| Duncan to Illzach | 5,119.06 mi (8,238.33 km) |
| Duncan to Ingre | 4,898.01 mi (7,882.58 km) |
| Duncan to Irigny | 5,100.54 mi (8,208.53 km) |
| Duncan to Isbergues | 4,827.60 mi (7,769.27 km) |
| Duncan to Issoire | 5,041.41 mi (8,113.36 km) |
| Duncan to Issoudun | 4,939.36 mi (7,949.13 km) |
| Duncan to Issy-les-Moulineaux | 4,883.65 mi (7,859.47 km) |
| Duncan to Istres | 5,189.74 mi (8,352.09 km) |
| Duncan to Ivry-sur-Seine | 4,888.31 mi (7,866.97 km) |
| Duncan to Jarville-la-Malgrange | 5,041.28 mi (8,113.15 km) |
| Duncan to Jeumont | 4,901.33 mi (7,887.93 km) |
| Duncan to Joigny | 4,958.02 mi (7,979.17 km) |
| Duncan to Joinville-le-Pont | 4,891.65 mi (7,872.36 km) |
| Duncan to Joue-les-Tours | 4,871.36 mi (7,839.70 km) |
| Duncan to Jouy-le-Moutier | 4,868.02 mi (7,834.32 km) |
