| Delaware to Portage (Michigan) | 185.99 mi (299.32 km) |
| Delaware to Portage (Wisconsin) | 398.36 mi (641.10 km) |
| Delaware to Portales (New Mexico) | 1,189.61 mi (1,914.49 km) |
| Delaware to Porterville (California) | 1,961.20 mi (3,156.25 km) |
| Delaware to Portland (Maine) | 697.19 mi (1,122.03 km) |
| Delaware to Portland (Oregon) | 2,014.26 mi (3,241.64 km) |
| Delaware to Portland (Tennessee) | 316.11 mi (508.73 km) |
| Delaware to Portland (Texas) | 1,179.37 mi (1,898.01 km) |
| Delaware to Portsmouth (New Hampshire) | 661.95 mi (1,065.31 km) |
| Delaware to Portsmouth (Ohio) | 106.03 mi (170.64 km) |
| Delaware to Portsmouth (Virginia) | 433.66 mi (697.91 km) |
| Delaware to Post Falls (Idaho) | 1,743.89 mi (2,806.52 km) |
| Delaware to Potomac (Maryland) | 324.82 mi (522.75 km) |
| Delaware to Potomac Park (California) | 1,974.27 mi (3,177.29 km) |
| Delaware to Pottstown (Pennsylvania) | 391.58 mi (630.19 km) |
