| Duncan to Forrest City (Arkansas) | 405.78 mi (653.04 km) |
| Duncan to Fort Atkinson (Wisconsin) | 757.31 mi (1,218.77 km) |
| Duncan to Fort Bliss (Texas) | 522.97 mi (841.65 km) |
| Duncan to Fort Campbell North (Kentucky) | 604.48 mi (972.82 km) |
| Duncan to Fort Carson (Colorado) | 476.48 mi (766.82 km) |
| Duncan to Fort Collins (Colorado) | 570.06 mi (917.42 km) |
| Duncan to Fort Dodge (Iowa) | 586.50 mi (943.87 km) |
| Duncan to Fort Drum (New York) | 1,347.48 mi (2,168.56 km) |
| Duncan to Fort Hood (Texas) | 235.41 mi (378.85 km) |
| Duncan to Fort Hunt (Virginia) | 1,189.53 mi (1,914.37 km) |
| Duncan to Fort Lauderdale (Florida) | 1,205.76 mi (1,940.48 km) |
| Duncan to Fort Lee (New Jersey) | 1,374.89 mi (2,212.67 km) |
| Duncan to Fort Leonard Wood (Missouri) | 392.12 mi (631.05 km) |
| Duncan to Fort Lewis (Washington) | 1,542.93 mi (2,483.10 km) |
| Duncan to Fort Madison (Iowa) | 552.74 mi (889.55 km) |
