| Duncan to Wells Branch (Texas) | 283.46 mi (456.19 km) |
| Duncan to Wenatchee (Washington) | 1,460.56 mi (2,350.54 km) |
| Duncan to Wentzville (Missouri) | 489.68 mi (788.06 km) |
| Duncan to Weslaco (Texas) | 579.08 mi (931.94 km) |
| Duncan to Wesley Chapel (Florida) | 1,017.17 mi (1,636.98 km) |
| Duncan to West Allis (Wisconsin) | 790.12 mi (1,271.57 km) |
| Duncan to West Babylon (New York) | 1,404.74 mi (2,260.71 km) |
| Duncan to West Bend (Wisconsin) | 804.94 mi (1,295.43 km) |
| Duncan to West Carrollton (Ohio) | 831.13 mi (1,337.57 km) |
| Duncan to West Carson (California) | 1,163.49 mi (1,872.45 km) |
| Duncan to West Chester (Pennsylvania) | 1,279.22 mi (2,058.71 km) |
| Duncan to West Chicago (Illinois) | 730.73 mi (1,175.99 km) |
| Duncan to West Columbia (South Carolina) | 960.51 mi (1,545.80 km) |
| Duncan to West Covina (California) | 1,139.63 mi (1,834.06 km) |
| Duncan to West Des Moines (Iowa) | 534.09 mi (859.54 km) |
