| Circleville to Oliveira de Frades | 3,820.01 mi (6,147.71 km) |
| Circleville to Oliveira do Bairro | 3,810.89 mi (6,133.03 km) |
| Circleville to Oliveira do Hospital | 3,845.84 mi (6,189.29 km) |
| Circleville to Ourem | 3,833.51 mi (6,169.44 km) |
| Circleville to Ovar | 3,794.30 mi (6,106.33 km) |
| Circleville to Pacos de Ferreira | 3,793.68 mi (6,105.33 km) |
| Circleville to Palmela | 3,850.33 mi (6,196.50 km) |
| Circleville to Paredes | 3,798.76 mi (6,113.51 km) |
| Circleville to Paredes de Coura | 3,767.48 mi (6,063.17 km) |
| Circleville to Penacova | 3,828.48 mi (6,161.35 km) |
| Circleville to Penafiel | 3,800.91 mi (6,116.97 km) |
| Circleville to Peniche | 3,804.08 mi (6,122.07 km) |
| Circleville to Peso da Regua | 3,826.01 mi (6,157.37 km) |
| Circleville to Pinhal Novo | 3,847.68 mi (6,192.24 km) |
| Circleville to Pinhel | 3,870.78 mi (6,229.42 km) |
