| Niagara Falls to Illzach | 3,973.88 mi (6,395.34 km) |
| Niagara Falls to Ingre | 3,744.75 mi (6,026.60 km) |
| Niagara Falls to Irigny | 3,943.71 mi (6,346.78 km) |
| Niagara Falls to Isbergues | 3,686.78 mi (5,933.29 km) |
| Niagara Falls to Issoire | 3,882.11 mi (6,247.66 km) |
| Niagara Falls to Issoudun | 3,782.91 mi (6,088.00 km) |
| Niagara Falls to Issy-les-Moulineaux | 3,734.55 mi (6,010.17 km) |
| Niagara Falls to Istres | 4,027.02 mi (6,480.86 km) |
| Niagara Falls to Ivry-sur-Seine | 3,739.30 mi (6,017.82 km) |
| Niagara Falls to Jarville-la-Malgrange | 3,897.85 mi (6,272.99 km) |
| Niagara Falls to Jeumont | 3,761.68 mi (6,053.83 km) |
| Niagara Falls to Joigny | 3,807.26 mi (6,127.18 km) |
| Niagara Falls to Joinville-le-Pont | 3,742.85 mi (6,023.53 km) |
| Niagara Falls to Joue-les-Tours | 3,714.57 mi (5,978.03 km) |
| Niagara Falls to Jouy-le-Moutier | 3,719.35 mi (5,985.71 km) |
