| Duncan to Watervliet (New York) | 1,417.51 mi (2,281.26 km) |
| Duncan to Watsonville (California) | 1,344.18 mi (2,163.24 km) |
| Duncan to Wauconda (Illinois) | 751.51 mi (1,209.43 km) |
| Duncan to Waukee (Iowa) | 534.58 mi (860.32 km) |
| Duncan to Waukegan (Illinois) | 765.94 mi (1,232.66 km) |
| Duncan to Waukesha (Wisconsin) | 782.44 mi (1,259.22 km) |
| Duncan to Waunakee (Wisconsin) | 750.48 mi (1,207.77 km) |
| Duncan to Waupun (Wisconsin) | 797.09 mi (1,282.79 km) |
| Duncan to Wausau (Wisconsin) | 842.57 mi (1,355.99 km) |
| Duncan to Wauwatosa (Wisconsin) | 792.59 mi (1,275.55 km) |
| Duncan to Waverly (Iowa) | 637.07 mi (1,025.26 km) |
| Duncan to Waverly (Michigan) | 911.92 mi (1,467.59 km) |
| Duncan to Waxahachie (Texas) | 160.18 mi (257.79 km) |
| Duncan to Waxhaw (North Carolina) | 974.50 mi (1,568.30 km) |
| Duncan to Waycross (Georgia) | 930.90 mi (1,498.13 km) |
