| SeaTac to Selargius | 5,744.72 mi (9,245.24 km) |
| SeaTac to Selvazzano Dentro | 5,445.96 mi (8,764.43 km) |
| SeaTac to Senago | 5,368.95 mi (8,640.49 km) |
| SeaTac to Senigallia | 5,581.16 mi (8,982.01 km) |
| SeaTac to Seravezza | 5,490.52 mi (8,836.14 km) |
| SeaTac to Seregno | 5,366.68 mi (8,636.84 km) |
| SeaTac to Seriate | 5,377.54 mi (8,654.31 km) |
| SeaTac to Sermoneta | 5,706.55 mi (9,183.80 km) |
| SeaTac to Serramanna | 5,728.15 mi (9,218.57 km) |
| SeaTac to Serravalle Pistoiese | 5,511.54 mi (8,869.96 km) |
| SeaTac to Sessa Aurunca | 5,749.21 mi (9,252.46 km) |
| SeaTac to Sesto Calende | 5,347.52 mi (8,606.00 km) |
| SeaTac to Sesto Fiorentino | 5,524.66 mi (8,891.08 km) |
| SeaTac to Sesto San Giovanni | 5,374.41 mi (8,649.28 km) |
| SeaTac to Sestri Levante | 5,453.01 mi (8,775.77 km) |
