| Irthlingborough to Illzach | 472.00 mi (759.60 km) |
| Irthlingborough to Ingre | 322.80 mi (519.50 km) |
| Irthlingborough to Irigny | 521.09 mi (838.62 km) |
| Irthlingborough to Isbergues | 176.81 mi (284.55 km) |
| Irthlingborough to Issoire | 499.99 mi (804.66 km) |
| Irthlingborough to Issoudun | 389.26 mi (626.46 km) |
| Irthlingborough to Issy-les-Moulineaux | 272.89 mi (439.17 km) |
| Irthlingborough to Istres | 661.14 mi (1,064.01 km) |
| Irthlingborough to Ivry-sur-Seine | 276.04 mi (444.24 km) |
| Irthlingborough to Jarville-la-Malgrange | 391.65 mi (630.29 km) |
| Irthlingborough to Jeumont | 247.20 mi (397.82 km) |
| Irthlingborough to Joigny | 348.48 mi (560.83 km) |
| Irthlingborough to Joinville-le-Pont | 277.27 mi (446.23 km) |
| Irthlingborough to Joue-les-Tours | 348.24 mi (560.43 km) |
| Irthlingborough to Jouy-le-Moutier | 256.66 mi (413.06 km) |
