| South Portland to Illzach | 3,595.44 mi (5,786.30 km) |
| South Portland to Ingre | 3,358.98 mi (5,405.75 km) |
| South Portland to Irigny | 3,553.05 mi (5,718.08 km) |
| South Portland to Isbergues | 3,314.13 mi (5,333.58 km) |
| South Portland to Issoire | 3,488.74 mi (5,614.58 km) |
| South Portland to Issoudun | 3,393.31 mi (5,461.01 km) |
| South Portland to Issy-les-Moulineaux | 3,353.31 mi (5,396.63 km) |
| South Portland to Istres | 3,628.77 mi (5,839.94 km) |
| South Portland to Ivry-sur-Seine | 3,358.13 mi (5,404.39 km) |
| South Portland to Jarville-la-Malgrange | 3,521.52 mi (5,667.34 km) |
| South Portland to Jeumont | 3,389.71 mi (5,455.22 km) |
| South Portland to Joigny | 3,423.90 mi (5,510.24 km) |
| South Portland to Joinville-le-Pont | 3,361.87 mi (5,410.41 km) |
| South Portland to Joue-les-Tours | 3,324.85 mi (5,350.83 km) |
| South Portland to Jouy-le-Moutier | 3,338.63 mi (5,373.01 km) |
