| Watertown Town to Oliveira de Frades | 3,182.56 mi (5,121.83 km) |
| Watertown Town to Oliveira do Bairro | 3,172.99 mi (5,106.43 km) |
| Watertown Town to Oliveira do Hospital | 3,208.04 mi (5,162.84 km) |
| Watertown Town to Ourem | 3,194.47 mi (5,141.00 km) |
| Watertown Town to Ovar | 3,156.84 mi (5,080.44 km) |
| Watertown Town to Pacos de Ferreira | 3,156.97 mi (5,080.65 km) |
| Watertown Town to Palmela | 3,210.08 mi (5,166.13 km) |
| Watertown Town to Paredes | 3,161.98 mi (5,088.71 km) |
| Watertown Town to Paredes de Coura | 3,131.79 mi (5,040.13 km) |
| Watertown Town to Penacova | 3,190.34 mi (5,134.36 km) |
| Watertown Town to Penafiel | 3,164.16 mi (5,092.23 km) |
| Watertown Town to Peniche | 3,164.39 mi (5,092.60 km) |
| Watertown Town to Peso da Regua | 3,189.48 mi (5,132.98 km) |
| Watertown Town to Pinhal Novo | 3,207.49 mi (5,161.95 km) |
| Watertown Town to Pinhel | 3,234.03 mi (5,204.67 km) |
