| Echelon to Sesena | 3,665.71 mi (5,899.39 km) |
| Echelon to Sestao | 3,609.95 mi (5,809.65 km) |
| Echelon to Sevilla | 3,637.49 mi (5,853.97 km) |
| Echelon to Sevilla La Nueva | 3,642.88 mi (5,862.65 km) |
| Echelon to Silla | 3,845.49 mi (6,188.72 km) |
| Echelon to Silleda | 3,379.86 mi (5,439.36 km) |
| Echelon to Sitges | 3,893.08 mi (6,265.31 km) |
| Echelon to Socuellamos | 3,732.90 mi (6,007.53 km) |
| Echelon to Soller | 3,980.71 mi (6,406.34 km) |
| Echelon to Solsona | 3,856.88 mi (6,207.05 km) |
| Echelon to Son Servera | 4,016.49 mi (6,463.91 km) |
| Echelon to Sonseca | 3,665.18 mi (5,898.53 km) |
| Echelon to Sopelana | 3,609.30 mi (5,808.61 km) |
| Echelon to Soria | 3,677.24 mi (5,917.95 km) |
| Echelon to Suances | 3,558.20 mi (5,726.37 km) |
