| Chicago to Sesimbra | 4,006.17 mi (6,447.31 km) |
| Chicago to Setubal | 4,012.98 mi (6,458.27 km) |
| Chicago to Sever do Vouga | 3,960.72 mi (6,374.17 km) |
| Chicago to Silves | 4,081.79 mi (6,569.01 km) |
| Chicago to Sines | 4,034.40 mi (6,492.74 km) |
| Chicago to Sintra | 3,980.30 mi (6,405.68 km) |
| Chicago to Sobrado de Paiva | 3,955.06 mi (6,365.06 km) |
| Chicago to Sobral de Monte Agraco | 3,983.67 mi (6,411.10 km) |
| Chicago to Soure | 3,971.93 mi (6,392.21 km) |
| Chicago to Tabua | 3,988.89 mi (6,419.51 km) |
| Chicago to Tavira | 4,121.34 mi (6,632.65 km) |
| Chicago to Tomar | 3,997.43 mi (6,433.25 km) |
| Chicago to Tondela | 3,981.05 mi (6,406.88 km) |
| Chicago to Torre de Moncorvo | 4,000.65 mi (6,438.42 km) |
| Chicago to Torres Novas | 3,996.69 mi (6,432.05 km) |
