| Downham Market to Illzach | 452.97 mi (728.98 km) |
| Downham Market to Ingre | 329.44 mi (530.19 km) |
| Downham Market to Irigny | 518.61 mi (834.62 km) |
| Downham Market to Isbergues | 162.82 mi (262.04 km) |
| Downham Market to Issoire | 504.28 mi (811.57 km) |
| Downham Market to Issoudun | 396.98 mi (638.88 km) |
| Downham Market to Issy-les-Moulineaux | 273.54 mi (440.21 km) |
| Downham Market to Istres | 662.32 mi (1,065.91 km) |
| Downham Market to Ivry-sur-Seine | 276.01 mi (444.19 km) |
| Downham Market to Jarville-la-Malgrange | 372.22 mi (599.03 km) |
| Downham Market to Jeumont | 225.60 mi (363.06 km) |
| Downham Market to Joigny | 345.50 mi (556.02 km) |
| Downham Market to Joinville-le-Pont | 276.49 mi (444.97 km) |
| Downham Market to Joue-les-Tours | 362.84 mi (583.94 km) |
| Downham Market to Jouy-le-Moutier | 258.21 mi (415.54 km) |
