| Williamsport to Oliveira de Frades | 3,491.54 mi (5,619.09 km) |
| Williamsport to Oliveira do Bairro | 3,482.23 mi (5,604.11 km) |
| Williamsport to Oliveira do Hospital | 3,517.23 mi (5,660.43 km) |
| Williamsport to Ourem | 3,504.39 mi (5,639.77 km) |
| Williamsport to Ovar | 3,465.82 mi (5,577.70 km) |
| Williamsport to Pacos de Ferreira | 3,465.52 mi (5,577.22 km) |
| Williamsport to Palmela | 3,520.74 mi (5,666.08 km) |
| Williamsport to Paredes | 3,470.57 mi (5,585.35 km) |
| Williamsport to Paredes de Coura | 3,439.76 mi (5,535.75 km) |
| Williamsport to Penacova | 3,499.73 mi (5,632.27 km) |
| Williamsport to Penafiel | 3,472.74 mi (5,588.83 km) |
| Williamsport to Peniche | 3,474.70 mi (5,591.99 km) |
| Williamsport to Peso da Regua | 3,497.93 mi (5,629.38 km) |
| Williamsport to Pinhal Novo | 3,518.11 mi (5,661.85 km) |
| Williamsport to Pinhel | 3,542.62 mi (5,701.29 km) |
