20 mi (560.38 km) |
| Mountain Ash to Irigny | 558.20 mi (898.33 km) |
| Mountain Ash to Isbergues | 263.19 mi (423.57 km) |
| Mountain Ash to Issoire | 520.58 mi (837.78 km) |
| Mountain Ash to Issoudun | 406.60 mi (654.35 km) |
| Mountain Ash to Issy-les-Moulineaux | 318.07 mi (511.88 km) |
| Mountain Ash to Istres | 684.88 mi (1,102.21 km) |
| Mountain Ash to Ivry-sur-Seine | 322.42 mi (518.89 km) |
| Mountain Ash to Jarville-la-Malgrange | 471.96 mi (759.54 km) |
| Mountain Ash to Jeumont | 339.00 mi (545.57 km) |
| Mountain Ash to Joigny | 395.36 mi (636.27 km) |
| Mountain Ash to Joinville-le-Pont | 325.24 mi (523.43 km) |
| Mountain Ash to Joue-les-Tours | 349.70 mi (562.78 km) |
| Mountain Ash to Jouy-le-Moutier | 301.71 mi (485.56 km) |
