| Serramanna to Oliveira do Bairro | 924.09 mi (1,487.18 km) |
| Serramanna to Oliveira do Hospital | 890.79 mi (1,433.58 km) |
| Serramanna to Ourem | 930.55 mi (1,497.57 km) |
| Serramanna to Ovar | 930.96 mi (1,498.23 km) |
| Serramanna to Pacos de Ferreira | 919.45 mi (1,479.71 km) |
| Serramanna to Palmela | 957.28 mi (1,540.60 km) |
| Serramanna to Paredes | 915.81 mi (1,473.86 km) |
| Serramanna to Paredes de Coura | 930.58 mi (1,497.62 km) |
| Serramanna to Penacova | 913.12 mi (1,469.52 km) |
| Serramanna to Penafiel | 913.27 mi (1,469.76 km) |
| Serramanna to Peniche | 974.96 mi (1,569.04 km) |
| Serramanna to Peso da Regua | 886.78 mi (1,427.14 km) |
| Serramanna to Pinhal Novo | 957.33 mi (1,540.68 km) |
| Serramanna to Pinhel | 848.98 mi (1,366.30 km) |
| Serramanna to Pombal | 932.49 mi (1,500.69 km) |
