| Sligo to Oliveira do Bairro | 950.03 mi (1,528.93 km) |
| Sligo to Oliveira do Hospital | 961.37 mi (1,547.17 km) |
| Sligo to Ourem | 1,009.92 mi (1,625.31 km) |
| Sligo to Ovar | 925.88 mi (1,490.05 km) |
| Sligo to Pacos de Ferreira | 898.22 mi (1,445.55 km) |
| Sligo to Palmela | 1,084.94 mi (1,746.04 km) |
| Sligo to Paredes | 902.85 mi (1,452.99 km) |
| Sligo to Paredes de Coura | 853.59 mi (1,373.71 km) |
| Sligo to Penacova | 967.08 mi (1,556.37 km) |
| Sligo to Penafiel | 902.45 mi (1,452.36 km) |
| Sligo to Peniche | 1,031.47 mi (1,659.99 km) |
| Sligo to Peso da Regua | 905.80 mi (1,457.75 km) |
| Sligo to Pinhal Novo | 1,080.51 mi (1,738.92 km) |
| Sligo to Pinhel | 933.90 mi (1,502.97 km) |
| Sligo to Pombal | 991.55 mi (1,595.75 km) |
