| Duluth to Santarem | 4,047.24 mi (6,513.40 km) |
| Duluth to Santiago do Cacem | 4,097.74 mi (6,594.68 km) |
| Duluth to Santo Andre | 4,094.18 mi (6,588.95 km) |
| Duluth to Santo Tirso | 3,969.95 mi (6,389.01 km) |
| Duluth to Sao Bras de Alportel | 4,169.86 mi (6,710.74 km) |
| Duluth to Sao Felix da Marinha | 3,975.60 mi (6,398.11 km) |
| Duluth to Sao Joao da Madeira | 3,986.84 mi (6,416.19 km) |
| Duluth to Sao Joao de Ver | 3,981.90 mi (6,408.25 km) |
| Duluth to Sao Mamede de Infesta | 3,969.79 mi (6,388.76 km) |
| Duluth to Sao Pedro do Sul | 4,010.63 mi (6,454.49 km) |
| Duluth to Satao | 4,025.32 mi (6,478.13 km) |
| Duluth to Seia | 4,039.51 mi (6,500.96 km) |
| Duluth to Senhora da Hora | 3,968.22 mi (6,386.24 km) |
| Duluth to Serpa | 4,148.11 mi (6,675.75 km) |
| Duluth to Serta | 4,048.57 mi (6,515.55 km) |
