| SeaTac to Santa Ursula | 5,467.16 mi (8,798.55 km) |
| SeaTac to Santander | 5,125.69 mi (8,249.00 km) |
| SeaTac to Santany | 5,566.35 mi (8,958.17 km) |
| SeaTac to Santiago de Compostela | 5,005.60 mi (8,055.73 km) |
| SeaTac to Santiago del Teide | 5,460.85 mi (8,788.39 km) |
| SeaTac to Santiponce | 5,379.99 mi (8,658.25 km) |
| SeaTac to Santomera | 5,510.37 mi (8,868.08 km) |
| SeaTac to Santona | 5,137.60 mi (8,268.16 km) |
| SeaTac to Santurce-Antiguo | 5,156.79 mi (8,299.05 km) |
| SeaTac to Sarria | 5,047.46 mi (8,123.10 km) |
| SeaTac to Sauzal | 5,466.59 mi (8,797.63 km) |
| SeaTac to Sedavi | 5,454.93 mi (8,778.86 km) |
| SeaTac to Segorbe | 5,427.87 mi (8,735.32 km) |
| SeaTac to Segovia | 5,252.68 mi (8,453.38 km) |
| SeaTac to Senmanat | 5,408.31 mi (8,703.84 km) |
