| Ontario to Princeton (Florida) | 2,293.55 mi (3,691.12 km) |
| Ontario to Princeton (New Jersey) | 2,379.28 mi (3,829.08 km) |
| Ontario to Princeton (Texas) | 1,213.60 mi (1,953.10 km) |
| Ontario to Princeton Meadows (New Jersey) | 2,384.84 mi (3,838.04 km) |
| Ontario to Prineville (Oregon) | 729.79 mi (1,174.49 km) |
| Ontario to Prior Lake (Minnesota) | 1,478.44 mi (2,379.32 km) |
| Ontario to Progress (Pennsylvania) | 2,265.33 mi (3,645.70 km) |
| Ontario to Prospect Heights (Illinois) | 1,697.63 mi (2,732.08 km) |
| Ontario to Prosper (Texas) | 1,195.57 mi (1,924.08 km) |
| Ontario to Providence (Rhode Island) | 2,542.35 mi (4,091.52 km) |
| Ontario to Provo (Utah) | 539.76 mi (868.66 km) |
| Ontario to Prunedale (California) | 297.48 mi (478.75 km) |
| Ontario to Pueblo (Colorado) | 780.78 mi (1,256.54 km) |
| Ontario to Pueblo West (Colorado) | 776.61 mi (1,249.83 km) |
| Ontario to Pullman (Washington) | 877.39 mi (1,412.02 km) |
