| Duncan to Isny im Allgau | 5,224.91 mi (8,408.68 km) |
| Duncan to Isselburg | 4,931.88 mi (7,937.09 km) |
| Duncan to Issum | 4,941.30 mi (7,952.25 km) |
| Duncan to Itzehoe | 4,958.48 mi (7,979.90 km) |
| Duncan to Jena | 5,149.23 mi (8,286.88 km) |
| Duncan to Jever | 4,916.95 mi (7,913.07 km) |
| Duncan to Jork | 4,979.26 mi (8,013.34 km) |
| Duncan to Juchen | 4,960.52 mi (7,983.18 km) |
| Duncan to Julich | 4,961.99 mi (7,985.55 km) |
| Duncan to Juterbog | 5,156.50 mi (8,298.59 km) |
| Duncan to Kaarst | 4,960.36 mi (7,982.93 km) |
| Duncan to Kaiserslautern | 5,070.37 mi (8,159.97 km) |
| Duncan to Kalkar | 4,929.11 mi (7,932.64 km) |
| Duncan to Kall | 4,983.01 mi (8,019.38 km) |
| Duncan to Kaltenkirchen | 4,976.73 mi (8,009.27 km) |
