| Duncan to Wayne (Michigan) | 949.16 mi (1,527.53 km) |
| Duncan to Waynesboro (Pennsylvania) | 1,173.56 mi (1,888.65 km) |
| Duncan to Waynesboro (Virginia) | 1,084.63 mi (1,745.55 km) |
| Duncan to Weatherford (Oklahoma) | 81.33 mi (130.88 km) |
| Duncan to Weatherford (Texas) | 123.78 mi (199.21 km) |
| Duncan to Webb City (Missouri) | 263.98 mi (424.83 km) |
| Duncan to Webster (Texas) | 383.00 mi (616.38 km) |
| Duncan to Webster Groves (Missouri) | 504.19 mi (811.41 km) |
| Duncan to Weddington (North Carolina) | 974.49 mi (1,568.28 km) |
| Duncan to Weigelstown (Pennsylvania) | 1,215.80 mi (1,956.65 km) |
| Duncan to Weirton (West Virginia) | 1,032.02 mi (1,660.87 km) |
| Duncan to Wekiwa Springs (Florida) | 1,049.50 mi (1,689.00 km) |
| Duncan to Welby (Colorado) | 532.95 mi (857.70 km) |
| Duncan to Wellington (Colorado) | 575.26 mi (925.79 km) |
| Duncan to Wellington (Florida) | 1,180.61 mi (1,900.01 km) |
