| Willoughby to Illzach | 4,131.68 mi (6,649.30 km) |
| Willoughby to Ingre | 3,902.36 mi (6,280.24 km) |
| Willoughby to Irigny | 4,101.10 mi (6,600.09 km) |
| Willoughby to Isbergues | 3,844.61 mi (6,187.30 km) |
| Willoughby to Issoire | 4,039.34 mi (6,500.69 km) |
| Willoughby to Issoudun | 3,940.34 mi (6,341.37 km) |
| Willoughby to Issy-les-Moulineaux | 3,892.29 mi (6,264.04 km) |
| Willoughby to Istres | 4,183.88 mi (6,733.30 km) |
| Willoughby to Ivry-sur-Seine | 3,897.04 mi (6,271.69 km) |
| Willoughby to Jarville-la-Malgrange | 4,055.68 mi (6,526.98 km) |
| Willoughby to Jeumont | 3,919.51 mi (6,307.84 km) |
| Willoughby to Joigny | 3,964.95 mi (6,380.97 km) |
| Willoughby to Joinville-le-Pont | 3,900.60 mi (6,277.41 km) |
| Willoughby to Joue-les-Tours | 3,872.00 mi (6,231.38 km) |
| Willoughby to Jouy-le-Moutier | 3,877.10 mi (6,239.59 km) |
