| Didcot to Pell City (Alabama) | 4,244.75 mi (6,831.27 km) |
| Didcot to Pella (Iowa) | 4,123.98 mi (6,636.90 km) |
| Didcot to Pembroke Pines (Florida) | 4,373.67 mi (7,038.74 km) |
| Didcot to Pendleton (Oregon) | 4,761.40 mi (7,662.74 km) |
| Didcot to Pensacola (Florida) | 4,437.19 mi (7,140.97 km) |
| Didcot to Peoria (Arizona) | 5,216.67 mi (8,395.42 km) |
| Didcot to Peoria (Illinois) | 4,030.46 mi (6,486.39 km) |
| Didcot to Perris (California) | 5,381.79 mi (8,661.16 km) |
| Didcot to Perry (Georgia) | 4,194.35 mi (6,750.16 km) |
| Didcot to Perry Hall (Maryland) | 3,571.87 mi (5,748.37 km) |
| Didcot to Perrysburg (Ohio) | 3,763.16 mi (6,056.22 km) |
| Didcot to Perth Amboy (New Jersey) | 3,432.81 mi (5,524.57 km) |
| Didcot to Peru (Indiana) | 3,893.70 mi (6,266.31 km) |
| Didcot to Petal (Mississippi) | 4,475.00 mi (7,201.81 km) |
| Didcot to Petaluma (California) | 5,295.18 mi (8,521.77 km) |
