| Clydebank to Oliveira de Frades | 1,062.95 mi (1,710.65 km) |
| Clydebank to Oliveira do Bairro | 1,079.02 mi (1,736.51 km) |
| Clydebank to Oliveira do Hospital | 1,085.22 mi (1,746.50 km) |
| Clydebank to Ourem | 1,138.77 mi (1,832.67 km) |
| Clydebank to Ovar | 1,056.19 mi (1,699.77 km) |
| Clydebank to Pacos de Ferreira | 1,027.00 mi (1,652.80 km) |
| Clydebank to Palmela | 1,215.42 mi (1,956.02 km) |
| Clydebank to Paredes | 1,031.03 mi (1,659.29 km) |
| Clydebank to Paredes de Coura | 984.26 mi (1,584.02 km) |
| Clydebank to Penacova | 1,094.20 mi (1,760.95 km) |
| Clydebank to Penafiel | 1,030.24 mi (1,658.02 km) |
| Clydebank to Peniche | 1,165.88 mi (1,876.30 km) |
| Clydebank to Peso da Regua | 1,029.39 mi (1,656.64 km) |
| Clydebank to Pinhal Novo | 1,211.13 mi (1,949.13 km) |
| Clydebank to Pinhel | 1,051.39 mi (1,692.06 km) |
