| Astorga to Serik | 1,996.20 mi (3,212.57 km) |
| Astorga to Serinhisar | 1,885.68 mi (3,034.71 km) |
| Astorga to Serinyol | 2,270.91 mi (3,654.67 km) |
| Astorga to Seydisehir | 2,021.27 mi (3,252.92 km) |
| Astorga to Seyhan | 2,209.89 mi (3,556.47 km) |
| Astorga to Seyitgazi | 1,914.30 mi (3,080.77 km) |
| Astorga to Siirt | 2,519.29 mi (4,054.40 km) |
| Astorga to Sile | 1,825.64 mi (2,938.09 km) |
| Astorga to Silifke | 2,155.21 mi (3,468.48 km) |
| Astorga to Silivri | 1,758.73 mi (2,830.40 km) |
| Astorga to Silopi | 2,564.07 mi (4,126.46 km) |
| Astorga to Simav | 1,835.43 mi (2,953.85 km) |
| Astorga to Sinanpasa | 1,907.32 mi (3,069.53 km) |
| Astorga to Sindirgi | 1,790.93 mi (2,882.23 km) |
| Astorga to Sinop | 2,087.24 mi (3,359.09 km) |
