| Reston to Sinop | 5,422.04 mi (8,725.94 km) |
| Reston to Siran | 5,658.99 mi (9,107.27 km) |
| Reston to Sirnak | 5,916.16 mi (9,521.15 km) |
| Reston to Sirvan | 5,872.60 mi (9,451.04 km) |
| Reston to Sivas | 5,601.01 mi (9,013.96 km) |
| Reston to Sivasli | 5,369.05 mi (8,640.66 km) |
| Reston to Siverek | 5,786.33 mi (9,312.20 km) |
| Reston to Sivrice | 5,751.74 mi (9,256.53 km) |
| Reston to Sivrihisar | 5,400.74 mi (8,691.65 km) |
| Reston to Sogut | 5,320.52 mi (8,562.56 km) |
| Reston to Sogutlu | 5,293.10 mi (8,518.42 km) |
| Reston to Soke | 5,306.79 mi (8,540.46 km) |
| Reston to Solhan | 5,790.99 mi (9,319.70 km) |
| Reston to Soma | 5,252.13 mi (8,452.49 km) |
| Reston to Sorgun | 5,527.80 mi (8,896.13 km) |
