| Duncan to Pombal | 4,711.13 mi (7,581.83 km) |
| Duncan to Ponta Delgada | 3,933.70 mi (6,330.69 km) |
| Duncan to Ponta do Sol | 4,516.47 mi (7,268.56 km) |
| Duncan to Ponte da Barca | 4,661.47 mi (7,501.91 km) |
| Duncan to Ponte de Lima | 4,655.62 mi (7,492.49 km) |
| Duncan to Ponte de Sor | 4,761.37 mi (7,662.68 km) |
| Duncan to Portalegre | 4,787.48 mi (7,704.71 km) |
| Duncan to Portimao | 4,805.50 mi (7,733.71 km) |
| Duncan to Porto | 4,671.99 mi (7,518.84 km) |
| Duncan to Porto de Mos | 4,712.23 mi (7,583.60 km) |
| Duncan to Povoa de Lanhoso | 4,675.68 mi (7,524.78 km) |
| Duncan to Povoa de Santa Iria | 4,723.95 mi (7,602.46 km) |
| Duncan to Povoa de Varzim | 4,658.74 mi (7,497.51 km) |
| Duncan to Praia da Vitoria | 3,839.03 mi (6,178.31 km) |
| Duncan to Praia do Carvoeiro | 4,809.85 mi (7,740.71 km) |
