| Keystone to Point Pleasant (New Jersey) | 957.71 mi (1,541.28 km) |
| Keystone to Pomona (California) | 2,109.65 mi (3,395.15 km) |
| Keystone to Pompano Beach (Florida) | 200.10 mi (322.03 km) |
| Keystone to Pompton Lakes (New Jersey) | 1,006.09 mi (1,619.15 km) |
| Keystone to Pompton Plains (New Jersey) | 1,003.47 mi (1,614.93 km) |
| Keystone to Ponca City (Oklahoma) | 1,029.72 mi (1,657.18 km) |
| Keystone to Ponce (Puerto Rico) | 1,230.96 mi (1,981.04 km) |
| Keystone to Pontiac (Illinois) | 945.58 mi (1,521.77 km) |
| Keystone to Pontiac (Michigan) | 1,003.84 mi (1,615.53 km) |
| Keystone to Pooler (Georgia) | 286.00 mi (460.27 km) |
| Keystone to Poplar Bluff (Missouri) | 749.87 mi (1,206.80 km) |
| Keystone to Poquoson (Virginia) | 719.76 mi (1,158.34 km) |
| Keystone to Port Angeles (Washington) | 2,571.53 mi (4,138.47 km) |
| Keystone to Port Arthur (Texas) | 694.49 mi (1,117.67 km) |
| Keystone to Port Charlotte (Florida) | 84.16 mi (135.45 km) |
