| Greenock to Point Pleasant (New Jersey) | 3,231.97 mi (5,201.36 km) |
| Greenock to Pomona (California) | 5,083.42 mi (8,180.98 km) |
| Greenock to Pompano Beach (Florida) | 4,176.42 mi (6,721.30 km) |
| Greenock to Pompton Lakes (New Jersey) | 3,195.95 mi (5,143.39 km) |
| Greenock to Pompton Plains (New Jersey) | 3,198.41 mi (5,147.34 km) |
| Greenock to Ponca City (Oklahoma) | 4,248.14 mi (6,836.72 km) |
| Greenock to Ponce (Puerto Rico) | 4,111.82 mi (6,617.34 km) |
| Greenock to Pontiac (Illinois) | 3,732.31 mi (6,006.57 km) |
| Greenock to Pontiac (Michigan) | 3,452.05 mi (5,555.53 km) |
| Greenock to Pooler (Georgia) | 3,907.60 mi (6,288.68 km) |
| Greenock to Poplar Bluff (Missouri) | 4,007.37 mi (6,449.24 km) |
| Greenock to Poquoson (Virginia) | 3,463.28 mi (5,573.62 km) |
| Greenock to Port Angeles (Washington) | 4,426.41 mi (7,123.62 km) |
| Greenock to Port Arthur (Texas) | 4,504.37 mi (7,249.08 km) |
| Greenock to Port Charlotte (Florida) | 4,212.39 mi (6,779.18 km) |
