| Gretna to Palencia | 4,657.78 mi (7,495.98 km) |
| Gretna to Palleja | 4,984.47 mi (8,021.73 km) |
| Gretna to Palma | 5,069.63 mi (8,158.79 km) |
| Gretna to Palma del Rio | 4,728.77 mi (7,610.21 km) |
| Gretna to Palomares del Rio | 4,699.54 mi (7,563.18 km) |
| Gretna to Palos de la Frontera | 4,658.55 mi (7,497.22 km) |
| Gretna to Pamplona | 4,774.76 mi (7,684.23 km) |
| Gretna to Paracuellos de Jarama | 4,743.61 mi (7,634.10 km) |
| Gretna to Parla | 4,739.02 mi (7,626.71 km) |
| Gretna to Paterna | 4,921.66 mi (7,920.65 km) |
| Gretna to Peligros | 4,824.71 mi (7,764.63 km) |
| Gretna to Penarroya-Pueblonuevo | 4,714.24 mi (7,586.84 km) |
| Gretna to Petrel | 4,932.70 mi (7,938.42 km) |
| Gretna to Picana | 4,923.79 mi (7,924.07 km) |
| Gretna to Picasent | 4,924.66 mi (7,925.47 km) |
