| Middle River to Santarem | 3,530.99 mi (5,682.57 km) |
| Middle River to Santiago do Cacem | 3,563.94 mi (5,735.60 km) |
| Middle River to Santo Andre | 3,560.52 mi (5,730.10 km) |
| Middle River to Santo Tirso | 3,486.43 mi (5,610.87 km) |
| Middle River to Sao Bras de Alportel | 3,629.44 mi (5,841.03 km) |
| Middle River to Sao Felix da Marinha | 3,486.53 mi (5,611.03 km) |
| Middle River to Sao Joao da Madeira | 3,496.55 mi (5,627.15 km) |
| Middle River to Sao Joao de Ver | 3,492.07 mi (5,619.95 km) |
| Middle River to Sao Mamede de Infesta | 3,483.39 mi (5,605.98 km) |
| Middle River to Sao Pedro do Sul | 3,520.82 mi (5,666.22 km) |
| Middle River to Satao | 3,537.41 mi (5,692.91 km) |
| Middle River to Seia | 3,547.15 mi (5,708.58 km) |
| Middle River to Senhora da Hora | 3,481.29 mi (5,602.59 km) |
| Middle River to Serpa | 3,620.66 mi (5,826.88 km) |
| Middle River to Serta | 3,544.43 mi (5,704.20 km) |
