| Dayton to Oliveira de Frades | 3,874.29 mi (6,235.06 km) |
| Dayton to Oliveira do Bairro | 3,865.41 mi (6,220.78 km) |
| Dayton to Oliveira do Hospital | 3,900.31 mi (6,276.94 km) |
| Dayton to Ourem | 3,888.73 mi (6,258.31 km) |
| Dayton to Ovar | 3,848.58 mi (6,193.70 km) |
| Dayton to Pacos de Ferreira | 3,847.58 mi (6,192.07 km) |
| Dayton to Palmela | 3,906.45 mi (6,286.83 km) |
| Dayton to Paredes | 3,852.69 mi (6,200.31 km) |
| Dayton to Paredes de Coura | 3,820.90 mi (6,149.14 km) |
| Dayton to Penacova | 3,883.14 mi (6,249.31 km) |
| Dayton to Penafiel | 3,854.82 mi (6,203.74 km) |
| Dayton to Peniche | 3,859.75 mi (6,211.67 km) |
| Dayton to Peso da Regua | 3,879.81 mi (6,243.95 km) |
| Dayton to Pinhal Novo | 3,903.76 mi (6,282.50 km) |
| Dayton to Pinhel | 3,924.68 mi (6,316.16 km) |
