| Smithville to Santarem | 4,395.78 mi (7,074.33 km) |
| Smithville to Santiago do Cacem | 4,438.31 mi (7,142.77 km) |
| Smithville to Santo Andre | 4,434.79 mi (7,137.11 km) |
| Smithville to Santo Tirso | 4,332.74 mi (6,972.88 km) |
| Smithville to Sao Bras de Alportel | 4,507.72 mi (7,254.48 km) |
| Smithville to Sao Felix da Marinha | 4,335.99 mi (6,978.09 km) |
| Smithville to Sao Joao da Madeira | 4,346.77 mi (6,995.44 km) |
| Smithville to Sao Joao de Ver | 4,342.00 mi (6,987.77 km) |
| Smithville to Sao Mamede de Infesta | 4,331.32 mi (6,970.58 km) |
| Smithville to Sao Pedro do Sul | 4,370.96 mi (7,034.39 km) |
| Smithville to Satao | 4,386.61 mi (7,059.56 km) |
| Smithville to Seia | 4,398.92 mi (7,079.38 km) |
| Smithville to Senhora da Hora | 4,329.50 mi (6,967.65 km) |
| Smithville to Serpa | 4,492.10 mi (7,229.33 km) |
| Smithville to Serta | 4,402.72 mi (7,085.50 km) |
