| Echelon to Santa Ursula | 3,376.69 mi (5,434.26 km) |
| Echelon to Santander | 3,568.83 mi (5,743.47 km) |
| Echelon to Santany | 4,014.12 mi (6,460.10 km) |
| Echelon to Santiago de Compostela | 3,360.78 mi (5,408.66 km) |
| Echelon to Santiago del Teide | 3,364.07 mi (5,413.95 km) |
| Echelon to Santiponce | 3,629.03 mi (5,840.36 km) |
| Echelon to Santomera | 3,854.88 mi (6,203.84 km) |
| Echelon to Santona | 3,585.53 mi (5,770.35 km) |
| Echelon to Santurce-Antiguo | 3,608.23 mi (5,806.89 km) |
| Echelon to Sarria | 3,416.56 mi (5,498.42 km) |
| Echelon to Sauzal | 3,377.78 mi (5,436.02 km) |
| Echelon to Sedavi | 3,844.71 mi (6,187.46 km) |
| Echelon to Segorbe | 3,826.78 mi (6,158.61 km) |
| Echelon to Segovia | 3,621.72 mi (5,828.60 km) |
| Echelon to Senmanat | 3,897.14 mi (6,271.84 km) |
