| San Marcos to Oliveira de Frades | 5,622.23 mi (9,048.11 km) |
| San Marcos to Oliveira do Bairro | 5,617.17 mi (9,039.97 km) |
| San Marcos to Oliveira do Hospital | 5,650.55 mi (9,093.67 km) |
| San Marcos to Ourem | 5,650.10 mi (9,092.96 km) |
| San Marcos to Ovar | 5,597.16 mi (9,007.76 km) |
| San Marcos to Pacos de Ferreira | 5,590.46 mi (8,996.98 km) |
| San Marcos to Palmela | 5,680.45 mi (9,141.81 km) |
| San Marcos to Paredes | 5,595.99 mi (9,005.88 km) |
| San Marcos to Paredes de Coura | 5,557.18 mi (8,943.41 km) |
| San Marcos to Penacova | 5,636.48 mi (9,071.04 km) |
| San Marcos to Penafiel | 5,597.80 mi (9,008.79 km) |
| San Marcos to Peniche | 5,628.13 mi (9,057.60 km) |
| San Marcos to Peso da Regua | 5,620.62 mi (9,045.51 km) |
| San Marcos to Pinhal Novo | 5,677.20 mi (9,136.57 km) |
| San Marcos to Pinhel | 5,666.06 mi (9,118.65 km) |
