| Ontario to Paramus (New Jersey) | 2,408.33 mi (3,875.84 km) |
| Ontario to Paris (Kentucky) | 1,872.31 mi (3,013.20 km) |
| Ontario to Paris (Tennessee) | 1,655.93 mi (2,664.96 km) |
| Ontario to Paris (Texas) | 1,263.61 mi (2,033.59 km) |
| Ontario to Park Forest (Illinois) | 1,703.47 mi (2,741.47 km) |
| Ontario to Park Ridge (Illinois) | 1,700.83 mi (2,737.23 km) |
| Ontario to Parker (Colorado) | 803.30 mi (1,292.78 km) |
| Ontario to Parker (South Carolina) | 1,993.56 mi (3,208.32 km) |
| Ontario to Parkersburg (West Virginia) | 2,017.78 mi (3,247.30 km) |
| Ontario to Parkland (Florida) | 2,280.48 mi (3,670.07 km) |
| Ontario to Parkland (Washington) | 939.62 mi (1,512.17 km) |
| Ontario to Parkville (Maryland) | 2,283.86 mi (3,675.52 km) |
| Ontario to Parkway (California) | 375.21 mi (603.85 km) |
| Ontario to Parlier (California) | 208.41 mi (335.40 km) |
| Ontario to Parma (Ohio) | 2,010.13 mi (3,234.99 km) |
