| Watertown Town to Santarem | 3,200.78 mi (5,151.16 km) |
| Watertown Town to Santiago do Cacem | 3,236.40 mi (5,208.48 km) |
| Watertown Town to Santo Andre | 3,232.94 mi (5,202.92 km) |
| Watertown Town to Santo Tirso | 3,151.97 mi (5,072.60 km) |
| Watertown Town to Sao Bras de Alportel | 3,303.17 mi (5,315.93 km) |
| Watertown Town to Sao Felix da Marinha | 3,152.71 mi (5,073.80 km) |
| Watertown Town to Sao Joao da Madeira | 3,162.90 mi (5,090.20 km) |
| Watertown Town to Sao Joao de Ver | 3,158.36 mi (5,082.89 km) |
| Watertown Town to Sao Mamede de Infesta | 3,149.25 mi (5,068.23 km) |
| Watertown Town to Sao Pedro do Sul | 3,187.20 mi (5,129.31 km) |
| Watertown Town to Satao | 3,203.62 mi (5,155.72 km) |
| Watertown Town to Seia | 3,213.91 mi (5,172.30 km) |
| Watertown Town to Senhora da Hora | 3,147.20 mi (5,064.93 km) |
| Watertown Town to Serpa | 3,292.37 mi (5,298.56 km) |
| Watertown Town to Serta | 3,212.66 mi (5,170.27 km) |
