| SeaTac to Santa Venerina | 5,996.15 mi (9,649.87 km) |
| SeaTac to Santeramo in Colle | 5,843.50 mi (9,404.20 km) |
| SeaTac to Santo Stefano di Magra | 5,472.82 mi (8,807.66 km) |
| SeaTac to Santo Stino di Livenza | 5,446.30 mi (8,764.97 km) |
| SeaTac to Sarezzo | 5,391.51 mi (8,676.80 km) |
| SeaTac to Sarno | 5,791.32 mi (9,320.23 km) |
| SeaTac to Saronno | 5,364.04 mi (8,632.59 km) |
| SeaTac to Sarzana | 5,476.87 mi (8,814.16 km) |
| SeaTac to Sassari | 5,641.05 mi (9,078.39 km) |
| SeaTac to Sasso Marconi | 5,491.95 mi (8,838.44 km) |
| SeaTac to Sassuolo | 5,471.41 mi (8,805.39 km) |
| SeaTac to Sava | 5,886.80 mi (9,473.89 km) |
| SeaTac to Saviano | 5,782.77 mi (9,306.47 km) |
| SeaTac to Savigliano | 5,385.48 mi (8,667.09 km) |
| SeaTac to Savignano sul Panaro | 5,481.62 mi (8,821.82 km) |
