| Duncan to Oliveira de Frades | 4,706.43 mi (7,574.26 km) |
| Duncan to Oliveira do Bairro | 4,698.03 mi (7,560.75 km) |
| Duncan to Oliveira do Hospital | 4,732.80 mi (7,616.70 km) |
| Duncan to Ourem | 4,722.52 mi (7,600.16 km) |
| Duncan to Ovar | 4,680.75 mi (7,532.95 km) |
| Duncan to Pacos de Ferreira | 4,678.97 mi (7,530.08 km) |
| Duncan to Palmela | 4,741.50 mi (7,630.71 km) |
| Duncan to Paredes | 4,684.16 mi (7,538.42 km) |
| Duncan to Paredes de Coura | 4,651.27 mi (7,485.50 km) |
| Duncan to Penacova | 4,715.98 mi (7,589.64 km) |
| Duncan to Penafiel | 4,686.25 mi (7,541.79 km) |
| Duncan to Peniche | 4,694.23 mi (7,554.63 km) |
| Duncan to Peso da Regua | 4,710.99 mi (7,581.60 km) |
| Duncan to Pinhal Novo | 4,738.76 mi (7,626.30 km) |
| Duncan to Pinhel | 4,756.04 mi (7,654.10 km) |
