| Prospect Heights to Sesena | 4,195.84 mi (6,752.55 km) |
| Prospect Heights to Sestao | 4,110.26 mi (6,614.83 km) |
| Prospect Heights to Sevilla | 4,197.55 mi (6,755.30 km) |
| Prospect Heights to Sevilla La Nueva | 4,172.12 mi (6,714.38 km) |
| Prospect Heights to Silla | 4,370.22 mi (7,033.18 km) |
| Prospect Heights to Silleda | 3,902.31 mi (6,280.16 km) |
| Prospect Heights to Sitges | 4,394.69 mi (7,072.57 km) |
| Prospect Heights to Socuellamos | 4,266.48 mi (6,866.23 km) |
| Prospect Heights to Soller | 4,490.96 mi (7,227.50 km) |
| Prospect Heights to Solsona | 4,353.13 mi (7,005.68 km) |
| Prospect Heights to Son Servera | 4,525.44 mi (7,282.99 km) |
| Prospect Heights to Sonseca | 4,199.42 mi (6,758.32 km) |
| Prospect Heights to Sopelana | 4,108.89 mi (6,612.63 km) |
| Prospect Heights to Soria | 4,189.31 mi (6,742.05 km) |
| Prospect Heights to Suances | 4,060.82 mi (6,535.26 km) |
