| SeaTac to Savignano sul Rubicone | 5,538.61 mi (8,913.53 km) |
| SeaTac to Savona | 5,427.57 mi (8,734.82 km) |
| SeaTac to Scafati | 5,792.95 mi (9,322.86 km) |
| SeaTac to Scalea | 5,881.31 mi (9,465.06 km) |
| SeaTac to Scandiano | 5,466.55 mi (8,797.57 km) |
| SeaTac to Scandicci | 5,529.12 mi (8,898.26 km) |
| SeaTac to Schio | 5,416.02 mi (8,716.24 km) |
| SeaTac to Sciacca | 5,954.50 mi (9,582.84 km) |
| SeaTac to Scicli | 6,039.97 mi (9,720.39 km) |
| SeaTac to Scordia | 6,012.54 mi (9,676.24 km) |
| SeaTac to Scorze | 5,442.42 mi (8,758.73 km) |
| SeaTac to Sedico | 5,409.46 mi (8,705.69 km) |
| SeaTac to Sedriano | 5,370.66 mi (8,643.25 km) |
| SeaTac to Segni | 5,699.29 mi (9,172.13 km) |
| SeaTac to Segrate | 5,378.53 mi (8,655.90 km) |
