| Duncan to Taunton (Massachusetts) | 1,534.92 mi (2,470.21 km) |
| Duncan to Tavares (Florida) | 1,029.81 mi (1,657.32 km) |
| Duncan to Taylor (Michigan) | 952.73 mi (1,533.27 km) |
| Duncan to Taylor (Texas) | 275.66 mi (443.64 km) |
| Duncan to Taylors (South Carolina) | 885.85 mi (1,425.63 km) |
| Duncan to Taylorsville (Utah) | 875.00 mi (1,408.17 km) |
| Duncan to Taylorville (Illinois) | 587.84 mi (946.04 km) |
| Duncan to Teays Valley (West Virginia) | 927.24 mi (1,492.25 km) |
| Duncan to Tega Cay (South Carolina) | 959.01 mi (1,543.39 km) |
| Duncan to Tehachapi (California) | 1,164.24 mi (1,873.67 km) |
| Duncan to Temecula (California) | 1,100.87 mi (1,771.68 km) |
| Duncan to Temescal Valley (California) | 1,117.22 mi (1,797.99 km) |
| Duncan to Tempe (Arizona) | 806.15 mi (1,297.37 km) |
| Duncan to Temple (Texas) | 239.27 mi (385.07 km) |
| Duncan to Temple City (California) | 1,147.55 mi (1,846.80 km) |
