| Grayslake to Sesena | 4,192.64 mi (6,747.40 km) |
| Grayslake to Sestao | 4,106.05 mi (6,608.04 km) |
| Grayslake to Sevilla | 4,195.50 mi (6,752.01 km) |
| Grayslake to Sevilla La Nueva | 4,168.89 mi (6,709.19 km) |
| Grayslake to Silla | 4,366.76 mi (7,027.62 km) |
| Grayslake to Silleda | 3,898.94 mi (6,274.73 km) |
| Grayslake to Sitges | 4,390.41 mi (7,065.69 km) |
| Grayslake to Socuellamos | 4,263.38 mi (6,861.24 km) |
| Grayslake to Soller | 4,486.95 mi (7,221.05 km) |
| Grayslake to Solsona | 4,348.69 mi (6,998.54 km) |
| Grayslake to Son Servera | 4,521.37 mi (7,276.45 km) |
| Grayslake to Sonseca | 4,196.37 mi (6,753.41 km) |
| Grayslake to Sopelana | 4,104.65 mi (6,605.80 km) |
| Grayslake to Soria | 4,185.47 mi (6,735.86 km) |
| Grayslake to Suances | 4,056.70 mi (6,528.63 km) |
