| Duncan to Pell City (Alabama) | 670.23 mi (1,078.64 km) |
| Duncan to Pella (Iowa) | 546.73 mi (879.88 km) |
| Duncan to Pembroke Pines (Florida) | 1,200.68 mi (1,932.31 km) |
| Duncan to Pendleton (Oregon) | 1,339.35 mi (2,155.48 km) |
| Duncan to Pensacola (Florida) | 686.00 mi (1,104.01 km) |
| Duncan to Peoria (Arizona) | 822.94 mi (1,324.39 km) |
| Duncan to Peoria (Illinois) | 624.47 mi (1,004.98 km) |
| Duncan to Perris (California) | 1,103.01 mi (1,775.13 km) |
| Duncan to Perry (Georgia) | 829.36 mi (1,334.73 km) |
| Duncan to Perry Hall (Maryland) | 1,227.14 mi (1,974.89 km) |
| Duncan to Perrysburg (Ohio) | 913.38 mi (1,469.94 km) |
| Duncan to Perth Amboy (New Jersey) | 1,355.23 mi (2,181.03 km) |
| Duncan to Peru (Indiana) | 776.43 mi (1,249.54 km) |
| Duncan to Petal (Mississippi) | 549.56 mi (884.43 km) |
| Duncan to Petaluma (California) | 1,393.32 mi (2,242.33 km) |
