| Fort Madison to Santarem | 4,205.48 mi (6,768.07 km) |
| Fort Madison to Santiago do Cacem | 4,247.85 mi (6,836.25 km) |
| Fort Madison to Santo Andre | 4,244.33 mi (6,830.59 km) |
| Fort Madison to Santo Tirso | 4,142.95 mi (6,667.43 km) |
| Fort Madison to Sao Bras de Alportel | 4,317.22 mi (6,947.89 km) |
| Fort Madison to Sao Felix da Marinha | 4,146.09 mi (6,672.48 km) |
| Fort Madison to Sao Joao da Madeira | 4,156.85 mi (6,689.80 km) |
| Fort Madison to Sao Joao de Ver | 4,152.09 mi (6,682.14 km) |
| Fort Madison to Sao Mamede de Infesta | 4,141.47 mi (6,665.05 km) |
| Fort Madison to Sao Pedro do Sul | 4,181.05 mi (6,728.76 km) |
| Fort Madison to Satao | 4,196.74 mi (6,753.99 km) |
| Fort Madison to Seia | 4,208.97 mi (6,773.68 km) |
| Fort Madison to Senhora da Hora | 4,139.64 mi (6,662.10 km) |
| Fort Madison to Serpa | 4,301.68 mi (6,922.89 km) |
| Fort Madison to Serta | 4,212.58 mi (6,779.49 km) |
