| Chicago to Solofra | 4,954.88 mi (7,974.12 km) |
| Chicago to Somma Lombardo | 4,505.34 mi (7,250.65 km) |
| Chicago to Somma Vesuviana | 4,936.58 mi (7,944.67 km) |
| Chicago to Sommacampagna | 4,601.04 mi (7,404.65 km) |
| Chicago to Sona | 4,599.02 mi (7,401.40 km) |
| Chicago to Sondrio | 4,531.53 mi (7,292.79 km) |
| Chicago to Sora | 4,866.64 mi (7,832.09 km) |
| Chicago to Sorbolo | 4,608.13 mi (7,416.06 km) |
| Chicago to Soresina | 4,566.85 mi (7,349.63 km) |
| Chicago to Sorisole | 4,540.68 mi (7,307.52 km) |
| Chicago to Sorrento | 4,944.86 mi (7,957.99 km) |
| Chicago to Sorso | 4,699.68 mi (7,563.41 km) |
| Chicago to Sortino | 5,126.87 mi (8,250.89 km) |
| Chicago to Soverato Marina | 5,120.18 mi (8,240.14 km) |
| Chicago to Sovicille | 4,704.28 mi (7,570.80 km) |
