| Reading to Oliveira de Frades | 817.45 mi (1,315.56 km) |
| Reading to Oliveira do Bairro | 836.60 mi (1,346.38 km) |
| Reading to Oliveira do Hospital | 834.20 mi (1,342.52 km) |
| Reading to Ourem | 893.37 mi (1,437.73 km) |
| Reading to Ovar | 817.18 mi (1,315.13 km) |
| Reading to Pacos de Ferreira | 786.99 mi (1,266.54 km) |
| Reading to Palmela | 969.62 mi (1,560.45 km) |
| Reading to Paredes | 789.80 mi (1,271.06 km) |
| Reading to Paredes de Coura | 750.07 mi (1,207.12 km) |
| Reading to Penacova | 847.98 mi (1,364.69 km) |
| Reading to Penafiel | 788.39 mi (1,268.79 km) |
| Reading to Peniche | 928.74 mi (1,494.66 km) |
| Reading to Peso da Regua | 780.72 mi (1,256.44 km) |
| Reading to Pinhal Novo | 965.73 mi (1,554.20 km) |
| Reading to Pinhel | 792.26 mi (1,275.02 km) |
