| Fort Oglethorpe to Oliveira de Frades | 4,087.58 mi (6,578.32 km) |
| Fort Oglethorpe to Oliveira do Bairro | 4,077.17 mi (6,561.58 km) |
| Fort Oglethorpe to Oliveira do Hospital | 4,112.36 mi (6,618.20 km) |
| Fort Oglethorpe to Ourem | 4,095.99 mi (6,591.86 km) |
| Fort Oglethorpe to Ovar | 4,061.88 mi (6,536.97 km) |
| Fort Oglethorpe to Pacos de Ferreira | 4,063.27 mi (6,539.20 km) |
| Fort Oglethorpe to Palmela | 4,107.59 mi (6,610.54 km) |
| Fort Oglethorpe to Paredes | 4,068.16 mi (6,547.07 km) |
| Fort Oglethorpe to Paredes de Coura | 4,039.56 mi (6,501.04 km) |
| Fort Oglethorpe to Penacova | 4,094.02 mi (6,588.70 km) |
| Fort Oglethorpe to Penafiel | 4,070.40 mi (6,550.67 km) |
| Fort Oglethorpe to Peniche | 4,064.07 mi (6,540.50 km) |
| Fort Oglethorpe to Peso da Regua | 4,096.01 mi (6,591.90 km) |
| Fort Oglethorpe to Pinhal Novo | 4,105.21 mi (6,606.70 km) |
| Fort Oglethorpe to Pinhel | 4,140.17 mi (6,662.96 km) |
