| Belfast to Oliveira de Frades | 964.58 mi (1,552.34 km) |
| Belfast to Oliveira do Bairro | 980.00 mi (1,577.15 km) |
| Belfast to Oliveira do Hospital | 987.75 mi (1,589.63 km) |
| Belfast to Ourem | 1,039.92 mi (1,673.59 km) |
| Belfast to Ovar | 956.73 mi (1,539.71 km) |
| Belfast to Pacos de Ferreira | 927.91 mi (1,493.33 km) |
| Belfast to Palmela | 1,116.23 mi (1,796.41 km) |
| Belfast to Paredes | 932.13 mi (1,500.12 km) |
| Belfast to Paredes de Coura | 884.52 mi (1,423.50 km) |
| Belfast to Penacova | 995.76 mi (1,602.53 km) |
| Belfast to Penafiel | 931.45 mi (1,499.03 km) |
| Belfast to Peniche | 1,065.48 mi (1,714.73 km) |
| Belfast to Peso da Regua | 931.85 mi (1,499.67 km) |
| Belfast to Pinhal Novo | 1,111.90 mi (1,789.43 km) |
| Belfast to Pinhel | 955.82 mi (1,538.25 km) |
