| Duncan to Guroymak | 6,771.78 mi (10,898.13 km) |
| Duncan to Gurpinar | 6,826.23 mi (10,985.76 km) |
| Duncan to Hadim | 6,555.75 mi (10,550.45 km) |
| Duncan to Hakkari | 6,879.72 mi (11,071.84 km) |
| Duncan to Halfeti | 6,721.66 mi (10,817.47 km) |
| Duncan to Hamidiye | 6,178.90 mi (9,943.98 km) |
| Duncan to Hanimciftligi | 6,672.30 mi (10,738.03 km) |
| Duncan to Harbiye | 6,728.48 mi (10,828.44 km) |
| Duncan to Harran | 6,779.72 mi (10,910.90 km) |
| Duncan to Haskoy | 6,756.03 mi (10,872.78 km) |
| Duncan to Hassa | 6,703.26 mi (10,787.86 km) |
| Duncan to Hatay | 6,724.63 mi (10,822.24 km) |
| Duncan to Havran | 6,231.64 mi (10,028.85 km) |
| Duncan to Havza | 6,444.60 mi (10,371.58 km) |
| Duncan to Haymana | 6,425.83 mi (10,341.38 km) |
