| Chicago to Santarem | 3,997.74 mi (6,433.74 km) |
| Chicago to Santiago do Cacem | 4,039.89 mi (6,501.57 km) |
| Chicago to Santo Andre | 4,036.37 mi (6,495.91 km) |
| Chicago to Santo Tirso | 3,935.85 mi (6,334.13 km) |
| Chicago to Sao Bras de Alportel | 4,109.20 mi (6,613.11 km) |
| Chicago to Sao Felix da Marinha | 3,938.86 mi (6,338.98 km) |
| Chicago to Sao Joao da Madeira | 3,949.59 mi (6,356.25 km) |
| Chicago to Sao Joao de Ver | 3,944.84 mi (6,348.60 km) |
| Chicago to Sao Mamede de Infesta | 3,934.30 mi (6,331.64 km) |
| Chicago to Sao Pedro do Sul | 3,973.81 mi (6,395.22 km) |
| Chicago to Satao | 3,989.53 mi (6,420.53 km) |
| Chicago to Seia | 4,001.66 mi (6,440.06 km) |
| Chicago to Senhora da Hora | 3,932.45 mi (6,328.67 km) |
| Chicago to Serpa | 4,093.79 mi (6,588.32 km) |
| Chicago to Serta | 4,005.04 mi (6,445.49 km) |
