| Duncan to Farmersville (California) | 1,202.27 mi (1,934.87 km) |
| Duncan to Farmington (Michigan) | 955.89 mi (1,538.36 km) |
| Duncan to Farmington (Minnesota) | 743.01 mi (1,195.76 km) |
| Duncan to Farmington (Missouri) | 474.00 mi (762.82 km) |
| Duncan to Farmington (New Mexico) | 595.74 mi (958.75 km) |
| Duncan to Farmington (Utah) | 882.57 mi (1,420.36 km) |
| Duncan to Farmington Hills (Michigan) | 956.81 mi (1,539.83 km) |
| Duncan to Farmingville (New York) | 1,422.62 mi (2,289.49 km) |
| Duncan to Farragut (Tennessee) | 780.43 mi (1,255.99 km) |
| Duncan to Fate (Texas) | 141.32 mi (227.43 km) |
| Duncan to Fayetteville (Arkansas) | 236.66 mi (380.87 km) |
| Duncan to Fayetteville (Georgia) | 773.60 mi (1,244.98 km) |
| Duncan to Fayetteville (North Carolina) | 1,073.70 mi (1,727.95 km) |
| Duncan to Federal Heights (Colorado) | 536.07 mi (862.72 km) |
| Duncan to Federal Way (Washington) | 1,539.53 mi (2,477.64 km) |
