| Greenock to Pombal | 1,121.74 mi (1,805.26 km) |
| Greenock to Ponta Delgada | 1,586.45 mi (2,553.14 km) |
| Greenock to Ponta do Sol | 1,713.58 mi (2,757.74 km) |
| Greenock to Ponte da Barca | 991.30 mi (1,595.34 km) |
| Greenock to Ponte de Lima | 994.71 mi (1,600.83 km) |
| Greenock to Ponte de Sor | 1,163.44 mi (1,872.37 km) |
| Greenock to Portalegre | 1,155.65 mi (1,859.83 km) |
| Greenock to Portimao | 1,311.69 mi (2,110.95 km) |
| Greenock to Porto | 1,036.45 mi (1,668.00 km) |
| Greenock to Porto de Mos | 1,144.63 mi (1,842.11 km) |
| Greenock to Povoa de Lanhoso | 1,006.18 mi (1,619.29 km) |
| Greenock to Povoa de Santa Iria | 1,197.12 mi (1,926.58 km) |
| Greenock to Povoa de Varzim | 1,022.64 mi (1,645.78 km) |
| Greenock to Praia da Vitoria | 1,568.59 mi (2,524.41 km) |
| Greenock to Praia do Carvoeiro | 1,312.36 mi (2,112.04 km) |
