| SeaTac to Sinop | 6,102.87 mi (9,821.61 km) |
| SeaTac to Siran | 6,275.30 mi (10,099.12 km) |
| SeaTac to Sirnak | 6,491.39 mi (10,446.89 km) |
| SeaTac to Sirvan | 6,450.22 mi (10,380.62 km) |
| SeaTac to Sivas | 6,279.48 mi (10,105.85 km) |
| SeaTac to Sivasli | 6,253.90 mi (10,064.68 km) |
| SeaTac to Siverek | 6,442.11 mi (10,367.58 km) |
| SeaTac to Sivrice | 6,395.03 mi (10,291.81 km) |
| SeaTac to Sivrihisar | 6,221.04 mi (10,011.80 km) |
| SeaTac to Sogut | 6,161.62 mi (9,916.18 km) |
| SeaTac to Sogutlu | 6,108.68 mi (9,830.97 km) |
| SeaTac to Soke | 6,260.97 mi (10,076.07 km) |
| SeaTac to Solhan | 6,378.90 mi (10,265.85 km) |
| SeaTac to Soma | 6,171.23 mi (9,931.63 km) |
| SeaTac to Sorgun | 6,251.03 mi (10,060.06 km) |
