| Duncan to Wanaque (New Jersey) | 1,361.16 mi (2,190.58 km) |
| Duncan to Wantagh (New York) | 1,396.38 mi (2,247.25 km) |
| Duncan to Warner Robins (Georgia) | 831.64 mi (1,338.40 km) |
| Duncan to Warr Acres (Oklahoma) | 70.37 mi (113.25 km) |
| Duncan to Warren (Michigan) | 972.53 mi (1,565.14 km) |
| Duncan to Warren (Ohio) | 1,038.64 mi (1,671.54 km) |
| Duncan to Warrensburg (Missouri) | 372.97 mi (600.23 km) |
| Duncan to Warrensville Heights (Ohio) | 1,009.79 mi (1,625.10 km) |
| Duncan to Warrenville (Illinois) | 728.89 mi (1,173.03 km) |
| Duncan to Warrington (Florida) | 682.36 mi (1,098.16 km) |
| Duncan to Warsaw (Indiana) | 803.77 mi (1,293.54 km) |
| Duncan to Warwick (Rhode Island) | 1,515.27 mi (2,438.59 km) |
| Duncan to Wasco (California) | 1,212.56 mi (1,951.43 km) |
| Duncan to Washington (District of Columbia) | 1,193.40 mi (1,920.60 km) |
| Duncan to Washington (Illinois) | 629.61 mi (1,013.26 km) |
