| Ano Syros to Sestao | 1,515.63 mi (2,439.17 km) |
| Ano Syros to Sevilla | 1,689.12 mi (2,718.38 km) |
| Ano Syros to Sevilla La Nueva | 1,561.35 mi (2,512.74 km) |
| Ano Syros to Silla | 1,372.23 mi (2,208.39 km) |
| Ano Syros to Silleda | 1,776.96 mi (2,859.74 km) |
| Ano Syros to Sitges | 1,257.54 mi (2,023.81 km) |
| Ano Syros to Socuellamos | 1,499.70 mi (2,413.53 km) |
| Ano Syros to Soller | 1,206.10 mi (1,941.03 km) |
| Ano Syros to Solsona | 1,277.24 mi (2,055.53 km) |
| Ano Syros to Son Servera | 1,170.92 mi (1,884.41 km) |
| Ano Syros to Sonseca | 1,559.36 mi (2,509.55 km) |
| Ano Syros to Sopelana | 1,514.82 mi (2,437.87 km) |
| Ano Syros to Soria | 1,480.35 mi (2,382.40 km) |
| Ano Syros to Suances | 1,568.66 mi (2,524.52 km) |
| Ano Syros to Sueca | 1,367.46 mi (2,200.71 km) |
