| Duncan to Yuncos | 4,926.73 mi (7,928.81 km) |
| Duncan to Zafra | 4,864.52 mi (7,828.69 km) |
| Duncan to Zamora | 4,792.67 mi (7,713.05 km) |
| Duncan to Zaragoza | 5,006.41 mi (8,057.04 km) |
| Duncan to Zarautz | 4,892.90 mi (7,874.36 km) |
| Duncan to Zuera | 5,002.82 mi (8,051.27 km) |
| Duncan to Zumaia | 4,888.48 mi (7,867.25 km) |
| Duncan to Zumarraga | 4,893.21 mi (7,874.86 km) |
| Duncan to Longyearbyen | 4,201.04 mi (6,760.92 km) |
| Duncan to Ahus | 5,032.32 mi (8,098.74 km) |
| Duncan to Akersberga | 4,997.08 mi (8,042.02 km) |
| Duncan to Alingsas | 4,897.00 mi (7,880.96 km) |
| Duncan to Almhult | 5,001.44 mi (8,049.04 km) |
| Duncan to Alta | 5,004.06 mi (8,053.26 km) |
| Duncan to Amal | 4,857.40 mi (7,817.23 km) |
