| Delaware to Pell City (Alabama) | 496.84 mi (799.58 km) |
| Delaware to Pella (Iowa) | 520.06 mi (836.95 km) |
| Delaware to Pembroke Pines (Florida) | 998.59 mi (1,607.08 km) |
| Delaware to Pendleton (Oregon) | 1,828.91 mi (2,943.35 km) |
| Delaware to Pensacola (Florida) | 718.38 mi (1,156.11 km) |
| Delaware to Peoria (Arizona) | 1,664.84 mi (2,679.30 km) |
| Delaware to Peoria (Illinois) | 345.01 mi (555.24 km) |
| Delaware to Perris (California) | 1,923.44 mi (3,095.47 km) |
| Delaware to Perry (Georgia) | 541.05 mi (870.74 km) |
| Delaware to Perry Hall (Maryland) | 355.04 mi (571.39 km) |
| Delaware to Perrysburg (Ohio) | 91.47 mi (147.21 km) |
| Delaware to Perth Amboy (New Jersey) | 463.19 mi (745.44 km) |
| Delaware to Peru (Indiana) | 161.00 mi (259.11 km) |
| Delaware to Petal (Mississippi) | 707.00 mi (1,137.81 km) |
| Delaware to Petaluma (California) | 2,102.98 mi (3,384.42 km) |
