| Willoughby to Prichard (Alabama) | 838.80 mi (1,349.91 km) |
| Willoughby to Princeton (Florida) | 1,114.34 mi (1,793.35 km) |
| Willoughby to Princeton (New Jersey) | 362.42 mi (583.26 km) |
| Willoughby to Princeton (Texas) | 1,011.82 mi (1,628.36 km) |
| Willoughby to Princeton Meadows (New Jersey) | 368.10 mi (592.41 km) |
| Willoughby to Prineville (Oregon) | 1,983.60 mi (3,192.30 km) |
| Willoughby to Prior Lake (Minnesota) | 641.73 mi (1,032.76 km) |
| Willoughby to Progress (Pennsylvania) | 256.07 mi (412.11 km) |
| Willoughby to Prospect Heights (Illinois) | 336.75 mi (541.95 km) |
| Willoughby to Prosper (Texas) | 1,022.72 mi (1,645.91 km) |
| Willoughby to Providence (Rhode Island) | 514.92 mi (828.69 km) |
| Willoughby to Provo (Utah) | 1,572.90 mi (2,531.34 km) |
| Willoughby to Prunedale (California) | 2,160.06 mi (3,476.29 km) |
| Willoughby to Pueblo (Colorado) | 1,246.82 mi (2,006.56 km) |
| Willoughby to Pueblo West (Colorado) | 1,251.03 mi (2,013.33 km) |
