| Duncanville to Oliveira de Frades | 4,734.84 mi (7,619.99 km) |
| Duncanville to Oliveira do Bairro | 4,725.69 mi (7,605.26 km) |
| Duncanville to Oliveira do Hospital | 4,760.65 mi (7,661.53 km) |
| Duncanville to Ourem | 4,748.07 mi (7,641.27 km) |
| Duncanville to Ovar | 4,709.13 mi (7,578.61 km) |
| Duncanville to Pacos de Ferreira | 4,708.50 mi (7,577.59 km) |
| Duncanville to Palmela | 4,764.18 mi (7,667.21 km) |
| Duncanville to Paredes | 4,713.58 mi (7,585.78 km) |
| Duncanville to Paredes de Coura | 4,682.19 mi (7,535.26 km) |
| Duncanville to Penacova | 4,743.25 mi (7,633.53 km) |
| Duncanville to Penafiel | 4,715.73 mi (7,589.24 km) |
| Duncanville to Peniche | 4,718.34 mi (7,593.43 km) |
| Duncanville to Peso da Regua | 4,740.82 mi (7,629.61 km) |
| Duncanville to Pinhal Novo | 4,761.58 mi (7,663.02 km) |
| Duncanville to Pinhel | 4,785.60 mi (7,701.68 km) |
