| Mount Washington to Sesena | 4,226.06 mi (6,801.18 km) |
| Mount Washington to Sestao | 4,159.16 mi (6,693.53 km) |
| Mount Washington to Sevilla | 4,207.11 mi (6,770.68 km) |
| Mount Washington to Sevilla La Nueva | 4,202.87 mi (6,763.87 km) |
| Mount Washington to Silla | 4,404.33 mi (7,088.08 km) |
| Mount Washington to Silleda | 3,936.87 mi (6,335.78 km) |
| Mount Washington to Sitges | 4,443.49 mi (7,151.10 km) |
| Mount Washington to Socuellamos | 4,294.55 mi (6,911.41 km) |
| Mount Washington to Soller | 4,534.60 mi (7,297.73 km) |
| Mount Washington to Solsona | 4,405.10 mi (7,089.32 km) |
| Mount Washington to Son Servera | 4,569.96 mi (7,354.65 km) |
| Mount Washington to Sonseca | 4,226.92 mi (6,802.56 km) |
| Mount Washington to Sopelana | 4,158.23 mi (6,692.03 km) |
| Mount Washington to Soria | 4,231.14 mi (6,809.36 km) |
| Mount Washington to Suances | 4,108.19 mi (6,611.49 km) |
