| Duncan to Ilawa | 5,296.74 mi (8,524.28 km) |
| Duncan to Imielin | 5,444.11 mi (8,761.45 km) |
| Duncan to Inowroclaw | 5,292.31 mi (8,517.15 km) |
| Duncan to Janow Lubelski | 5,520.29 mi (8,884.05 km) |
| Duncan to Jarocin | 5,304.82 mi (8,537.28 km) |
| Duncan to Jaroslaw | 5,562.09 mi (8,951.32 km) |
| Duncan to Jasien | 5,232.21 mi (8,420.43 km) |
| Duncan to Jaslo | 5,536.07 mi (8,909.44 km) |
| Duncan to Jastrzebie-Zdroj | 5,431.43 mi (8,741.03 km) |
| Duncan to Jawor | 5,302.40 mi (8,533.39 km) |
| Duncan to Jaworzno | 5,442.61 mi (8,759.03 km) |
| Duncan to Jedrzejow | 5,456.49 mi (8,781.37 km) |
| Duncan to Jelcz-Laskowice | 5,340.95 mi (8,595.43 km) |
| Duncan to Jelenia Gora | 5,293.14 mi (8,518.49 km) |
| Duncan to Jozefoslaw | 5,411.79 mi (8,709.44 km) |
